Barley Genetics Newsletter (2007) 37: 188-301

BGS 1, Brachytic 1, *brh1*

Stock number: BGS 1

Locus name: Brachytic 1

Locus symbol: *brh1*

Previous nomenclature and gene symbolization:

> Brachytic = *br* (10, 12).
>
> Breviaristatum-i = *ari-i* (5, 8).
>
> Dwarf x = *dx1* (6).

Inheritance:

> Monofactorial recessive (10, 12).
>
> Located in chromosome 7HS \[1S\] (3), about 9.3 cM distal from the
> *fch12* (chlorina seedling 12) locus (12), 0.8 cM distal from RFLP
> marker BCD129 (9), about 5.0 cM from AFLP marker E4134-8 in subgroup 1
> of the Proctor/Nudinka map (11), and about 13.6 cM proximal from SSR
> marker HVM04 in bin 1H-02 (2).

Description:

> Plants have short leaves, culms, spikes, awns, and kernels. The
> seedling leaf is about 2/3 normal length. A similar reduction in the
> size of other organs is observed, but the awns are less than 1/2
> normal length (6). The mutant phenotype is easy to classify at all
> stages of growth. The approximately 20% reduction in kernels size is
> caused primarily by a reduction in kernel length. The yields of the
> *brh1* mutants are about 2/3 normal and lodging is greatly reduced in
> the Bowman *brh1* lines (2). Börner (1) reported that *ari-i.38*
> seedlings are sensitive to gibberellic acid. Powers (10) states that
> the assigned gene symbol for this mutant is *br* and that L.J. Stadler
> selected this symbol.

Origin of mutant:

> A spontaneous mutant in Himalaya (CIho 1312) (10, 12).

Mutational events:

> *brh1.a* in Himalaya (12); *brh1.c* (GSHO 229) in Moravian (PI 539135)
> (13); *ari-i.38* (NGB 115888, GSHO 1657) in Bonus (PI 189763) (8, 14);
> *brh1.e* (GSHO 1690) in Aramir (PI 467786) (14); *brh1.f* (*dx1*, GSHO
> 1422) in Domen (CIho 9562) (6); *brh1.t* (OUM136, GSHO 1691) in
> Akashinriki (PI 467400, OUJ659); *brh1.x* (7125, DWS1224, GSHO 1692)
> in Volla (PI 280423); *brh1.z* (Hja80001) in Aapo; *brh1.aa*
> (Hja80051) in a Hja80001 cross (4, 7); and *brh1.ae* (FN53) in Steptoe
> (CIho 15229) (4).

Mutant used for description and seed stocks:

> *brh1.a* in Himalaya (GSHO 25); *brh1.a* in Bowman (PI 483237)\*7
> (GSHO 1820); *ari-i.38* in Bowman\*6 (GSHO 1821); *brh1.e* in
> Bowman\*7 (GSHO 1822); *brh1.t* in Bowman\*7 (GSHO 1823); *brh1.x* in
> Bowman\*7 (GSHO 1824); *brh1.z* in Bowman\*7 (GSHO 2179).

References:

> 1\. Börner, A. 1996. GA response in semidwarf barley. Barley Genet.
> Newsl. 25:24-26.
>
> 2\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.

3\. Fedak, G., T. Tsuchiya, and S.B. Helgason. 1972. Use of
monotelotrisomics for linkage mapping in barley. Can. J. Genet. Cytol.
14:949-957.

> 4\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 5\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 6\. Holm, E., and K. Aastveit. 1966. Induction and effects of the
> brachytic allele in barley. Adv. Front Plant Sci. 17:81-94.
>
> 7\. Kivi, E. 1986. (personal communications).
>
> 8\. Kucera, J., U. Lundqvist, and Å. Gustafsson. 1975. Inheritance of
> breviaristatum mutants in barley. Hereditas 80:263-278.
>
> 9\. Li , M., D. Kudrna, and A. Kleinhofs. 2000. Fine mapping of a
> semi-dwarf gene brachytic 1 in barley. p. 72-74. *In* S. Logue (ed.)
> Barley Genetics VIII. Volume III, Proc. Eighth Int. Barley Genet.
> Symp., Adelaide, Dept. Plant Science, Waite Campus, Adelaide
> University, Glen Osmond, South Australia.
>
> 10\. Powers, L. 1936. The nature of the interactions of genes
> affecting four quantitative characters in a cross between *Hordeum
> deficiens* and *vulgare*. Genetics 21:398-420.
>
> 11\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini.
> 2003. Integration of a barley (*Hordeum vulgare*) molecular linkage
> map with the position of genetic loci hosting 29 developmental
> mutants. Heredity 90:390-396.
>
> 12\. Swenson, S.P. 1940. Genetic and cytological studies on a
> brachytic mutant in barley. J. Agric. Res. 60:687-713.
>
> 13\. Szarejko, I., and M. Maluszynski. 1984. New brachytic mutant of
> spring barley variety Aramir. Barley Genet. Newsl. 14:33-35.
>
> 14\. Tsuchiya, T. 1974. Allelic relationships of genes for short-awned
> mutants in barley. Barley Genet. Newsl. 4:80-81.

Prepared:

> T. Tsuchiya and T.E. Haus. 1971. BGN 1:104.

Revised:

> T. Tsuchiya. 1980. BGN 10:100.
>
> J.D. Franckowiak. 1997. BGN 26:44.
>
> J.D. Franckowiak and L. S. Dahleen. 2007. BGN 37:188-189.

Number range CHAPTERBGS 2, Chlorina seedling 12, *fch12*

Stock number: BGS 2

Locus name: Chlorina seedling 12

Locus symbol: *fch12*

Previous nomenclature and gene symbolization:

> Chlorina seedling-c = *f~c~* (3).
>
> Chlorina seedling-fc = *clo-fc* (7).

Inheritance:

> Monofactorial recessive (3).
>
> Located in chromosome 7HS \[1S\] (1, 4), about 3.6 cM distal from the
> *gsh3* (glossy sheath 3) locus (6), and about 9.3 cM proximal from the
> *brh1* (brachytic 1) locus (8), in bin 7H-02 about 2.3 cM from RFLP
> marker KFP027 and co-segregating with markers BCD130 and ABC327 (5).

Description:

> Seedling leaves are yellow with green tips and new leaves show a
> yellow base and a green tip. As the plant develops, leaf color changes
> to pale green (3). Plants are vigorous, but anthesis is delayed and
> seed yield may be low.

Origin of mutant:

> A spontaneous mutant in Colsess (CIho 2792) (3).

Mutational events:

> *fch12.b* (*f~c~*) in Colsess (Colsess V) (3); *fch12.l* (Trebi
> chlorina 453, GSHO 155), *fch12.m* (Trebi V, GSHO 158), *fch12.n*
> (Trebi IX, GSHO 18), *fch12.o* (Trebi XI, GSHO 163) in Trebi (PI
> 537442) (2); *clo-fc.110* in Bonus (PI 189763) (7); *fch12.b* may be
> present in the brachytic chlorina stocks (GSHO 124 and GSHO 174) (9).

Mutant used for description and seed stocks:

> *fch12.b* in Colsess (GSHO 36); *fch12.b* in Bowman (PI 483237)\*7
> (GSHO 1826).

References:

> 1\. Fedak, G., T. Tsuchiya, and S.B. Helgason. 1972. Use of
> monotelotrisomics for linkage mapping in barley. Can. J. Genet. Cytol.
> 14:949-957.
>
> 2\. McMullen, M. 1972. Allelism testing of seven chlorina mutants in
> Trebi barley. Barley Genet. Newsl. 2:76-79.
>
> 3\. Robertson, D.W., and G.W. Deming. 1930. Genetic studies in barley.
> J. Hered. 21:283-288.
>
> 4\. Robertson, D.W., G.W. Deming, and D. Koonce. 1932. Inheritance in
> barley. J. Agric. Res. 44:445-466.
>
> 5\. Schmierer, D., A. Druka, D. Kudrna, and A. Kleinhofs. 2001. Fine
> mapping of the *fch12* chlorina seedling mutant. Barley Genet. Newsl.
> 31:12-13.
>
> 6\. Shahla, A., and T. Tsuchiya. 1987. Cytogenetic studies in barley
> chromosome 1 by means of telotrisomic, acrotrisomic and conventional
> analysis. Theor. Appl. Genet. 75:5-12.
>
> 7\. Simpson, D.J., O. Machold, G. Høyer-Hansen, and D. von Wettstein.
> 1985. *Chlorina* mutants of barley (*Hordeum vulgare* L.). Carlsberg
> Res. Commun. 50:223-238.
>
> 8\. Swenson, S.P. 1940. Genetic and cytological studies on a brachytic
> mutation in barley. J. Hered. 31:213-214.
>
> 9\. Wang, S., and T. Tsuchiya. 1991. Genetic analysis of the
> relationship between new chlorina mutants in genetic stocks and
> established *f* series stocks in barley. Barley Genet. Newsl.
> 20:63-65.

Prepared:

> T. Tsuchiya and T. E. Haus. 1971. BGN 1:105.

Revised:

> T. Tsuchiya. 1980. BGN 10:101.
>
> J.D. Franckowiak and A. Hang. 1997. BGN 26:45.
>
> J.D. Franckowiak. 2007. BGN 37:190-191.

Number range CHAPTERBGS 6, Six-rowed spike 1, *vrs1*

Stock number: BGS 6

Locus name: Six-rowed spike 1

Locus symbol: *vrs1*

Previous nomenclature and gene symbolization:

> Two-row vs six-row = *Zz* (21).
>
> Six-row vs two-row = *Aa* (6).
>
> Two-rowed = *D* (17).
>
> Six-row vs two-row = *Vv* (3).
>
> Six-row vs two-row (*distichon*) vs two-row (*deficiens*) = *A, a^s^*,
> *a^f^* (8).
>
> Reduced lateral spikelet appendage on the lemma = *lr* (9).
>
> Allelic series *v*, *V^d^*, *V*, and *V^t^* (22).
>
> Hexastichon mutants = *hex-v* (5, 6).
>
> Intermedium spike-d = *Int-d* (4).
>
> Reduced lateral spikelet appendage on the lemma = *v^lr\ ^*(19).
>
> The *vrs1* DNA sequence identified as *HvHox1* (10).

Inheritance:

> A multiple allelic series, incomplete dominant allele interactions
> based on the size and shape of lateral spikelets (1, 19, 22).
>
> Located in chromosome 2HL (3, 6, 12, 14), about 30.5 cM distal from
> the *eog1* (elongated outer glume 1) locus (18), in bin 2H-09 and in a
> 0.90-cM interval between markers cMWG699 and MWG865 (11).

Description:

> Alleles at this complex locus modify development of the lateral
> spikelets and the associated lemma awn. The *vrs1.a* allele (*v* gene)
> is present in most six-rowed cultivars and produces well-developed
> lateral spikelets (6). Based on phylogenetic analysis of the six-rowed
> cultivars, the six-rowed gene originated independently at least three
> times (*vrs1.a1*, *vrs1.a2*, and *vrs1.a3*) from different wild type
> (*Vrs1.b*) alleles (10). The lemma awn of lateral spikelets will vary
> from 3/4 to nearly as long as those of central spikelets, depending
> upon alleles present at other loci. The *Vrs1.b* allele (*V* gene,
> *distichon)* is present in many two-rowed cultivars and reduces
> lateral spikelets to sterile bracts with a rounded tip. The *Vrs1.t*
> allele (*V^t^* gene, *deficiens*) causes an extreme reduction in the
> size of lateral spikelets. The *lr* or *v^lr^* (*vrs1.c*) gene in
> Nudihaxtoni and Bozu types will not recombine with the *vrs1.a* allele
> (12, 19) and produces phenotypes similar to the *Vrs1.d* allele
> (*V^d^* gene) of Svanhals (22). The series of induced mutants in
> two-rowed barley called *hex-v* and *Int-d* mutants differ in the size
> of lateral spikelets, but they interact with the *vrs1.a* allele as
> incomplete dominants (5). Many heterozygous combinations with *vrs1.a*
> have a pointed tip on the lemma of sterile lateral spikelets. Alleles
> at the *int-c* (intermedium spike-c) locus modify lateral size in the
> presence of *vrs1.a, Vrs1.b,* and *Vrs1.d,* but not when *Vrs1.t* is
> present (22). Multiple origins of *vrs1* alleles in six-rowed barley
> have been confirmed by molecular analysis (20). Komatsuda et al. (10)
> found that expression of the *Vrs1* gene was strictly localized in the
> lateral-spikelet primordia of immature spikes and suggested that the
> VRS1 protein suppresses development of lateral spikelets.

Origin of mutant:

> Natural occurrence in six-rowed barley and induced frequently by
> mutagenic agents (10, 14).

Mutational events:

> *vrs1.a1* in most six-rowed cultivars (1, 10, 22); *vrs1.a2* in Dissa
> and Valenci (10), *vrs1.a3* in Natsudaikon Mugi (OUK735) (10),
> *Vrs1.b* in wild barley (10), *Vrs1.b2* in Pamella Blue (OUH630) (10),
> *Vrs1.b3* in Bonus (PI 189763) (10), *Vrs1.t* in a few two-rowed
> cultivars (10, 22); *vrs1.c* or *lr* in Nudihaxtoni (PI 32368) (12,
> 19); *Vrs1.d* in Svanhals (PI 5474) (22); 23 induced mutants from
> programs in Belgium, Germany, and Hungary (2); *hex-v.3* (NGB 115545),
> *-v.4* (NGB 115546), *-v.6* (NGB 115547), *-v.7* (NGB115548), *-v.8*
> (NGB 115549), *-v.9* (NGB 115550), *-v.10* (NGB 115551), *-v.11* (NGB
> 115552), *-v.12* (NGB 115553), *-v.18* (NGB 115559), *-v.44* (NGB
> 115581), *-v.45* (NGB 115582 ), *-v.46* (NGB 115583 ), *-v.47* (NGB
> 115584), *-v.48* (NGB 115585), in Bonus, *-v.13* (NGB 115554), *-v.14*
> (NGB 115555), *-v.15* (NGB 115556), *-v.16* (NGB 115557), *-v.17* (NGB
> 115558), *-v.19* (NGB 115560), *-v.21* (NGB 115562), *-v.22* (NGB
> 115563), *-v.23* (NGB 115564), *-v.24* (NGB 115565), *-v.25* (NGB
> 115566), *-v.26* (NGB 115567), *-v.27* (NGB 115568), *-v.28* (NGB
> 115569), *-v.29* (NGB 115570), *-v.30* (NGB 115571), *-v.31* (NGB
> 115572), *-v.35* (NGB 115574) in Foma (CIho 11333), *-v.20* (NGB
> 115561) in Ingrid (CIho 10083), *-v.33* (NGB 115573), *-v.36* (NGB
> 115575), *-v.38* (NGB 115576), *-v.39* (NGB 115577), *-v.41* (NGB
> 115578), *-v.42* (NGB 115579), *-v.43* (NGB 115580) in Kristina (NGB
> 1500) (5, 14); *hex-v.49* (NGB 115586) in Bonus, *-v.50* (NGB 115587),
> *-v.51* (NGB 115588) in Sv 79353, *-v.52* (NGB 119353) in Golf (PI
> 488529) (13); *Int-d.11* (NGB 115429), *-d.12* (NGB 115430), *-d.22*
> (NGB 115440), *-d.24* (NGB 115442), *-d.28* (NGB 115446), *-d.36* (NGB
> 115454) in Foma, *-d.40* (NGB 115458), *-d.41* (NGB 115459), *-d.50*
> (NGB 115468), *-d.57* (NGB 115475), *-d.67* (NGB 115485), *-d.68* (NGB
> 115486), *-d.69* (NGB 115487) in Kristina (5, 15); *Int-d.73* (NGB
> 115491), *-d.80* (NGB 115498), *-d.82* (NGB 115500) in Bonus, *-d.93*
> (NGB 115511), *-d.94* (NGB 115512), *-d.96* (NGB 115514), *-d.97* (NGB
> 115515), *-d.100* (NGB 115518) in Hege (NGB 13692) (13); *vrs1.o*
> (*v1b*) in New Golden (16).

Mutant used for description and seed stock:

> *vrs1.a* in Trebi (PI 537442, GSHO 196); *vrs1.a* in Bonneville (CIho
> 7248) (7); *vrs1.a* from Glenn (CIho 15769) in Bowman (PI 483237)\*8
> (GSHO 1907); *Int-d.12* in Bowman\*7 (GSHO 1910).

References:

> 1\. Biffen, R.H. 1906. Experiments on the hybridization of barleys.
> Proc. Camb. Phil. Soc. 13:304-308.
>
> 2\. Fukuyama, T., J. Hayashi, I. Moriya, and R. Takahashi. 1972. A
> test for allelism of 32 induced six-rowed mutants. Barley Genet.
> Newsl. 2:25-27.
>
> 3\. Griffee, F. 1925. Correlated inheritance of botanical characters
> in barley, and manner of reaction to *Helminthosporium sativum*. J.
> Agric. Res. 30:915-935.
>
> 4\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 5\. Gustafsson, Å., and U. Lundqvist. 1980. Hexastichon and
> intermedium mutants in barley. Hereditas 92:229-236.
>
> 6\. Harlan, H.V., and H.K. Hayes. 1920. Occurrence of the fixed
> intermediate, *Hordeum intermedium haxtoni*, in crosses between *H.
> vulgare* *pallidium* and *H. distichum palmella.* J. Agric.
> Res.19:575-591.
>
> 7\. Hockett, E.A. 1985. Registration of two- and six-rowed isogenic
> Bonneville barley germplasm. Crop Sci. 25:201.
>
> 8\. Hor, K.S. 1924. Interrelations of genetic factors in barley.
> Genetics 9:151-180.
>
> 9\. Immer, F.R., and M.T. Henderson. 1943. Linkage studies in barley.
> Genetics 28:419-440.
>
> 10\. Komatsuda, T., M. Pourkheirandish, C. He, P. Azhaguvel, H.
> Kanamori, D. Perovic, N. Stein, A. Graner, T. Wicker, A. Tagiri, U.
> Lundqvist, T. Fujimura, M. Matsuoka, T. Matsumoto, and M. Yano. 2007.
> Six-rowed barley originated from a mutation in a homeodomain-leucine
> zipper I-class homeobox gene. PNAS 104:1424-1429.
>
> 11\. Komatsuda, T., and K. Tanno. 2004. Comparative high resolution
> map of the six-rowed locus 1 (*vrs1*) in several populations of
> barley, *Hordeum vulgare* L. Hereditas 141:68-73.
>
> 12\. Leonard, W.H. 1942. Inheritance of reduced lateral spikelet
> appendages in the Nudihaxtoni variety of barley. J. Am. Soc. Agron.
> 34:211-221.
>
> 13\. Lundqvist, U. (unpublished).
>
> 14\. Lundqvist, U., and A. Lundqvist. 1987. Barley mutants - diversity
> and genetics. p. 251-257. *In* S. Yasuda and T. Konishi (eds.) Barley
> Genetics V. Proc. Fifth Int. Barley Genet. Symp., Okayama, 1986. Sanyo
> Press Co., Okayama.
>
> 15\. Lundqvist, U., and A. Lundqvist. 1988. Induced intermedium
> mutants in barley: origin, morphology and inheritance. Hereditas
> 108:13-26.
>
> 16\. Makino, T., M. Furusho, and T. Fukuoka. 1995. A mutant having
> six-rowed gene allelic to *v* locus. Barley Genet. Newsl. 24:122.
>
> 17\. Miyake, K., and Y. Imai. 1922. \[Genetic studies in barley. 1.\]
> Bot. Mag., Tokyo 36:25-38. \[In Japanese.\]
>
> 18\. Swenson, S.P., and D.G. Wells. 1944. The linkage relation of four
> genes in chromosome 1 of barley. J. Am. Soc. Agron. 36:429-435.
>
> 19\. Takahashi, R., J. Hayashi, I. Moriya, and S. Yasuda. 1982.
> Studies on classification and inheritance of barley varieties having
> awnless or short-awned lateral spikelets (Bozu barley). I. Variation
> of awn types and classification. Nogaku Kenyu 60:13-24. \[In Japanese
> with English summary.\]
>
> 20\. Tanno, K., S. Taketa, K. Takeda, and T. Komatsuda. 2002. A DNA
> marker closely linked to the *vrs1* locus (row-type gene) indicates
> multiple origins of six-rowed barley (*Hordeum vulgare* L.) Theor.
> Appl. Genet. 104:54-60.
>
> 21\. Ubisch, G. von. 1916. Beitrag zu einer Faktorenanalyse von
> Gerste. Z. Indukt. Abstammungs. Vererbungsl. 17:120-152.
>
> 22\. Woodward, R.W. 1949. The inheritance of fertility in the lateral
> florets of the four barley groups. Agron. J. 41:317-322.

Prepared:

> T.E. Haus. 1975. BGN 5:106.

Revised:

> J.D. Franckowiak and U. Lundqvist. 1997. BGN 26:49-50.
>
> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:192-194.

Number range CHAPTERBGS 7, Naked caryopsis 1, *nud1*

Stock number: BGS 7

Locus name: Naked caryopsis 1

Locus symbol: *nud1*

Previous nomenclature and gene symbolization:

> Naked caryopsis = *k* (14).
>
> Naked caryopsis = *s* (21).
>
> Naked caryopsis = *n* (6, 9).
>
> Hulless = *h* (10).

Inheritance:

> Monofactorial recessive (6, 14, 19).
>
> Located in chromosome 7HL \[1L\] (3, 11, 12, 14, 20), near the
> centromere (3, 11), about 9.6 cM proximal from the *lks2* (short awn
> 2) locus (15), about 10.5 cM proximal from the *dsp1* (dense spike 1)
> locus (15, 16), in bin 7H-07 about 13.1 cM distal from RFLP marker
> MWG808 (2), co-segregating with AFLP markers KT3 and KT7 and SCAR
> marker sKT7 (7), about 0.06 cM distal from SCAR marker sTK3 and the
> same distance proximal from sTK9 (17).

Description:

> The lemma and palea do not adhere to the caryopsis and the grain will
> thresh free of the hull at maturity. The naked caryopsis trait is
> expressed in all environments (16). The naked lines fail to produce a
> cementing substance present in covered lines (4). The *nud1.a* mutant
> depressed the expression by 10 to 20% of other traits such as plant
> height, seed weight (1, 8) and altered malt quality parameters (8).
> The *nud1.a* gene is often associated with the *dsp1.a* (dense
> spike 1) gene in Japanese cultivars (16). Allele *IV* of the marker
> sKT7 near the *nud1* locus was the only one found in naked barley
> cultivars (18); however, the geographic distribution for haplotypes of
> allele *IV* suggest migration of naked types toward eastern Asia (18).

Origin of mutant:

> In an unknown cultivar, but its origin was monophyletic probably in
> southwestern Iran (18), widespread in cultivated barley in Asia.

Mutational events:

> *nud1.a* in Himalaya (CIho 1312) (21); *nud1.b* in Haisa (Mut 4129),
> *nud1.c* (Mut 3041/62) in Ackermann\'s Donaria (PI 161974) (13).

Mutant used for description and seed stocks:

> *nud1.a* in Himalaya (GSHO 115), *nud1.a* from Sermo (CIho 7776) in
> Betzes (PI 129430)\*7 (CIho 16559, GP 37), *nud1.a* from Sermo in
> Compana (CIho 5438)\*7 (CIho 16185, GP 41), *nud1.a* from Sermo in
> Decap (CIho 3351)\*7 (CIho 16563, GP 45) (5); *nud1.a* from Stamm (PI
> 194555) in Betzes\*7 (CIho 16566, GP 48), *nud1.a* from Stamm in
> Compana\*7 (CIho 16183, GP 50), *nud1.a* from Stamm\*7 in Freja (CIho
> 7130)\*7 (CIho 16568, GP 52) (5); *nud1.a* from R.I. Wolfe\'s Multiple
> Recessive Marker Stock in Bowman (PI 483237)\*8 (GSHO 1847).

References:

> 1\. Choo, T-M., K.M. Ho, and R.A. Martin. 2001. Genetic analysis of a
> hulless X covered cross of barley using doubled-haploid lines. Crop
> Sci. 41:1021-1026.
>
> 2\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szues, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 3\. Fedak, G., T. Tsuchiya, and S.B. Helgason. 1972. Use of
> monotelotrisomics for linkage mapping in barley. Can. J. Genet. Cytol.
> 14:949-957.
>
> 4\. Gaines, R.L., D.B. Bechtel, and Y. Pomeranz. 1985. A microscopic
> study on the development of a layer in barley that causes
> hull-caryopsis adherence. Cereal Chem. 62:35--40.
>
> 5\. Hockett, E.A. 1981. Registration of hulless and hulless
> short-awned spring barley germplasm (Reg. nos. GP 35 to 52). Crop Sci.
> 21:146-147.
>
> 6\. Hor, K.S. 1924. Interrelations of genetic factors in barley.
> Genetics 9:151-180.
>
> 7\. Kikuchi, S., S. Taketa, M. Ichii, and S. Kawasaki. 2003. Efficient
> fine mapping of the naked caryopsis gene (*nud*) by HEGS (high
> efficiency genome scanning)/AFLP in barley. Theor. Appl. Genet.
> 108:73-78.
>
> 8\. McGuire, C.F., and E.A. Hockett. 1981. Effect of awn length and
> naked caryopsis on malting quality of Betzes barley. Crop Sci.
> 21:18-21.
>
> 9\. Miyake, K., and Y. Imai. 1922. \[Genetic studies in barley. 1.\]
> Bot. Mag., Tokyo 36:25-38. \[In Japanese.\]
>
> 10\. Neatby, K.W. 1926. Inheritance of quantitative and other
> characters in a barley cross. Sci. Agric. 7:77-84.
>
> 11\. Persson, G. 1969. An attempt to find suitable genetic markers for
> dense ear loci in barley I. Hereditas 62:25-96.
>
> 12\. Robertson, D.W. 1937. Inheritance in barley. II. Genetics
> 22:443-451.
>
> 13\. Scholz, F. 1955. Mutationsversuche an Kulturpflanzen. IV.
> Kulturpflanze 3:69-89.
>
> 14\. So, M., S. Ogura, and Y. Imai. 1919. \[A linkage group in
> barley.\] Nogaku Kaiho 208:1093-1117. \[In Japanese.\]
>
> 15\. Takahashi, R., J. Hayashi, T. Konishi, and I. Moriya. 1975.
> Linkage analysis of barley mutants. BGN 5:56-60.
>
> 16\. Takahashi, R., J. Yamamoto, S. Yasuda, and Y. Itano. 1953.
> Inheritance and linkage studies in barley. Ber. Ohara Inst. landw.
> Forsch. 10:29-52.
>
> 17\. Taketa, S., T. Awayama, S. Amano, Y. Sakurai, and M. Ichii. 2006.
> High-resolution mapping of the *nud* locus controlling the naked
> caryopsis in barley. Plant Breed. 125:337-342.
>
> 18\. Taketa, S., S. Kikuchi, T. Awayama, S. Yamamoto, M. Ichii, and S.
> Kawasaki. 2004. Monophyletic origin of naked barley inferred from
> molecular analyses of a marker closely linked to the naked caryopsis
> gene (*nud*). Theor. Appl. Genet. 108:1236-1242.
>
> 19\. Tschermak, E. von. 1901. Über Züchtung neuer Getreiderassen
> mittelst künstlicher Kreuzung. Kritisch-historische Betrachtungen.
> Zeitschrift für das landwirtschaftliche Versuchswesen Oesterreich
> 4:1029-1060.
>
> 20\. Tsuchiya, T., and R.J. Singh. 1973. Further information on
> telotrisomic analysis in barley. Barley Genet. Newsl. 3:75-78.
>
> 21\. Ubisch, G. von. 1921. Beitrag zu einer Faktorenanalyse von
> Gerste. III. Z. Indukt. Abstammungs. Vererbungsl. 25:198-200.

Prepared:

> T. Tsuchiya and T.E. Haus. 1971. BGN 1:110.

Revised:

> J.D. Franckowiak and T. Konishi. 1997. BGN 26:51-52.
>
> J.D. Franckowiak. 2007. BGN 37:195-196.

Number range CHAPTERBGS 10, Short awn 2, *lks2*

Stock number: BGS 10

Locus name: Short awn 2

Locus symbol: *lks2*

Previous nomenclature and gene symbolization:

> Short awn = *a* (15, 16).
>
> Short awn = *lk* (14).
>
> Short awn 2 = *lk~1~* (7).
>
> Short awn 2 = *lk2* (11).
>
> Short awn 4 = *lk4* (2, 5).

Inheritance:

> Monofactorial recessive (6, 7, 12).
>
> Located in chromosome 7HL \[1L\] (6, 13), estimates range from 7.9 to
> 10.5 cM distal from the *nud1* (naked caryopsis 1) locus (3, 12, 13),
> about 2.8 cM distal from molecular marker WG541 in bin 7H-05 (8),
> about 8.6 cM proximal from RFLP marker WG380B in bin 7H-08 (1).

Description:

> Awns of both central and lateral spikelets are reduced to about 3/5 of
> the long awned type. Texture of the short awn is finer and more
> flexible than that of the long awn, especially in non-uzu genotypes
> (13, 14). The awn length of heterozygotes in some crosses is shorter
> that of the normal parent. Other plant characteristics are apparently
> unaltered by the *lks2.b* gene.

Origin of mutant:

> Spontaneous occurrence in some cultivars distributed in China, Japan,
> Korea, and Nepal (5, 10, 12, 14).

Mutational events:

> *lks2.b* in many cultivars of Oriental origin, often associated with
> the *dsp1.a* (dense spike 1) gene (6, 12, 14); a possible mutant in
> Morex (CIho 15773) (9, 10).

Mutant used for description and seed stocks:

> *lks2.b* in Honen 6 (OUJ469, PI 307495, GSHO 566) (14); *lks2.b* from
> Sermo (CIho 7776) in Betzes (PI 129430)\*7 (CIho 16558, GP 36),
> *lks2.b* from Sermo in Compana (CIho 5438)\*7 (CIho 16188, GP 40),
> *lks2.b* from Sermo in Decap (CIho 3351)\*7 (CIho 16562, GP 44) (4);
> *lks2.b* from R.I. Wolfe\'s Multiple Recessive Stock in Bowman (PI
> 483237)\*9 (GSHO 1850).

References:

> 1\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szues, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 2\. Eslick, R.F., and E.A. Hockett. 1967. Allelism for awn length,
> *lk2*, in barley (*Hordeum* species). Crop Sci. 7:266-267.
>
> 3\. Eslick, R.F., and E.A. Hockett. 1972. Recombination values of four
> genes on chromosome 1. BGN 2:123-126.
>
> 4\. Hockett, E.A. 1981. Registration of hulless and hulless
> short-awned spring barley germplasm (Reg. nos. GP 35 to 52). Crop Sci.
> 21:146-147.
>
> 5\. Litzenberger, S.C., and J.M. Green. 1951. Inheritance of awns in
> barley. Agron. J. 43:117-123.
>
> 6\. Miyake, K., and Y. Imai. 1922. \[Genetic studies in barley. 1.\]
> Bot. Mag., Tokyo 36:25-38. \[In Japanese.\]
>
> 7\. Myler, J.L. 1942. Awn inheritance in barley. J. Agric. Res.
> 65:405-412.
>
> 8\. Pozzi, C., P. Faccioli, V. Terzi, A.M. Stanca, S. Cerioli, P.
> Castiglioni, R. Fink, R. Capone, K.J. Müller, G. Bossinger, W. Rohde,
> and F. Salamini. 2000. Genetics of mutations affecting the development
> of a barley floral bract. Genetics 154:1335-1346.
>
> 9\. Ramage, T. 1984. A semi-dominant short awn mutant in Morex. Barley
> Genet. Newsl. 14:19-20.
>
> 10\. Ramage, T., and J.L.A. Eckhoff. 1985. Assignment of mutants in
> Morex to chromosomes. Barley Genet. Newsl. 15:22-25.
>
> 11\. Robertson, D.W., G.A. Wiebe, and F.R. Immer. 1941. A summary of
> linkage studies in barley. J. Am. Soc. Agron. 33:47-64.

12\. So, M., S. Ogura, and Y. Imai. 1919. \[A linkage group in barley.\]
Nogaku Kaiho 208:1093-1117. \[In Japanese.\]

> 13\. Takahashi, R., J. Hayashi, T. Konishi, and I. Moriya. 1975.
> Linkage analysis of barley mutants. Barley Genet. Newsl. 5:56-60.
>
> 14\. Takahashi, R., J. Yamamoto, S. Yasuda, and Y. Itano. 1953.
> Inheritance and linkage studies in barley. Ber. Ohara Inst. landw
> Forsch. 10:29-52.
>
> 15\. Takezaki, Y. 1927. \[On the genetical formulae of the length of
> spikes and awns in barley, with reference to the computation of the
> valency of the heredity factors.\] Rep. Agric. Exp. Sta., Tokyo
> 46:1-43. \[In Japanese.\]
>
> 16\. Ubisch, G. von. 1921. Beitrag zu einer Faktorenanalyse von
> Gerste. III. Z. Indukt. Abstammungs. Vererbungsl. 25:198-200.

Prepared:

> R. Takahashi. 1972. BGN 2:176.

Revised:

> R. Takahashi and T. Tsuchiya. 1973. BGN 3:119.
>
> J.D. Franckowiak and T. Konishi. 1997. BGN 26:54-55.
>
> J.D. Franckowiak 2007. BGN 37:197-198.

Number range CHAPTERBGS 22, Reaction to *Schizaphis graminum* 1, *Rsg1*

Stock number: BGS 22

Locus name: Reaction to *Schizaphis graminum* 1 (greenbug)

Locus symbol: *Rsg1*

Previous nomenclature and gene symbolization:

> Greenbug resistance = *Grb* (8).
>
> Resistance to *Schizaphis graminum* Rondani (greenbug) = *Rsg,,a* (3).

Inheritance:

> Monofactorial dominant (2, 3, 9).
>
> Located in chromosome 7H \[1\] (4).

Description:

> Resistant seedlings infested with greenbugs (aphids) are not killed,
> while susceptible seedlings are killed, eight weeks after infestation
> by the buildup of the greenbug population (2, 3, 4). The resistance
> provided by Post 90 (PI 549081), having the *Rsg1.a* gene, to most *S.
> graminum* biotypes was commonly 2 to 3 readings on a 1 to 9 scale (7).
> Accessions with the *Rsg1.a* gene conferred resistance to most, but
> not all greenbug populations (5).

Origin of mutant:

> Natural occurrence in Bozu Omugi (OUJ028, PI 87181), Derbent (PI
> 76504), and Kearney (PI 539126, CIho 7580) (1, 3).

Mutational events:

> *Rsg1.a* in Bozu Omugi, Derbent, Kearney, Dobaku (PI 87817), and CIho
> 5087 (PI 82683) (3, 7).

Mutant used for description and seed stocks:

> *Rsg1.a* in Bozu Omugi (GSHO 1317); *Rsg1.a* in Post 90 (PI 549081)
> from Will () (5).

References:

> 1\. Atkins, I.M., and R.G. Dahms. 1945. Reaction of small-grain
> varieties to greenbug attack. USDA Tech. Bull. 901.
>
> 2\. Gardenshire, J.H. 1965. Inheritance and linkage studies on
> greenbug resistance in barley (*Hordeum vulgare* L.). Crop Sci.
> 5:28-29.
>
> 3\. Gardenshire, J.H., and H.L. Chada. 1961. Inheritance of greenbug
> resistance in barley. Crop Sci. 1:349-352.
>
> 4\. Gardenshire, J.H., N.A. Tuleen, and K.W. Stewart. 1973. Trisomic
> analysis of greenbug resistance in barley, *Hordeum vulgare* L. Crop
> Sci. 13:684-685.
>
> 5\. Mornhinweg, D.W., L.H. Edwards, L.H. Smith, G.H. Morgan, J.A.
> Webster, D.R. Porter, and B.F. Carver. 2004. Registration of 'Post 90'
> barley. Crop Sci. 44:2263.
>
> 6\. Porter, D.R., J.D. Burd, and D.W. Mornhinweg. 2007.
> Differentiating greenbug resistance genes in barley. Euphytica
> 153:11-14.
>
> 7\. Porter, D.R., and D.W. Mornhinweg. 2004. Characterization of
> greenbug resistance in barley. Plant Breed. 123:493-494.
>
> 8\. Robertson, D.W., G.A. Wiebe, and R.G. Shands. 1955. A summary of
> linkage studies in cultivated barley, *Hordeum* species: Supplement
> II, 1947-1953. Agron. J. 47:418-425.
>
> 9\. Smith, O.D., A.M. Schlehuber, and B.C. Curtis. 1962. Inheritance
> studies of greenbug (*Toxoptera graminum* Rond.) resistance in four
> varieties of winter barley. Crop Sci. 2:489-491.

Prepared:

> J.G. Moseman. 1976. BGN 6:119.

Revised:

> J.D. Franckowiak. 1997. BGN 26:68.
>
> J.D. Franckowiak. 2007. BGN 37:199-200.

Number range CHAPTERBGS 32, Reaction to *Puccinia hordei* 9, *Rph9*

Stock number: BGS 32

Locus name: Reaction to *Puccinia hordei* 9 (barley leaf rust)

Locus symbol: *Rph9*

Previous nomenclature and gene symbolization:

> Resistance to *Puccinia hordei* Otth 9 = *Pa~9~* (3, 7, 8).
>
> Resistance to *Puccinia hordei* Otth 9 = *Pa9* (2).
>
> Resistance to *Puccinia hordei* 12 = *Rph12* (1, 2, 9).

Inheritance:

> Monofactorial dominant (1, 5, 6).
>
> Located in chromosome 5HL \[7L\] (5), about 26.1 cM distal from the
> *raw1* (smooth awn 1) locus (5), in bin 5H-11 about 9.3 cM proximal
> from esterase 9 (*Est9*) and about 22.5 cM proximal from STS marker
> ABC155 (1), about 29.2 cM distal from the *var1* (variegated 1) locus
> (1).

Description:

> Seedling reaction types range from 0; or necrotic fleck to 23- or
> reduced pustule size (4, 6), but 0; reactions are more common with the
> *Rph9.z* allele, formerly *Rph12.z* (1, 2, 5). The resistant reaction
> of the *Rph9.i* allele is temperature sensitive and is inactivated
> above 20°C (3). Heterozygotes show an intermediate reaction to
> pathogenic isolates of *Puccinia hordei* (5). The original cultivar
> 'Trumpf' was also marketed in the United Kingdom as 'Triumph'.

Origin of mutant:

> Natural occurrence in Abyssinian (Hor 2596, CIho 1234) (3, 7); natural
> occurrence in *Hordeum vulgare* subsp. *spontaneum*, but transferred
> to the cultivar Trumpf (Triumph, PI 548762, GSHO 1590) (2, 9).

Mutational events:

> *Rph9.i* in Abyssinian (3, 7); *Rph9.z* in Trumpf (2, 9).

Mutant used for description and seed stocks:

> *Rph9.i* in Abyssinian (GSHO 1601); *Rph9.i* in Bowman (PI 483237)\*8
> (GSHO 1866); *Rph12.z* in Trumpf (GSHO 1590); *Rph12.z* in Bowman (PI
> 483237)\*9 (GSHO 2145).

References:

> 1\. Borovkova, I.G., Y. Jin, and B.J. Steffenson. 1998. Chromosomal
> location and genetic relationship of leaf rust resistance genes *Rph9*
> and *Rph12* in barley. Phytopathology 88:76-80.
>
> 2\. Clifford, B.C. 1985. Barley leaf rust. p. 173-205. *In* W.R.
> Bushnell and A.P. Roelfs (eds.) The Cereal Rusts, Vol. II. Academic
> Press, New York.
>
> 3\. Clifford, B.C., and A.C.C. Udeogalanya. 1976. Hypersensitive
> resistance of barley to brown rust (*Puccinia hordei* Otth). p. 27-29.
> *In* Proc. 4th Eur. Medit. Cereal Rusts Conf., Interlaken,
> Switzerland.
>
> 4\. Golan, T., Y. Anikster, J.G. Moseman, and I. Wahl. 1978. A new
> virulent strain of *Puccinia hordei*. Euphytica 27:185-189.
>
> 5\. Jin, Y., G.D. Stadler, J.D. Franckowiak, and B.J. Steffenson.
> 1993. Linkage between leaf rust resistance genes and morphological
> markers in barley. Phytopathology 83:230-233.
>
> 6\. Reinhold, M., and E.L. Sharp. 1982. Virulence types of *Puccinia
> hordei* from North America, North Africa and the Middle East. Plant.
> Dis. 66:1009-1011.
>
> 7\. Tan, B.H. 1977. A new gene for resistance to *Puccinia hordei* in
> certain Ethiopian barleys. Cereal Rust Bull. 5:39-43.
>
> 8\. Udeogalanya, A.C.C., and B.C. Clifford. 1976. Genetical,
> physiological and pathological relationships of resistance to
> *Puccinia hordei* and *P. striiformis* in *Hordeum vulgare*. Trans.
> Br. Mycol. Soc. 71:279-287.
>
> 9\. Walther, U. 1987. Inheritance of resistance to *Puccinia hordei*
> Otth in the spring barley variety Trumpf. Cereal Rusts Powdery Mildews
> Bull. 15:20-26.

Prepared:

> J.D. Franckowiak and Y. Jin. 1997. BGN 26:81.
>
> J.D. Franckowiak and Y. Jin. 1997. BGN 26:281 as Number range
> CHAPTERBGS 333, Reaction to *Puccinia hordei* 12, *Rph12*.

Revised:

> J.D. Franckowiak. 2007. BGN 37:201-202.

BGS 41, Brachytic 7, *brh7*

Stock number: BGS 41

Locus name: Brachytic 7

Locus symbol: *brh7*

Previous nomenclature and gene symbolization:

> Brachytic-w = *brh.w* (3).

Inheritance:

> Monofactorial recessive (3, 4).
>
> Located in chromosome 5HS \[7S\] (1), approximately 4.6 cM proximal
> from SSR marker Bmac0113 in bin 5H-04 (1).

Description:

> Plants are about 5/6 of normal height and awns are about 3/4 of normal
> length. The rachis internodes are slightly shorter than normal for
> Bowman. The seedling leaf of *brh7* plants is short and wide and leaf
> blades are wider than those of normal sibs. The Bowman line with
> *brh7* showed less lodging than Bowman. Although the kernels of *brh7*
> plants seem plumper and more globose shaped than those from normal
> sibs, the primary difference is a 10 to 15% reduction in kernel
> length. Kernel weights and grain yields of the *brh7* line are
> slightly lower than those of normal Bowman (1, 2).

Origin of mutant:

> An induced mutant in Volla (PI 280423) (4).

Mutational events:

> *brh7.w* in Volla (7101, DWS1211) (4, 5).

Mutant used for description and seed stocks:

> *brh7.w* in Volla (GSHO 1687); *brh7.w* in Bowman (PI 483237)\*7 (GSHO
> 1943).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Gaul, H. 1986. (Personal communications).

Prepared:

> J.D. Franckowiak. 2002. BGN 32:81.

Revised:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:203.

Number range CHAPTERBGS 44, Brachytic 16, *brh16*

Stock number: BGS 44

Locus name: Brachytic 16

Locus symbol: *brh16*

Previous nomenclature and gene symbolization:

> Brachytic-v = *brh.v* (2).

Inheritance:

> Monofactorial recessive (2, 3).
>
> Located in chromosome 7HL \[1L\] (1), approximately 7.4 cM proximal
> from SSR marker Bmag0135 in bin 7H-13 (1).

Description:

> Plants are less than 2/3 of normal height and awns are about 3/4 of
> normal length in the Bowman backcross-derived line. The peduncle is
> about 2/3 normal length. The rachis internodes are slightly shorter
> than normal. The tip of the spike has a fascinated appearance because
> spikelets are very close together. The seed yield of the Bowman line
> with *brh16* was less than 1/3 of Bowman's yield. Since kernels per
> spikes and kernel size were not reduced, much of the yield loss was
> probably associated with reduced tillering (1). The original
> introduction (HE 2816) contained two dwarf mutants, but only *brh16.v*
> gene was isolated in the Bowman backcross-derived line.

Origin of mutant:

> Probably an ethyl methanesulphonate induced mutant in Korál (PI
> 467778) (4).

Mutational events:

> *brh16.v* in HE 2816 (DWS1176) from a cross between two semidwarf
> mutants (3, 4).

Mutant used for description and seed stocks:

> *brh16.v* in HE 2816/Bowman (GSHO 1686); *brh16.v* in Bowman (PI
> 483237)\*7 (GSHO 2177).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 3\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 4\. Váša, M. 1986. (Personal communications).

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:204.

Number range CHAPTERBGS 60, Liguleless 1, *lig1*

Stock number: BGS 60

Locus name: Liguleless 1

Locus symbol: *lig1*

Previous nomenclature and gene symbolization:

> Ligule and auricle less = *al* (9).
>
> Liguleless = *li* (8).
>
> Exauriculum = *aur-a* (1).

Inheritance:

> Monofactorial recessive (9).
>
> Located in chromosome 2HL (6, 9, 10); about 25.1 cM distal from the
> *mtt4* (mottled leaf 4) locus (2); and near AFLP marker E3633-1 in
> subgroup 21 of the Proctor/Nudinka map (7).

Description:

> The ligule and auricle of all leaves are absent, and the leaf blades
> are erect along the stem. Liguleless plants can be identified visually
> at all stages of growth (9). Reverse mutation of some mutants is
> possible (4). The fine structure analysis of the *lig1* locus
> conducted by Konishi (5) showed that some mutants can recombine.
> Bowman backcross-derived lines with *lig1* gene are similar in
> agronomic traits and maturity to Bowman (2).

Origin of mutant:

> A spontaneous mutant in an unknown cultivar, Muyoji (liguleless) (8).

Mutational events:

> *lig1.my* as Muyoji (OUL007) (9); *lig1.ky* in Koyo (PI 190819)*,
> lig1.a1* (OUM001), *lig1.a2* in Akashinriki (PI 467400, OUJ659);
> *lig1.c1, lig1.c2, lig1.c3, lig1.c4* in Chikurin Ibaraki 1 (OUJ030,
> CIho 7370) (5); *aur-a.1* (*lig1.b1*) (NGB 114359), *aur-a*.2
> (*lig1.b2*) (NGB 114360), *aur-a.7* (*lig1.b7*) (NGB 114365),
> *aur-a.8* (*lig1.b8*) (NGB 114366), *aur-a.9* (*lig1.b9*) (NGB 114367)
> in Bonus (PI 189763), *aur-a.3* (*lig1.b3*) (NGB 114361), *aur-a.4*
> (*lig1.b4*) (NGB 114362)*, aur-a.5* (*lig1.b5*) (NGB 114363),
> *aur-a.6* (*lig1.b6*) (NGB 114364), *aur-a.10* (*lig1.b10*) (NGB
> 114368) in Foma (CIho 11333) (5); *aur-a.11* (NGB 114369)*, aur-a.12*
> (NGB 114370, NGB 114371) in Kristina, *aur-a.13* (NGB 114372)*,
> aur-a.14* (NGB 114373) in Bonus, *aur-a.15* (NGB 119377) in Golf (PI
> 488529) (6); *lig1.2* in Bonus, found in *eli-2* (eligulum-2) (NGB
> 115389) stock as the second mutant (2).

Mutant used for description and seed stocks:

> *lig1.my* as Muyoji (GSHO 6); *lig1.my* in Bowman (PI 483237)\*8 (GSHO
> 1930); *lig1.2* in Bowman\*5 (2).

References:

> 1\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984.
> Inheritance and linkage studies in barley. VI. Ten mutant genes
> located on chromosomes 1 to 7, except 3. Ber. Ohara Inst. landw.
> Biol., Okayama Univ. 18:227-250.
>
> 4\. Konishi, T. 1975. Reverse mutation at the ligule-less locus (*li*)
> of barley. BGN 5:21-23.
>
> 5\. Konishi, T. 1981. Reverse mutation and interallelic recombination
> at the ligule-less locus in barley. p. 838-845. *In* M.J.C. Ascher,
> R.P. Ellis, A.M. Hayter, and R.N.H. Whitehouse. (eds.) Barley
> Genetics. IV. Proc. Fourth Int. Barley Genet. Symp. Edinburgh.
> Edinburgh University Press.
>
> 6\. Lundqvist, U. (Unpublished).
>
> 7\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.
>
> 8\. Robertson, D.W., G.A. Wiebe, and R.G. Shands. 1955. A summary of
> linkage studies in barley: Supplement II, 1947-1953. Agron. J.
> 47:418-425.
>
> 9\. Takahashi, R., J. Yamamoto, S. Yasuda, and Y. Itano. 1953.
> Inheritance and linkage studies in barley. Ber. Ohara Inst. landw.
> Forsch. 10:29-52.
>
> 10\. Woodward, R.W. 1957. Linkages in barley. Agron. J. 49:28-32.

Prepared:

> T. Tsuchiya and T.E. Haus. 1971. BGN 1:120.

Revised:

J.D. Franckowiak, U. Lundqvist, T. Konishi. 1997. BGN26:96.

U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:205-206.

Number range CHAPTERBGS 79, White streak 7, *wst7*

Stock number: BGS 79

Locus name: White streak 7

Locus symbol: *wst7*

Previous nomenclature and gene symbolization:

> Ribbon grass = *rb* (6).
>
> White streak-k = *wst,,k* (10).
>
> White streak-B = *wst,,B* (8).

Inheritance:

> Monofactorial recessive (2, 11).
>
> Located in chromosome 2HL (5, 7, 8,9), about 22.0 cM distal from the
> *gpa1* (grandpa 1) locus (2, 9), over 29.4 cM distal from the *lig1*
> (liguleless 1) locus (8), in bin 2H-15 about 6.1 cM from RFLP marker
> MWG949A (1).

Description:

> Vertical white streaks of variable width and number develop in the
> leaf blades of young secondary tillers. Fewer white streaks and fewer
> tillers with white streaks occur as environmental conditions become
> warm. White streaks can be found until near maturity, but they are
> difficult to observe after heading under field conditions. Often the
> lower or first leaves on early tillers have more and wider streaks.
> The mutant has no apparent affect on agronomic traits in the Bowman
> backcross-derived line (4).

Origin of mutant:

> A spontaneous mutant isolated by Robertson (6, 11).

Mutational events:

> *wst7.k* in an unknown cultivar (2, 11).

Mutant used for description and seed stocks:

> *wst7.k* in an unknown cultivar (GSHO 247); *wst7.k* from R.I.
> Wolfe\'s Multiple Recessive Marker Stock in Bowman (PI 483237)\*7
> (GSHO 1935).

References:

> 1\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szues, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 2\. Doney, D.L. 1961. An inheritance and linkage study of barley with
> special emphasis on purple pigmentation or the auricle. M.S. Thesis.
> Utah State Univ., Logan.
>
> 3\. Franckowiak, J.D. 1996. Coordinator\'s report: Chromosome 2.
> Barley Genet. Newsl. 25:88-90.
>
> 4\. Franckowiak, J.D. (Unpublished).
>
> 5\. Kasha, K.J. 1982. Coordinator\'s report: Chromosome 6. Barley
> Genet. Newsl. 12:90-92.
>
> 6\. Robertson, D.W., G.A. Wiebe, and R.G. Shands. 1947. A summary of
> linkage studies in barley: Supplement I, 1940-1946. J. Am. Soc. Agron.
> 39:464-473.
>
> 7\. Schondelmaier, J., G. Fischbeck, and A. Jahoor. 1993. Linkage
> studies between morphological and RFLP markers in the barley genome.
> Barley Genet. Newsl. 22:57-62.
>
> 8\. Shin, J.S., S. Chao, L. Corpuz, and T.K. Blake. 1990. A partial
> map of the barley genome incorporating restriction fragment length
> polymorphism, polymerase chain reaction, isozyme, and morphological
> marker loci. Genome 23:803-810.
>
> 9\. Walker, G.W.R. 1974. Linkage data for *rb* and *mt3*. Barley
> Genet. Newsl. 4:90-91.
>
> 10\. Wolfe, R.I., and J.D. Franckowiak. 1991. Multiple dominant and
> recessive genetic marker stocks in spring barley. Barley Genet. Newsl.
> 20:117-121.
>
> 11\. Woodward, R.W. 1957. Linkages in barley. Agron. J. 49:28-32.

Prepared:

> J.D. Franckowiak and R.I. Wolfe. 1997. BGN 26:117.

Revised:

> J.D. Franckowiak. 2007. BGN 37:207-208.

Number range CHAPTERBGS 82, Zeocriton 1, *Zeo1*

Stock number: BGS 82

Locus name: Zeocriton 1

Locus symbol: *Zeo1*

Previous nomenclature and gene symbolization:

> \"Kurz und dicht\" *= Knd* (6).

Inheritance:

> Monofactorial incomplete dominant (5).
>
> Located in chromosome 2HL, about 9.2 cM distal from the *lig1*
> (liguleless 1) locus (4), in bin 2H-13 about 7.3 cM distal from RFLP
> marker cnx1 (1).

Description:

> Plants heterozygous for *Zeo1* have short culms, compact spikes, and
> wide kernels. Homozygotes have shorter culms (short peduncle), very
> compact spikes, large outer glumes with long awns, and reduced
> fertility. Generally, the spike emerges from the side of the sheath in
> homozygotes. Although the name *zeocriton* is used for this gene, this
> gene is not from Spratt, the dense ear type described by Engledow (2).

Origin of mutant:

> An X-ray induced mutant in Donaria (PI 161974) (5).

Mutational events:

> *Zeo1.a* in Donaria (Mut 2657) (5); *Zeo1.b,* received as \"Kurz und
> dicht\" and placed in R.I. Wolfe\'s Multiple Dominant Marker Stock
> (GSHO 1614), was probably derived from Mut 2657 (3, 6).

Mutant used for description and seed stocks:

> *Zeo1.a* in Donaria (GSHO 1613); *Zeo1.a* in Bowman (PI 483237)\*5
> (GSHO 1931); *Zeo1.b* in Bowman\*9 (GSHO 1932).

References:

> 1\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szücs, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 2\. Engledow, F.L. 1924. Inheritance in barley. III. The awn and the
> lateral floret (cont\'d): fluctuation: a linkage: multiple
> allelomorphs. J. Genet. 14:49-87.
>
> 3\. Franckowiak, J.D. 1992. Allelism tests among selected semidwarf
> barleys. Barley Genet. Newsl. 21:17-23.
>
> 4\. Luna Villafaña, A., and J.D. Franckowiak. 1995. (Unpublished).
>
> 5\. Scholz, F., and O. Lehmann. 1958. Die Gaterslebener Mutanten der
> Saatgerste in Beziehung zur Formenmannigfaltigkeit der Art *Hordeum
> vulgare* L.s.l. I. Kulturpflanze 6:123-166.
>
> 6\. Wolfe, R.I. (Unpublished).

Prepared:

> J.D. Franckowiak and R.I. Wolfe. 1997. BGN 26:120.
>
> J.D. Franckowiak. 2007. BGN 37:209.

Number range CHAPTERBGS 85, Yellow streak 4, *yst4*

Stock number: BGS 85

Locus name: Yellow streak 4

Locus symbol: *yst4*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (2).
>
> Located in chromosome 2HL, near the *vrs1* (six-rowed spike 1) locus
> (2), in bin 2H-07 near RFLP marker CDO537 (3).

Description:

> Plants have a yellow-green color with numerous, vertical yellow
> streaks in the leaves. The yellow-green color is retained until
> maturity, but the yellow streaks may be difficult to observe after
> heading. Plant vigor and height are reduced, heading is delayed, and
> seed yields are low.

Origin of mutant:

> A sodium azide induced mutant in Glenn (CIho 15769) (1).

Mutational events:

> *yst4.d* in Glenn (DWS1059) (2).

Mutant used for description and seed stocks:

> *yst4.d* in Glenn (GSHO 2502); *yst4.d* in Bowman (PI 483237)\*7 (GSHO
> 1922).

References:

> 1\. Faue, A.C. 1987. Chemical mutagenesis as a breeding tool for
> barley. M.S. Thesis. North Dakota State Univ., Fargo.
>
> 2\. Faue, A.C., A.E. Foster, and J.D. Franckowiak. 1989. Allelism
> testing of an induced yellow streak mutant with the three known yellow
> streak mutants. Barley Genet. Newsl. 19:15-16.
>
> 3\. Kleinhofs, A. 2002. Integrating molecular and
> morphological/physiological marker maps. Coordinator's Report. Barley
> Genet. Newsl. 32:152-159.

Prepared:

> J.D. Franckowiak. 1997. BGN 26:123.

Revised:

> J.D. Franckowiak. 2007. BGN 37:210.

Number range CHAPTERBGS 87, Chlorina seedling 14, *fch14*

Stock number: BGS 87

Locus name: Chlorina seedling 14

Locus symbol: *fch14*

Previous nomenclature and gene symbolization:

> Chlorina seedling 14 = *f14* (2).

Inheritance:

> Monofactorial recessive (2, 4).
>
> Located in chromosome 2HL (2), probably between the *vrs1* (six-rowed
> spike 1) and the *ant2* (anthocyanin-less 2) loci (2), likely in bin
> 2H-11 (3, 4).

Description:

> Seedlings have a pale yellow-green color. The leaves gradually become
> greener starting at the tip of the leaf blade, and mutant plants are
> indistinguishable in color from normal sibs at heading (2). When grown
> in the field, plants produce slightly thinner kernels with about a 10%
> reduction in kernel weight (1).

Origin of mutant:

> A spontaneous mutant in Shyri (Lignee 640//Kober/Teran 78) from
> Ecuador (2).

Mutational events:

> *fch14.w* in Shyri (2, 5).

Mutant used for description and seed stocks:

> *fch14.w* in Shyri (GSHO 1739); *fch14.w* in Bowman (PI 483237)\*6
> (GSHO 1911).

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross
> derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
>
> 3\. Kleinhofs, A. 2006. Integrating molecular and
> morphological/physiological marker maps. Barley Genet. Newsl.
> 36:66-82.
>
> 4\. Kudrna, D., A. Kleinhofs, A. Kilian, and J. Soule. 1996.
> Integrating visual markers with the Steptoe x Morex RFLP map. p. 343.
> *In* A.E. Slinkard, G.J. Scoles, and B.G. Rossnagel (eds.) Proc. Fifth
> Int. Oat Conf. & Seventh Int. Barley Genet. Symp., Saskatoon. Univ. of
> Saskatchewan, Saskatoon.
>
> 5\. Rivendeneira, M. (Personal communications).

Prepared:

> J.D. Franckowiak. 1997. BGN 26:125.

Revised:

> J.D. Franckowiak. 2007. BGN 37:211.

Number range CHAPTERBGS 88, Reaction to *Puccinia hordei* 2, *Rph2*

Stock number: BGS 88

Locus name: Reaction to *Puccinia hordei* 2 (barley leaf rust)

Locus symbol: *Rph2*

Previous nomenclature and gene symbolization:

> Resistance to *Puccinia anomala* Rostr = *Pa* (2).
>
> Resistance to *Puccinia hordei* Otth 2 = *Pa~2~* (9, 15).
>
> Resistance to *Puccinia hordei* A = A (8, 9).

Inheritance:

> Monofactorial incomplete dominant (2, 14).
>
> Located in chromosome 5HS \[7S\] (1), not in the long arm (10), distal
> from the secondary constriction (1), in bin 5H-04 about 3.5 cM
> proximal from RFLP marker CDO749 (1).

Description:

> The seedling reaction type is 0^n^ - 1^c^ with race 4 culture 57-19
> (2); heterozygotes have reaction types ranging from 1 to 3, depending
> on parents. Responses will vary for homozygotes and heterozygotes when
> different rust cultures are tested (8).

Origin of mutant:

> Natural occurrence in Peruvian (CIho 935) and several other cultivars
> (2, 4, 6, 12, 15, 16).

Mutational events:

> *Rph2.b* in Peruvian (4, 12); *Rph2.j* in Batna (CIho 3391) (7, 12);
> *Rph2.k* in Weider (No 22, PI 39398) (2, 11, 15); *Rph2.l* in Juliaca
> (PI 39151) (3, 12); *Rph2.m* in Kwan (PI 39367, GSHO 1392) ( 2, 4,
> 12); *Rph2.n* in Chilean D (PI 48136) (4, 14); an allele at the *Rph2*
> locus is present in Purple Nepal (CIho 1373), Modia (CIho 2483),
> Morocco (CIho 4975), Barley 305 (CIho 6015), Marco (PI 94877) (2);
> Austral (CIho 6358) (4, 6, 7, 12); Marocaine 079 (CIho 8334) (6);
> Q21861 (PI 584766), TR306 (1, 13); accessions with a second *Rph* gene
> besides the *Rph2* allele include Carre 180 (CIho 3390), CIho 14077
> (12); Ricardo (PI 45492) (2, 14, 16); Ariana (CIho 14081) (11, 12,
> 16); Quinn (PI 39401) (8, 9); Bolivia (PI 36360) (2, 8, 9); Reka 1
> (CIho 5051) (4, 6, 7, 12); tentative *Rph2* allele symbols are
> *Rph2.q* in Quinn, *Rph2.r* in Bolivia (GSHO 1598)*, Rph2.s* in
> Ricardo, *Rph2.t* in Reka 1 (GSHO 1594), and *Rph2.u* in Ariana based
> on differential reactions and different cultivar origins (5, 8, 9,
> 12); *Rph2.y* from HJ198\*3/HS2310 (PI 531841, GSHO 1595) (3).

Mutant used for description and seed stocks:

> *Rph2.b* in Peruvian (GSHO 1593); *Rph2.b* in Bowman (PI 483237)\*3
> (GSHO 2320); *Rph2.t* from Rika 1 in Bowman\*8 (GSHO 2321).

References

> 1\. Borovkova, I.G., Y. Jin, B.J. Steffenson, A. Kilian, T.K. Blake,
> and A. Kleinhofs. 1997. Identification and mapping of a leaf rust
> resistance gene in the barley line Q21861. Genome 40:236-241.
>
> 2\. Henderson, M.T. 1945. Studies of the sources of resistance and
> inheritance of reaction to leaf rust, *Puccinia anomala* Rostr., in
> barley. Ph.D. Thesis. Univ. of Minnesota, St. Paul.
>
> 3\. Jin, Y., G.H. Cui, B.J. Steffenson, and J.D. Franckowiak. 1996.
> New leaf rust resistance genes in barley and their allelic and linkage
> relationships with other *Rph* genes. Phytopathology 86:887-890.
>
> 4\. Levine, M.N., and W.J. Cherewick. 1952. Studies on dwarf leaf rust
> of barley. U.S. Dept. Agr. Tech. Bull.1056. 17p.
>
> 5\. Moseman, J.G., and L.W. Greeley. 1965. New physiological strains
> of *Puccinia hordei* among physiological races identified in the
> United States from 1959 through 1964. Plant Dis. Rep. 49:575-578.
>
> 6\. Moseman, J.G., and C.W. Roane. 1959. Physiologic races of barley
> leaf rust (*Puccinia hordei*) isolated in the United States from 1952
> to 1958. Plant Dis. Rep. 43:1000-1003.
>
> 7\. Reinhold, M., and E.L. Sharp. 1982. Virulence types of *Puccinia
> hordei* from North America, North Africa and the Middle East. Plant.
> Dis. 66:1009-1011.
>
> 8\. Roane, C.W. 1962. Inheritance of reaction to *Puccinia hordei* in
> barley. I. Genes for resistance among North American race
> differentiating varieties. Phytopathology 52:1288-1295.
>
> 9\. Roane, C.W., and T.M. Starling. 1967. Inheritance of reaction to
> *Puccinia hordei* in barley. II. Gene symbols for loci in different
> cultivars. Phytopathology 57:66-68.
>
> 10\. Roane, C.W., and T.M. Starling. 1989. Linkage studies with genes
> conditioning leaf rust reaction in barley. Barley Newsl. 33:190-192.
>
> 11\. Sharp, E.L., and M. Reinhold. 1982. Resistance gene sources to
> *Puccinia hordei* in barley. Plant Dis. 66:1012-1013.
>
> 12\. Starling, T.M. 1955. Sources, inheritance, and linkage
> relationships of resistance to race 4 of leaf rust (*Puccinia hordei*
> Otth), race 9 of powdery mildew (*Erysiphe graminis hordei* El.
> Marchal), and certain agronomic characters in barley. Iowa State Coll.
> J. Sci. 30:438-439.
>
> 13\. Steffenson, B.J., and Y. Jin. 1997. A multi-allelic series at the
> *Rph2* locus for leaf rust resistance in barley. Cereal Rusts Powdery
> Mildews Bull. (in press).
>
> 14\. Tan, B.H. 1977. Evaluation host differentials of *Puccinia
> hordei*. Cereal Rust Bull. 5:17-23.
>
> 15\. Watson, I.A., and F.C. Butler. 1947. Resistance to barley leaf
> rust (*Puccinia anomala* Rostr.). Linnean Soc. New South Wales, Proc.
> 72:379-386.
>
> 16\. Zloten, R.R. 1952. The inheritance of reaction to leaf rust in
> barley. M.S. Thesis. Univ. of Manitoba, Winnipeg.

Prepared:

> Y. Jin and J.D. Franckowiak. 1997. BGN 26:126-127.

Revised:

> J.D. Franckowiak. 2007. BGN 37:212-213.

Number range CHAPTERBGS 96, Reaction to *Puccinia hordei* 15, *Rph15*

Stock number: BGS 96

Locus name: Reaction to *Puccinia hordei* 15 (barley leaf rust)

Locus symbol: *Rph15*

Previous nomenclature and gene symbolization:

> *Rph16* = Reaction to *Puccinia hordei* 16 (6, 9).

Inheritance:

> Monofactorial dominant (1, 2).
>
> Located in chromosome 2HS (1, 6); over 32.3 cM proximal from the
> *vrs1* (six-rowed spike 1) locus (1); in bin 2H-6 near molecular
> markers MWG874 (6) and MWG2133 (9); cosegregation with AFLP marker
> P13M40 (9); about 25.2cM distal from the centromere (9); about 14 cM
> proximal from the *Eam1* (Early maturity 1) locus (3).

Description:

> The seedling reaction to most isolates of *Puccinia hordei* is a
> relatively large necrotic fleck, hypersensitive reaction (1). The
> seedling infection type of heterozygotes is indistinguishable from
> that of homozygous resistant seedlings. Alleles at this locus were
> found in six of the first seven *Rph* genes from *Hordeum vulgare*
> subsp *spontaneum* evaluated in Bowman backcross-derived lines (1, 2).
> The *Rph15* locus is likely allelic to *Rph16* based on the failure to
> recover susceptible recombinants (9). Only one of the 350 leaf rust
> isolates (90-3 from Israel) was found to be virulent on *Rph15* lines
> (4, 9). Resistance to isolate 90-3 was observed in progeny from a
> cross between a line with *Rph15* to another source of leaf rust
> resistance (8). *Rph15* represents one of the most effective leaf rust
> resistance genes reported in *Hordeum vulgare* (9).

Origin of mutant:

> Natural occurrence in accession PI 355447 of *Hordeum vulgare* subsp
> *spontaneum*, but isolated in a selection that contained one *Rph*
> gene from the original accession crossed to Bowman (PI 483237) (1, 7).

Mutational events:

> *Rph15.ad* in PI 355447 (1, 2, 5), PI 354937, PI 391024, PI 391069, PI
> 391089, and PI 466245 (1, 2); *Rph15.ae* from HS084 (6, 9); PI 466245
> has at least two genes for leaf rust resistance (7).

Mutant used for description and seed stocks:

> *Rph15.ad* in selection from a cross to Bowman (GSHO 1586); *Rph15.ad*
> in Bowman\*8 (GSHO 2330).

References:

> 1\. Chicaiza, O. 1996. Genetic control of leaf rust in barley. Ph.D.
> dissertation, North Dakota State Univ., Fargo.
>
> 2\. Chicaiza, O., J.D. Franckowiak, and B.J. Steffenson. 1996. New
> sources of resistance to leaf rust in barley. pp. 706-708. *In* A.E.
> Slinkard, G.J. Scoles, and B.G. Rossnagel (eds.). Proc. Fifth Int. Oat
> Conf. & Seventh Int. Barley Genet. Symp., Saskatoon. Univ. of
> Saskatchewan, Saskatoon.
>
> 3\. Falk, A.B. (Personal communications).
>
> 4\. Fetch, T.G. Jr., B.J. Steffenson, and Y. Jin. 1998. Worldwide
> virulence of *Puccinia hordei* on barley. Phytopathology 88:S28.
>
> 5\. Franckowiak, J.D., Y. Jin, and B.J. Steffenson. 1997. Recommended
> allele symbols for leaf rust resistance genes in barley. Barley Genet.
> Newsl. 27:36-44.
>
> 6\. Ivandic, V.,U. Walther, and A. Graner. 1998. Molecular mapping of
> a new gene in wild barley conferring complete resistance to leaf rust
> (*Puccinia hordei* Otth). Theor. Appl. Genet. 97:1235-1239.
>
> 7\. Jin, Y., and B.J. Steffenson. 1994. Inheritance of resistance to
> *Puccinia hordei* in cultivated and wild barley. J. Hered. 85:451-454.
>
> 8\. Sun, Y., J.D. Franckowiak, and S.M. Neate. 2005. Reactions of
> barley lines to leaf rust, caused by Puccinia hordei. Proceedings of
> the 18th [North American Barley Researchers
> Workshop](http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/fcd8068),
> July 17-20, 2005, Red Deer, Alberta, Canada
> http://www1.agric.gov.ab.ca/\$department/deptdocs.nsf/all/fcd10135#Reactions
>
> 9\. Weerasena, J.S., B.J. Steffenson, and A.B. Falk. 2004. Conversion
> of an amplified fragment length polymorphism marker into a co-dominant
> marker in the mapping of the *Rph15* gene conferring resistance to
> barley leaf rust, *Puccinia hordei* Otth. Theor. Appl. Genet.
> 108:712-719.

Prepared:

> J.D. Franckowiak and O. Chicaiza. 1998. BGN 28:29.

Revised:

> J.D. Franckowiak. 2005. BGN 35:186.
>
> J.D. Franckowiak. 2007. BGN 37:214-215.

BGS 98, Early maturity 6, *Eam6*

Stock number: BGS 98

Locus name: Early maturity 6

Locus symbol: *Eam6*

Previous nomenclature and gene symbolization:

> Early heading = *Ea* (9).
>
> Early maturity 6 = *Ea6* (7).

Inheritance:

> Monofactorial dominant (9).
>
> Located in chromosome 2HS, about 13.5 cM proximal from the *vrs1*
> (six-rowed spike 1) locus (9), near the *gsh5* (glossy sheath 5) locus
> based on linkage drag (1, 2), near molecular marker ABC167b in bin
> 2H-08 (5, 8).

Description:

> Alleles at the *Eam6* locus alter the timing of floral initiation when
> barley is grown under long-day conditions. In temperate climates, the
> *Eam6.h* gene induces spring barley to head two to five days earlier
> than plants with the recessive allele (1, 5). A much stronger response
> to long photoperiods is associated with the *Eam1* gene. Tohno-oka et
> al. (8) reported that *Eam6* gene from Morex (CIho 15773) is effective
> when the photoperiod is 13 hours or longer and that the *Eam1* gene
> from Steptoe (CIho 15229) induces early heading when the photoperiod
> is 14 hours or longer. In North Dakota, plants with both the *Eam1*
> and *Eam6* genes head one to two days earlier than those with only the
> *Eam1* gene (1). The factors, *Eam1* and *Eam6*, for early heading
> were studied possibly by Yasuda (10) and named "A" and "B",
> respectively. A QTL for long-day photoperiod response in North
> American two-rowed and six-rowed barleys in the *Eam6* region of 2H
> was reported by Moralejo et al. (6) and Horsley et al. (3),
> respectively. *Eam6* may interact with other maturity genes because a
> QTL for early heading was detected in 2HS under both short- and
> long-day environments in the Harrington/Morex mapping population (4).

Origin of mutant:

> Natural occurrence in many spring, six-rowed barley, represented by
> the cultivar Morex (CIho 15773) (8).

Mutational events:

> *Eam6.h* in an unknown cultivar (8), possibly Trebi (CIho 936) (1);
> *Eam6.h* in Morex (4, 5, 8).

Mutant used for description and seed stocks:

> *Eam6.h* in Morex (CIho 15773, GSHO 2492); *Eam6.h* from Nordic (CIho
> 15216) in Bowman (PI 483237) (1).

References:

> 1\. Franckowiak, J.D., and G. Yu (Unpublished).
>
> 2\. Franckowiak, J.D., and U. Lundqvist. 1997. BGS 355, glossy sheath
> 5, *gsh5*. Barley Genet. Newsl. 26:300-301.
>
> 3\. Horsley, R.D., D. Schmierer, C. Maier, D. Kudrna, C.A. Urrea, B.J.
> Steffenson, P.B. Schwarz, J.D. Franckowiak, M.J. Green, B. Zhang, and
> A. Kleinhofs. 2006. Identification of QTLs associated with Fusarium
> head blight resistance in barley accession CIho 4196. Crop Sci.
> 46:145-156.
>
> 4\. Krasheninnik, N. 2005. Genetic association of Fusarium head blight
> resistance\
> and morphological traits in barley. Ph.D. Thesis. North Dakota state
> Univ., Fargo, ND.
>
> 5\. Marquez-Cedillo, L.A., P.M. Hayes, A. Kleinhofs, W.G. Legge, B.G.
> Rossnagel, K. Sato, S.E. Ullrich, and D. M. Wesenberg. 2001. QTL
> analysis of agronomic traits in barley based on the doubled haploid
> progeny of two elite North American varieties representing different
> germplasm groups. Theor. Appl. Genet. 103:625-637.
>
> 6\. Moralejo, M., J.S. Swanston, P. Muñoz, D. Prada, M. Elía, J.R.
> Russell, L. Ramsay, L. Cistué, P. Codesal, A.M. Casa, I. Romagosa, W.
> Powell, and J.L. Molina-Cano. 2004. Use of new EST markers to
> elucidate the genetic differences in grain protein content between
> European and North American two-rowed malting barleys. Theor. Appl.
> Genet. 110:116-125.
>
> 7\. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A
> summary of linkage studies in cultivated barley, *Hordeum* species:
> Supplement III, 1954-1963. Crop Sci. 5:33-43.
>
> 8\. Tohno-oka, T., M. Ishit, R. Kanatani, H. Takahashi, and K. Takeda.
> 2000. Genetic analysis of photoperiodic response of barley in
> different daylength conditions. p. 239-241. *In* S. Logue (ed.) Barley
> Genetics VIII. Volume III. Proc. Eighth Int. Barley Genet. Symp.,
> Adelaide. Dept. Plant Science, Waite Campus, Adelaide University, Glen
> Osmond, South Australia.
>
> 9\. Woodward, R.W. 1957. Linkages in barley. Agron. J. 49:28-32.
>
> 10\. Yasuda, S. 1958. (Genetic analysis of the response to short
> photoperiod in a barley cross by means of the partitioning method.)
> Nogaku Kenkyu 46:54-62 \[In Japanese\].

Prepared:

> J.D. Franckowiak and T. Konishi. 2002. BGN 32:86-87.

Revised:

> J.D. Franckowiak. 2007. BGN 37:216-217.
>
> BGS 100, Slender dwarf 4, *sld4*

Stock number: BGS 100

Locus name: Slender dwarf 4

Locus symbol: *sld4*

Previous nomenclature and gene symbolization:

> Slender dwarf d = *sld.d* (2).

Inheritance:

> Monofactorial recessive (5, 6).
>
> Located in chromosome 7HS \[5S\] (4), near AFLP marker E 4134-2 in
> subgroup 6 of the Proctor/Nudinka map (4).

Description:

> Plants with the *sld4.d* gene have reduced vigor and are light green
> in color during early stages of growth (6). The *sld4.d* mutant is
> apparently very environmentally sensitive in the Bowman derived line.
> Plants can vary from less than 1/2 to 3/4 of normal height and heading
> can be delayed over 10 days in certain environments. The number of
> fertile spikelets per spike varies from 2/3 normal to near normal.
> Depending on the delay in heading, kernels vary from very thin to near
> normal. Grain yield of the Bowman backcross-derived line can vary from
> very low to nearly normal (1).

Origin of mutant:

> A neutron induced mutant in Two-row Glacier (5). (Glacier is available
> as CIho 6976.)

Mutational events:

> *sld4.d* in Two-row Glacier (80-T-5899-2-13, DWS1368) (2, 3, 5).

Mutant used for description and seed stocks:

> *sld4.d* in Two-row Glacier (GSHO 2479); *sld4.d* in Bowman (PI
> 483237)\*7 (GSHO 1880).

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Franckowiak, J.D. 1999. Coordinator's report: Semidwarf genes.
> Barley Genet. Newsl. 29:74-79.
>
> 3\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 4\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley *(Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.

5\. Ramage, R.T., and P. Curtis. 1981. A light green, dwarf mutant
located on chromosome 2. Barley Genet. Newsl. 11:37-38.

> 6\. Ramage, R.T., and R.A. Ronstadt-Smith. 1983. Location of a light
> green dwarf mutant on chromosome 2. Barley Genet. Newsl. 13:62-64.

Prepared:

> J.D. Franckowiak. 2002. BGN 32:89.

Revised:

> J.D. Franckowiak. 2007. BGN 37:218.

Number range CHAPTERBGS 101, Absent lower laterals 1, *als1*

Stock number: BGS 101

Locus name: Absent lower laterals 1

Locus symbol: *als1*

Previous nomenclature and gene symbolization:

> Absent lower laterals = *als* (2).

Inheritance:

> Monofactorial recessive (2).
>
> Located in chromosome 3HL (2, 3, 5, 6), about 31.2 cM distal from the
> *uzu1* (uzu 1) locus (2), about 39.7 cM proximal from the *cur2*
> (curly 2) locus (3), and near AFLP marker E4234-11 in subgroup 28 of
> the Proctor/Nudinka map (4).

Description:

Lateral spikelets at the base of the spike fail to develop or are
partially developed. Tillers are large, coarse, and stiff, and only 1 or
2 tillers are produced in the six-rowed stock. The plants resemble those
of the (*cul2*) uniculm 2 mutant (2). Plants of the Bowman
backcross-derived line commonly produce 3 to 5 tillers with short
spikes; and seed yields are very low (1).

Origin of mutant:

> A gamma-ray induced mutant in Montcalm (CIho 7149) (2).

Mutational events:

> *als1.a* in Montcalm (Alb Acc 281) (2).

Mutant used for description and seed stocks:

> *als1.a* in Montcalm (GSHO 1065); *als1.a* in Bowman (PI 483237)\*7
> (GSHO 1990).

References:

> 1\. Babb, S., and G.J. Muehlbauer. 2003. Genetic and morphological
> characterization of the barley uniculm 2 (*cul2*) mutant. Theor. Appl.
> Genet. 106:846-857.
>
> 2\. Kasha, K.J., and G.W.R. Walker. 1960. Several recent barley
> mutants and their linkages. Can. J. Genet. Cytol. 2:397-415.
>
> 3\. Konishi, T., J. Hayashi, I. Moriya, and R. Takahashi. 1984.
> Inheritance and linkage studies in barley. VII. Location of six new
> mutant genes on chromosome 3. Ber. Ohara Inst. landw. Biol., Okayama
> Univ. 18:251-264.
>
> 4\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.
>
> 5\. Shahla, A., and T. Tsuchiya. 1983. Telotrisomic analysis in Triplo
> 3S in barley. Barley Genet. Newsl. 13:25.
>
> 6\. Singh, R.J., and T. Tsuchiya. 1974. Further information on
> telotrisomic analysis in barley. Barley Genet. Newsl. 4:66-69.

Prepared:

> T. Tsuchiya and T.E. Haus. 1971. BGN 1:123.

Revised:

> J.D. Franckowiak. 1997. BGN 26:135.
>
> J.D. Franckowiak. 2007. BGN 37:219.

Number range CHAPTERBGS 102, Uzu 1, *uzu1*

Stock number: BGS 102

Locus name: Uzu 1 (semi-brachytic)

Locus symbol: *uzu1*

Previous nomenclature and gene symbolization:

> Normal vs uzu = *h* (12).
>
> Uzu = *u* (4).
>
> Uzu (semi-brachytic) = *uz* (11).
>
> Uzu 2 = *uz2* (3, 13, 15).
>
> Uzu 3 = *uz3* (3, 13, 15).
>
> *Hordeum vulgare* BR-insensitive 1 = *HvBRI1* (1).

Inheritance:

> Monofactorial recessive (4, 7, 9, 11).
>
> Located in chromosome 3HL (5, 6, 11), about 17.6 cM proximal from the
> *alm1* (albino lemma 1) locus (10), in bin 3H-06 near cDNA marker,
> C1271 (1).

Description:

> The *uzu1.a* gene has pleiotropic effects on the elongation of the
> coleoptile, leaf, culm, rachis internode, awn, glume, and kernel (8,
> 9, 11). These organs are often reduced in length and increased in
> width. Changes in organ length are temperature sensitive, but heading
> date and maturity are unaltered. The coleoptile of uzu plants shows a
> prominent projection or hook near the apex. Sometimes the coleoptile
> of the mutant shows a V-shaped notch on the side opposite from the
> projection. Thus, the apex of the coleoptile has two notches, one on
> each side (9, 13, 14). The temperature sensitive reduction in culm
> length of *uzu1.a* plants ranges from less than 15% in cool
> environments to over 75% in warm ones. Chono et al. (1) reported that
> the *uzu1.a* or *HVBRI1* gene is caused by a mutation that changed a
> highly conserved residue of the kinase domain of *BRI1* (*Arabidopsis*
> BR-insensitive 1) (brassinosteroids) receptor protein from His-857 to
> Arg-857.

Origin of mutant:

> Natural occurrence in many cultivars of Japanese origin (8, 9).

Mutational events:

> *uzu1.a* in many Japanese cultivars (9, 13, 15); *uzu1.b* (092AR) in
> Aramir (PI 467781) (2).

Mutant used for description and seed stocks:

> *uzu1.a* in Baitori 11 (OUJ371, PI 182624, GSHO 1300); *uzu1.a* in
> Bowman (PI 483237)\*7 (GSHO 1963).

References:

1\. Chono, M., I. Honda, H. Zeniya, K. Yoneyama, D. Saisho, K. Takeda,
S. Takatsuto, T. Hoshino and Y. Watanabe. 2003. A semidwarf phenotype of
barley uzu results from a nucleotide substitution in the gene encoding a
putative brassinosteroid receptor. Plant Physiol. 133:1209-1219.

> 2\. Gruszka, D., J. Zbieszczyk, M. Kwasniewski, I. Szarejko and M.
> Maluszynski. 2006. A new allele in a *uzu* gene encoding
> brassinosteroid receptor. Barley Genet. Newsl. 36:1-2.
>
> 3\. Leonard, W.H., H.O. Mann, and L. Powers. 1957. Partitioning method
> of genetic analysis applied to plant height inheritance in barley.
> Colorado Agric. Expt. St. Tech. Bull. 60:1-24.
>
> 4\. Miyake, K., and Y. Imai. 1922. \[Genetic studies in barley. 1.\]
> Bot. Mag., Tokyo 36:25-38. \[In Japanese.\]
>
> 5\. Singh, R.J., A. Shahla, and T. Tsuchiya. 1982. Telotrisomic
> analysis of three genes with newly obtained telotrisomic, Triplo 3S,
> in barley. BGN 12:42-44.
>
> 6\. Singh, R.J., and T. Tsuchiya. 1974. Further information on
> telotrisomic analysis in barley. Barley Genet. Newsl. 4:66-69.
>
> 7\. So, M., S. Ogura, and Y. Imai. 1919. \[A linkage group in
> barley.\] J. Sci. Agric. Soc. Jpn. 208:1093-1117. \[In Japanese.\]
>
> 8\. Takahashi, R. 1942. Studies on the classification and the
> geographical distribution of the Japanese barley varieties. I.
> Significance of the bimodal curve of the coleoptile length. Ber. Ohara
> Inst. landw. Forsch. 9:71-90.
>
> 9\. Takahashi, R. 1951. Studies on the classification and geographical
> distribution of the Japanese barley varieties. II. Correlative
> inheritance of some quantitative characters with the ear types. Ber.
> Ohara Inst. landw. Forsch. 9:383-398.
>
> 10\. Takahashi, R., and J. Hayashi. 1959. Linkage study of albino
> lemma character in barley. Ber. Ohara Inst. landw. Biol., Okayama
> Univ. 11:132-140.
>
> 11\. Takahashi, R., and J. Yamamoto. 1951. Studies on the
> classification and geographical distribution of the Japanese barley
> varieties. III. On the linkage relation and the origin of the \"uzu\"
> or semi-brachytic character in barley. Ber. Ohara Inst. landw. Forsch.
> 9:399-410.
>
> 12\. Takezaki, Y. 1927. On the genetical formulae of the length of
> spikes and awns in barley, with reference to the computation of the
> valency of the heredity factors. Rep. Agric. Exp. Sta., Tokyo 46:1-42.
>
> 13\. Tsuchiya, T. 1972. Genetics of *uz*, *uz2* and *uz3* for
> semi-brachytic mutations in barley. Barley Genet. Newsl. 2:87-90.
>
> 14\. Tsuchiya, T. 1976. Allelism testing in barley. II. Allelic
> relationships of three uzu genes. Crop Sci. 16:496-499.
>
> 15\. Tsuchiya, T. 1981. Further results on the allelic relationships
> of three uzu genes in barley. J. Hered. 72:455-458.

Prepared:

> T. Tsuchiya and T.E. Haus. 1971. BGN 1:124.

Revised:

> T. Tsuchiya. 1984. BGN 14:92.
>
> J.D. Franckowiak and T. Konishi. 1997. BGN 26:136-137.
>
> J.D. Franckowiak. 2007. BGN 37:220-221.

Number range CHAPTERBGS 108, Albino lemma 1, *alm1*

Stock number: BGS 108

Locus name: Albino lemma 1

Locus symbol: *alm1*

Previous nomenclature and gene symbolization:

> Albino lemma = *al* (9).
>
> Eburatum = *ebu-a* (3).

Inheritance:

> Monofactorial recessive (9).
>
> Located in chromosome 3HS (9), about 16.5 cM distal from the *uzu1*
> (uzu 1) locus (2, 5, 6, 7, 8, 9), in bin 3H-04 about 4.8 cM proximal
> from RFLP marker MWG844B (1).

Description:

> The lemma and palea are white in color and mostly devoid of
> chlorophyll, but they terminate into green tips with green awns. The
> basal part of lower leaf sheaths and stem nodes are devoid of
> chlorophyll. Ligules and joints between the leaf sheath and blade are
> white in color (9, 10). Plant vigor is reduced slightly and maturity
> is delayed in the Bowman backcross-derived line.

Origin of mutant:

> Spontaneous occurrence in an unknown cultivar (Russia 82) (OUU086, NSL
> 43389) (9).

Mutational events:

> *alm1.a* in Russia 82 (9); *alm1.b* in Liberty (CIho 9549) (2);
> *alm1.c* (Mut 966/61) in Proctor (PI 280420) (4); *ebu-a.1* (NGB
> 115236), -*a.2* (NGB 115237), *-a.3* (NGB 115238) in Foma (CIho 11333)
> (3, 10); *ebu-a.4* (NGB 115239), *-a.5* (NGB 115240) in Foma (6).

Mutant used for description and seed stocks:

> *alm1.a* in Russia 82 (GSHO 270); *alm1.a* in Bowman (PI 483237)\*8
> (GSHO 1953).

References:

> 1\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szues, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 2\. Eslick, R.F., W.L. McProud. 1974. Positioning of the male sterile
> 5 (*msg5*) on chromosome 3. Barley Genet. Newsl. 4:16-23.
>
> 3\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 4\. Häuser, H., and G. Fischbeck. 1972. Translocations and genetic
> analysis of other mutants. Barley Genet. Newsl. 2:28-29.
>
> 5\. Konishi, T., J. Hayashi, I. Moriya, and R. Takahashi. 1984.
> Inheritance and linkage studies in barley. VII. Location of six new
> mutant genes on chromosome 3. Ber. Ohara Inst. landw. Biol., Okayama
> Univ. 18:251-264.
>
> 6\. Lundqvist, U. (Unpublished).
>
> 7\. Moriya, I., and R. Takahashi. 1980. Linkage studies of three
> barley mutants. Barley Genet. Newsl. 10:47-51.
>
> 8\. Nonaka, S. 1973. A new type of cultivar, Mitake, with very few in
> number, but thick and stiff culms. Barley Genet. Newsl. 3:45-47.
>
> 9\. Takahashi, R., and J. Hayashi. 1959. Linkage study of albino lemma
> character in barley. Ber. Ohara Inst. landw. Biol., Okayama Univ.
> 11:132-140.
>
> 10\. Tsuchiya, T. 1973. Allelism testing between established marker
> stocks and Swedish mutants. Barley Genet. Newsl. 3:67-68.

Prepared:

> T. Tsuchiya and T.E. Haus. 1971. BGN 1:130.

Revised:

> T. Tsuchiya. 1980. BGN 10:111.
>
> J.D. Franckowiak and U. Lundqvist. 1997. BGN 26:143.
>
> J.D. Franckowiak and U. Lundqvist. 2007. BGN 37:222-223.

Number range CHAPTERBGS 122, Reaction to *Puccinia hordei* 5, *Rph5*

Stock number: BGS 122

Locus name: Reaction to *Puccinia hordei* 5 (barley leaf rust)

Locus symbol: *Rph5*

Previous nomenclature and gene symbolization:

> Resistance to *Puccinia hordei* Otth 5 = *Pa~5~* (6, 7).
>
> Resistance to *Puccinia hordei* B = *B* (5).
>
> Resistance to *Puccinia hordei* Otth = X (5, 6).
>
> Resistance to *Puccinia hordei* Otth = *Pa~x~* (6).
>
> Resistance to *Puccinia hordei* 6 = *Rph6.f* (11).

Inheritance:

> Monofactorial incomplete dominant (3, 5, 6).
>
> Located in chromosome 3HS (4, 11); about 7.0 cM distal from *Rph7*
> (11), about 0.5 cM proximal from RFLP marker CDO549 (11), about 2.5 cM
> distal from RFLP marker MWG2021 (4).

Description:

> *Rph5.e* in Magnif 102 showed a seedling infection type of 0 - 0;^c^
> with race 4 culture 57-19, and *Rph6.f* from Bolivia had a 0;^n^ -
> 1^c^ seedling infection type with race 4 culture 57-19. (3).
> Heterozygotes frequently show an intermediate response (type 2 or 3
> reaction) to inoculation with pathogenic races, and incomplete
> dominance is observed in segregating progenies (3, 5, 6). Zhong et al.
> (11) demonstrated that *Rph5.e* is allelic to the *Rph6.f* gene
> extracted from Bolivia (PI 36360). *Rph6.f* was identified as a
> monofactorial dominant, but an allele at the *Rph2* (reaction to
> *Puccinia hordei* 2) locus is present in the original cultivar Bolivia
> (PI 36360) (5, 6, 8).

Origin of mutant:

> Natural occurrence in Quinn (PI 39401) (6, 10); natural occurrence in
> Bolivia (PI 36360) (2, 5).

Mutational events:

> *Rph5.e* in Magnif 102 (PI 337140) (10), *Rph5.f* (formerly *Rph6.f)*
> in Bolivia (11), *Rph5.ai* in Quinn along with *Rph2.q* (5, 6).

Mutant used for description and seed stocks:

> *Rph5.e* in Malteria Heda\*4/Quinn (Magnif 102, GSHO 1597) (10);
> *Rph5.e* in Bowman (PI 483237)\*8 (GSHO 1865); *Rph5.f* in Bowman\*8
> (GSHO 2323); *Rph6.f* in Bolivia (GSHO 1598); *Rph6.f* (without an
> *Rph2* allele) in Bowman (PI 483237)\*4 (GSHO 2323) (1).

References:

> 1\. Chicaiza, O., J.D. Franckowiak, and B.J. Steffenson. 1996.
> Backcross-derived lines of barley differing for leaf rust resistance
> genes. pp. 198-200. *In* G.H.J. Kema, R.E. Niks, and R.A. Daamen
> (eds.) Proc. 9th Eur. & Medit. Cereal Rusts & Mildews Conf. Drukkerij
> Ponsen en Looijen B.V., Wageningen.
>
> 2\. Henderson, M.T. 1945. Studies of the sources of resistance and
> inheritance of reaction to leaf rust, *Puccinia anomala* Rostr., in
> barley. Ph.D. Thesis. Univ. of Minnesota, St. Paul.
>
> 3\. Jin, Y., G.H. Cui, B.J. Steffenson, and J.D. Franckowiak. 1996.
> New leaf rust resistance genes in barley and their allelic and linkage
> relationships with other *Rph* genes. Phytopathology 86:887-890.
>
> 4\. Mammadov, J.A., J.C. Zwonitzer, R.M. Biyashev, C.A. Griffey, Y.
> Jin, B.J. Steffenson, and M.A. Saghai Maroof. 2003. Molecular mapping
> of leaf rust resistance gene *Rph5* in barley. Crop Sci. 43:388-393.
>
> 5\. Roane, C.W. 1962. Inheritance of reaction to *Puccinia hordei* in
> barley. I. Genes for resistance among North American race
> differentiating varieties. Phytopathology 52:1288-1295.
>
> 6\. Roane, C.W., and T.M. Starling. 1967. Inheritance of reaction to
> *Puccinia hordei* in barley. II. Gene symbols for loci in differential
> cultivars. Phytopathology 57:66-68.
>
> 7\. Roane, C.W., and T.M. Starling. 1970. Inheritance of reaction to
> *Puccinia hordei* in barley. III. Genes in the cultivars Cebada Capa
> and Franger. Phytopathology 60:788-790.
>
> 8\. Starling, T.M. 1955. Sources, inheritance, and linkage
> relationships of resistance to race 4 of leaf rust (*Puccinia hordei*
> Otth), race 9 of powdery mildew (*Erysiphe graminis hordei* El.
> Marchal), and certain agronomic characters in barley. Iowa State Coll.
> J. Sci. 30:438-439.
>
> 9\. Starling, T.M. 1956. Sources, inheritance, and linkage
> relationships of resistance to race 4 of leaf rust (*Puccinia hordei*
> Otth), race 9 of powdery mildew (*Erysiphe graminis hordei* El.
> Marchal), and certain agronomic characters in barley. Iowa State Coll.
> J. Sci. 30:438-439.
>
> 10\. Yahyaoui, A.H., and E.L. Sharp. 1987. Virulence spectrum of
> *Puccinia hordei* in North Africa and the Middle East. Plant Dis.
> 71:597-598.
>
> 11\. Zhong, S., R.J. Effertz, Y. Jin, J.D. Franckowiak, and B.J.
> Steffenson. 2003. Molecular mapping of the leaf rust resistance gene
> *Rph6* in barley and its linkage relationships with *Rph5* and *Rph7*.
> Phytopathology 93:604-609.

Prepared:

> C.W. Roane. 1976. BGN 6:122.
>
> J.D. Franckowiak and Y. Jin. 1997. BGN 26:501, as Number range
> CHAPTERBGS 575, Reaction to *Puccinia hordei* 6, *Rph6*.

Revised:

> J.D. Franckowiak and Y. Jin. 1997. BGN 26:157.
>
> J.D. Franckowiak and B.J. Steffenson. 2005. BGN 35:188.
>
> J.D. Franckowiak. 2007. BGN 37:224-225.

Number range CHAPTERBGS 130, Early maturity 10, *eam10*

Stock number: BGS 130

Locus name: Early maturity 10

Locus symbol: *eam10*

Previous nomenclature and gene symbolization:

> Early maturity sp = *ea~sp~* (8).

Inheritance:

> Monofactorial recessive (8).
>
> Located in chromosome 3HL (8); about 2.0 ± 5.8 cM from the *Est1-Est4*
> (esterase 1, esterase 4) locus (8); about 5.8 cM distal from RFLP
> marker Xmwg546 (1).

Description:

> In winter nurseries at Cuidad Obregón, Sonora, Mexico and Davis,
> California, USA, plants of Super Precoz 2H head about 11 days earlier
> than lines with the genes *eam7.g* or *eam8.k* for photoperiod
> insensitivity from Atsel and Sv Mari, respectively (8). The *eam10.m*
> gene appears to suppress expression of the *eam7.g* and *eam8.k* genes
> (8). Plants expressing *eam10.m* become chlorotic (yellow green) under
> photothermal stress. Zeaxanthin increases at the expense of
> chlorophyll and other pigments (7). The chlorotic appearance is
> similar to that observed in plants homozygous for other recessive
> genes for early maturity (*eam7*, *eam8*, and *eam9*) (2, 5, 7).
> Plants in the Bowman *eam10.m* line head two days earlier than Bowman
> under long days and are slightly shorter (5).

Origin of mutant:

> Present in Super Precoz 2H (PI 527381) from Russia (7), but
> originating probably as an induced mutant in MC20 (3, 4, 7).

Mutational events:

> *eam10.m* in Super Precoz 2H plus a dominant maturity enhancer ( 4, 5,
> 7); *eam10.m* in Amber Nude without the enhancer (4).

Mutant used for description and seed stocks:

> *eam10.m* in Super Precoz 2H (GSHO 2504); *eam10.m* in Amber Nude
> (GSHO 2505); *eam10.m* from Super Precoz in Bowman (PI 483237)\*5.

References:

> 1\. [Börner, A.](javascript:s('"Borner-A" in AU')), G.H.
> [Buck-Sorlin,](javascript:s('"Buck-Sorlin-GH" in AU')) P.M.
> [Hayes](javascript:s('"Hayes-PM" in AU')), S.
> [Malyshev,](javascript:s('"Malyshev-S" in AU')) and V.
> [Korzun.](javascript:s('"Korzun-V" in AU')) 2002. Molecular mapping of
> major genes and quantitative trait loci determining flowering time in
> response to photoperiod in barley. [Plant
> Breed.](javascript:s('"Plant-breed" in SO')) 121:129-132.
>
> 2\. Dormling, I., and Å. Gustafsson. 1969. Phytotron cultivation of
> early barley mutants. Theor. Appl. Genet. 39:51-61.
>
> 3\. Favret, E.A. 1972. El mejoramiento de las plantas por induccíon de
> mutaciones en latinoamerica. p. 49-59. *In* Induced Mutations and
> Plant Improvement. Int. Atomic Energy Agency, Vienna.
>
> 4\. Favret, E.A., and G.S. Ryan. 1966. New useful mutants in plant
> breeding. p. 49-61. *In* Mutations in Plant Breeding. Int. Atomic
> Energy Agency, Vienna.
>
> 5\. Franckowiak, J.D. (Unpublished).
>
> 6\. Gallagher, L.W. (Unpublished).
>
> 7\. Gallagher, L.W., A.A. Hafez, S.S. Goyal, and D.W. Rains. 1994.
> Nuclear mutations affecting chloroplastic pigments of
> photoperiod-insensitive barley. Plant Breed. 113:65-70.
>
> 8\. Gallagher, L.W., K.M. Soliman, and H. Vivar. 1991. Interactions
> among loci conferring photoperiod insensitivity for heading time in
> spring barley. Crop Sci. 31:256-261.

Prepared:

> L.W. Gallagher and J.D. Franckowiak. 1997. BGN 26:166.

Revised:

> J.D. Franckowiak. 2007. BGN 37:226-227.

Number range CHAPTERBGS 136, Reaction to *Puccinia hordei* 7, *Rph7*

Stock number: BGS 136

Locus name: Reaction to *Puccinia hordei* 7 (barley leaf rust)

Locus symbol: *Rph7*

Previous nomenclature and gene symbolization:

> Resistance to *Puccinia hordei* Otth y = *Pay* (7).
>
> Resistance to *Puccinia hordei* Otth 5 = *Pa~5~* (10).
>
> Resistance to *Puccinia hordei* Otth 7 = *Pa7* (8).

Inheritance:

> Monofactorial dominant (7, 10).
>
> Located in chromosome 3HS (14, 15), linkage to markers in the
> centromeric region was reported (11), about 24.0 cM from the *ant17*
> (proanthocyanidin-free 17) locus (5), in bin 3H-01 about 1.3 cM distal
> from RFLP marker cMWG691 (6), about 3.2 cM from receptor-like kinase
> gene *Hv3Lrk* (2), about 7.0 cM proximal from *Rph5* locus (16).

Description:

> The seedling reaction type is 0;^n^ - 1^c^ (4, 11). Temperature
> studies show that resistance conferred by the *Rph7.g* gene is not
> expressed well above 20ºC (4, 15). Cebada Capa is indistinguishable
> from the cultivar Forrajera Klein (possibly identical to PI 331904)
> (1). The *Rph7* regions from Morex (*rph7*) and Cebada Capa (*Rph7*)
> were sequenced and compared to similar regions from 39 other
> cultivars. The data suggest that a large amount of haplotype
> variability exists in the cultivated barley gene pool and indicate
> rapid and recent divergence at this locus (12).

Origin of mutant:

> Natural occurrence in Cebada Capa (PI 53911) (7, 8, 10).

Mutational events:

> *Rph7.g* in Cebada Capa (7, 8, 10); *Rph7.g* in France 7 and France 21
> (7); *Rph7.g* in Dabat, Gondar (PI 199964), and La Estanzuela (9, 13,
> 16); *Rph7.ac* in Tu17a, a Bowman backcross-derived line from Tunisia
> 17 (3).

Mutant used for description and seed stocks:

> *Rph7.g* in Cebada Capa (GSHO 1318); *Rph7.g* in Bowman (PI 483237)\*8
> (GSHO 1994).

References:

> 1\. Arias, G. (Personal communications).
>
> 2\. Brunner, S., B. Keller, and C. Feuillet. 2000. Molecular mapping
> of the *Rph7.g* leaf rust resistance gene in barley (*Hordeum vulgare*
> L.). Theor. Appl. Genet. 101:783-788.
>
> 3\. Chicaiza, O., J.D. Franckowiak, and B.J. Steffenson. 1996. New
> sources of resistance to leaf rust in barley. p. 706-708. *In* A.E.
> Slinkard, G.J. Scoles, and B.G. Rossnagel (eds.) Proc. Fifth Int. Oat
> Conf. & Seventh Int. Barley Genet. Symp., Saskatoon. Univ. of
> Saskatchewan, Saskatoon.
>
> 4\. Clifford, B.C., and H. W. Roderick. 1981. Detection of cryptic
> resistance of barley to *Puccinia hordei*. Trans. Br. Mycol. Soc.
> 76:17-24.
>
> 5\. Falk, D.E. 1985. Genetic studies with proanthocyanidin-free
> barley. Barley Genet. Newsl. 15:27-30.
>
> 6\. Graner, A., S. Streng, A. Drescher, Y. Jin, I. Borovkova, and B.J
> Steffenson. 2000. Molecular mapping of the leaf rust resistance gene
> *Rph7* in barley. Plant Breed. 119:389-392.
>
> 7\. Johnson, R. 1968. The genetics of resistance of some barley
> varieties to *Puccinia hordei*. p. 160-162. *In* Proc. Eur. Medit.
> Cereal Rust Conf., Oeiras, Portugal.
>
> 8\. Nover, I., and C.O. Lehmann. 1974. Resistenzeigenschaften im
> Gersten- und Weizensortiment Gatersleben. 18. Prüfung von
> Sommergersten auf ihr Verhalten gegen Zwergrost (*Puccinia hordei*
> Otth). Kulturpflanze 22:25-43.
>
> 9\. Parlevliet, J.E. 1976. The genetics of seedling resistance to leaf
> rust, *Puccinia hordei* Otth, in some spring barley cultivars.
> Euphytica 25:249-254.
>
> 10\. Roane, C.W., and T.M. Starling. 1970. Inheritance of reaction to
> *Puccinia hordei* in barley. III. Genes in the cultivars Cebada Capa
> and Franger. Phytopathology 60:788-790.
>
> 11\. Roane, C.W., and T.M. Starling. 1989. Linkage studies with genes
> conditioning leaf rust reaction in barley. Barley Newsl. 33:190-192.
>
> 12\. Scherrer, B., E. Isidore, P. Klein, J-S. Kim, A. Bellec, B.
> Chalhoub, B. Keller, and C. Feuillet. 2005. Large intraspecific
> haplotype variability at the *Rph7* locus results from rapid and
> recent divergence in the barley genome. Plant Cell 17:361-374.
>
> 13\. Tan, B.H. 1978. Verifying the genetic relationships between three
> leaf rust resistance genes in barley. Euphytica 27:317-323.
>
> 14\. Tuleen. N.A., and M.E. McDonald. 1971. Location of genes *Pa* and
> *Pa5*. Barley Newsl. 15:106-107.
>
> 15\. Udeogalanya, A.C.C., and B.C. Clifford. 1976. Genetical,
> physiological and pathological relationships of resistance to
> *Puccinia hordei* and *P. striiformis* in *Hordeum vulgare*. Trans.
> Br. Mycol. Soc. 71:279-287.
>
> 16\. Zhong, S., R.J. Effertz, Y. Jin, J.D. Franckowiak, and B.J.
> Steffenson. 2003. Molecular mapping of the leaf rust resistance gene
> *Rph6* in barley and its linkage relationships with *Rph5* and *Rph7*.
> Phytopathology 93:604-609.

Prepared:

> J.D. Franckowiak and Y. Jin. 1997. BGN 26:173.

Revised:

> J.D. Franckowiak. 2007. BGN 37:228-229.

BGS 142, Brachytic 8, *brh8*

Stock number: BGS 142

Locus name: Brachytic 8

Locus symbol: *brh8*

Previous nomenclature and gene symbolization:

> Brachytic-ad = *brh.ad* (3).

Inheritance:

> Monofactorial recessive (3, 5, 6).
>
> Located in chromosome 3HS (4), near the *btr1* (non-brittle rachis 1)
> locus based on linkage drag (4), about 26.3 cM proximal from SSR
> marker HVM60 in bin 3H-08 (1).

Description:

> In the Bowman backcross-derived line, *brh8* plants are 3/4 to 5/6 of
> normal height and awns are 2/3 to 3/4 of normal length. The peduncle
> is 3/4 normal length. The seedling leaf of *brh8* plants is shorter
> and wider than those of normal sibs and the leaf blades are slightly
> wider. Kernels of *brh8* plants are shorter than that of normal sibs
> and their weights are nearly15% lower. Heading dates are 2 or 3 days
> later, spikes have 3 to 4 more kernels, and rachis internodes are
> about 20% shorter. Grain yield is nearly normal (1, 2).

Origin of mutant:

> Probably a sodium azide induced mutant in Birgitta (NSGC 1870, NGB
> 1494, NGB 14667) (6).

Mutational events:

> *brh8.ad* in Birgitta (17:16:1, DWS1008) (5, 6).

Mutant used for description and seed stocks:

> *brh8.ad* in Birgitta (GSHO 1671); *brh8.ad* in Bowman (PI 483237)\*8
> (GSHO 1944).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross
> derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
>
> 5\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 6\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak. 2002. BGN 32:92.

Revised:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:230.

Number range CHAPTERBGS 148, Brachytic 14, *brh14*

Stock number: BGS 148

Locus name: Brachytic 14

Locus symbol: *brh14*

Previous nomenclature and gene symbolization:

> Brachytic-q = *brh.q* (4).

Inheritance:

> Monofactorial recessive (4, 5).

Located in chromosome 3HL (2), approximately 24.9 cM proximal from SSR
marker Bmac0029 in bin 3H-15 (2).

Description:

> Plants are about 2/3 normal height and awns, peduncles are about 2/3
> normal length, and rachis internodes are about 7/8 normal length (2,
> 6, 7). Seedling leaves of *brh14.q* plants are relatively short, but
> they do respond to gibberellic acid treatment (1). Leaf blades are
> about 3/4 normal length. The kernels of *brh14* plants are slightly
> shorter and smaller than those of normal sibs, but there are slightly
> more kernels per spike. However, the grain yields of the *brh14* line
> to average 1/3 to 1/4 of those for Bowman reduced because tillering
> was reduced. Plants show an erect growth habit (2, 3). Failure of the
> internode below the peduncle to elongate was observed in double dwarfs
> involving *brh14.q* in the Akashinriki genetic background (7).

Origin of mutant:

> An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659, PI
> 467400) (6, 7).

Mutational events:

> *brh14.q* in Akashinriki (OUM131, dw-d, DWS1035, GSHO 1682) (4, 5, 6,
> 7).

Mutant used for description and seed stocks:

> *brh14.q* in Akashinriki (GSHO 1682); *brh14.q* in Bowman (PI
> 483237)\*6 (GSHO 2175).

References:

> 1\. Börner, A. 1996. GA response in semidwarf barley. Barley Genet.
> Newsl. 25:24-26.
>
> 2\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 3\. Franckowiak, J.D. (Unpublished).
>
> 4\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 5\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 6\. Konishi, T. 1976. The nature and characteristics of EMS-induced
> dwarf mutants in barley. p. 181-189. *In* H. Gaul (ed.). Barley
> Genetics III. Proc. Third Int. Barley Genet. Symp., Garching, 1975.
> Verlag Karl Thiemig, München.
>
> 7\. Konishi, T. 1977. Effects of induced dwarf genes on agronomic
> characters in barley. p. 21-38. *In* Use of dwarf mutations.
> Gamma-Field Symposium No. 16.

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:231.

Number range CHAPTERBGS 149, Reaction to *Puccinia coronata* var.
*hordei* 1, *Rpc1*

Stock number: BGS 149

Locus name: Reaction to *Puccinia coronata* var. *hordei* 1

Locus symbol: *Rpc1*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial dominant (3).
>
> Located in chromosome 3H centromeric region (1), approximately 2.5 cM
> from RAPD marker OPO08-700 (1).

Description:

> Crown rust of barley was identified as a new disease of barley in
> North America (2). In seedling tests, resistant cultivars exhibited
> necrotic or chlorotic flecks (0; to ; infection types) at infection
> sites and no sporulation (3). Adult plant reactions of Hor2596 were
> resistant to moderately resistant (3). Hor 2596 is one of the
> differential lines for barley leaf rust (caused by *Puccinia hordei*),
> see BGS 032, *Rph9.i* (reaction to *Puccinia hordei* 9). The F1 plants
> from the Bowman/Hor2596 cross exhibited slightly higher infection
> types (1,2 reaction) than the resistant parent (3).

Origin of mutant:

> Natural occurrence in Abyssinian (Hor 2596, CIho 1234) (3).

Mutational events:

> *Rpc1.a* in Hor 2596 (3).

Mutant used for description and seed stocks:

> *Rpc1.a* in Hor 2596 (GSHO 1601) (3).

References:

> 1\. Agrama, H.A., L. Dahleen, M. Wentz, Y, Jin, and B. Steffenson.
> 2004. Molecular mapping of the crown rust resistance gene *Rpc1* in
> barley. Phytopathology 94:858-861.
>
> 2\. Jin, Y., and B. Steffenson. 1999. *Puccinia coronata* var.
> *hordei* nov.: morphology and pathogenicity. Mycologia 91:877-884.
>
> 3\. Jin, Y., and B. Steffenson. 2002. Sources and genetics of crown
> rust resistance in barley. Phytopathology 92:1064-1067.

Prepared:

> Y. Jin and J.D. Franckowiak. 2007. BGS 37:232.

Number range CHAPTERNumber range CHAPTERNumber range CHAPTERBGS 155,
Glossy leaf 1, *glf1*

Stock number: BGS 155

Locus name: Glossy leaf 1

Locus symbol: *glf1*

Previous nomenclature and gene symbolization:

> Waxless bloom on leaves = *w1* (11).
>
> Glossy *= gl* (9).
>
> Glossy leaves = *gl* (16).
>
> Glossy leaf = *gl* (15).
>
> Glossy seedling *2* = *gl2* (3, 9).
>
> Eceriferum-zh = *cer*-*zh* (4).

Inheritance:

> Monofactorial recessive (9).
>
> Located in chromosome 4HL (3, 9, 12, 14), about 7.5 cM distal from the
> *lbi2* (long basal rachis internode 2) locus (1), and about 4.8 cM
> distal from the *Mlg (Reg2,* reaction to *Erysiphe graminis* 2) locus
> (1).

Description:

> Surface wax coating on the leaf blade appears absent from the seedling
> stage to near maturity, and leaves have a shiny appearance (wax code
> ++ ++ -) (4). Plants are semidwarf, relatively weak, and late in
> heading. The stock in the Bonus is highly sterile (4), but the Bowman
> backcross-derived line has nearly complete fertility. The lack of
> surface waxes reduces the ability of growing germ tube of certain
> fungi to find the stomata openings (10).

Origin of mutant:

> A radiation induced mutant in Himalaya (CIho 1312) (9, 13), an X-ray
> induced mutant in Bonus (PI 189763) (4).

Mutational events:

> *glf1.a, glf1.b (gl2*, GSHO 22) in Himalaya (13); *glf1.f* in
> 34-119-1, *glf1*.g in II-34-199-7-2 (GSHO 89) (2); *cer-zh.54* (NGB
> 110938) in Bonus (4, 5); *cer-zh*.*266* (NGB 111153), -*zh.308* (NGB
> 111195), *-zh.357* (NGB 111244, NGB 117254), *-zh.366* (NGB 111253),
> *-zh.432* (NGB 111320), *-zh.433* (NGB 111321, NGB 117256) in Foma
> (CIho 11333) (5, 8); *cer-zh.325* (NGB 111212) in Foma (5);
> *cer-zh.373* (NGB 111260) in Foma (6); *cer-zh.865* (NGB 111753) in
> Bonus (7).

Mutant used for description and seed stocks:

> *glf1.a* in Himalaya (GSHO 98); *cer-zh.54* in Bonus (GSHO 455) is
> used for allelism tests; *glf1.a* in Bowman (PI 483237)\*8 (GSHO
> 2015).

References:

> 1\. Forster, B.P. 1993. Coordinator\'s report: Chromosome 4. Barley
> Genet. Newsl. 22:75-77.
>
> 2\. Haus, T.E., and T. Tsuchiya. 1972. Allelic relationships among
> glossy seedling mutants. Barley Genet. Newsl. 2:79-80.
>
> 3\. Immer, F.R., and M.T. Henderson. 1943. Linkage studies in barley.
> Genetics 28:419-440.
>
> 4\. Lundqvist, U., and D. von Wettstein. 1962. Induction of eceriferum
> mutants in barley by ionizing radiations and chemical mutagens.
> Hereditas 48:342-362.
>
> 5\. Lundqvist, U., and D. von Wettstein. 1971. Stock list for the
> eceriferum mutants. Barley Genet. Newsl. 1:97-102.
>
> 6\. Lundqvist, U., and D. von Wettstein. 1973. Stock list for the
> eceriferum mutants II. Barley Genet. Newsl. 3:110-112.
>
> 7\. Lundqvist, U., and D. von Wettstein. 1977. Stock list for the
> eceriferum mutants IV. Barley Genet. Newsl. 5:92-96.
>
> 8\. Lundqvist, U., P. von Wettstein-Knowles, and D. von Wettstein.
> 1968. Induction of eceriferum mutants in barley by ionizing radiations
> and chemical mutagens. II. Hereditas 59:473-504.
>
> 9\. Robertson, D.W., and O.H. Coleman. 1942. Location of glossy and
> yellow leaf seedlings in two linkage groups. J. Am. Soc. Agron.
> 34:1028-1034.
>
> 10\. Rubiales, D., M.C. Ramirez, T.L.W. Carver, and R.E. Niks. 2001.
> Abnormal germling development by brown rust and powdery mildew on
> *cer* barley mutants. Hereditas 135:271-276.
>
> 11\. Smith, L., 1951. Cytology and genetics of barley. Bot. Rev.
> 17:1-355.
>
> 12\. Tsuchiya, T. 1981. Revised linkage maps of barley. 1981. Barley
> Genet. Newsl. 11:96-98.
>
> 13\. Tsuchiya, T., and T.E. Haus. 1973. Allelism testing in barley. I.
> Analysis of ten mapped genes. J. Hered. 64:282-284.
>
> 14\. Tsuchiya, T., and R.J. Singh. 1982. Chromosome mapping in barley
> by means of telotrisomic analysis. Theor. Appl. Genet. 61:201-208.
>
> 15\. Walker, G.W.R., J. Dietrich, R. Miller, and K. Kasha. 1963.
> Recent barley mutants and their linkages II. Genetic data for further
> mutants. Can. J. Genet. Cytol. 5:200-219.
>
> 16\. Woodward, R.W. 1957. Linkages in barley. Agron. J. 49:28-32.

Prepared:

> T.E. Haus and T. Tsuchiya. 1971. BGN 1:141 as BGS 155, Glossy
> seedling, *gl*; and BGN 1:145 as BGS 159, Glossy seedling 2, *gl2*.
>
> U. Lundqvist. 1975. BGN 5:144 as BGS 426, Eceriferum-zh, *cer-zh*.

Revised:

> T. Tsuchiya. 1980. BGN 10:114 as BGS 155, Glossy seedling, *gl*; and
> BGN 10:116 as BGS 159, Glossy seedling 2, *gl2*.
>
> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:181-182.
>
> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:233-234.

Number range CHAPTERBGS 157, Brachytic 2, *brh2*

Stock number: BGS 157

Locus name: Brachytic 2

Locus symbol: *brh2*

Previous nomenclature and gene symbolization:

> Brachytic 2 = *br2* (9).
>
> Breviaristatum-l = *ari-l* (4, 5).

Inheritance:

> Monofactorial recessive (8).
>
> Located in chromosome 4HL (8), about 1.5 cM proximal from the *glf3*
> (glossy leaf 3) locus (3, 8), over 22.8 cM proximal from the *Kap1*
> (hooded lemma 1) locus (8), near AFLP marker E4140-7 in subgroup 38-40
> of the Proctor/Nudinka map (7), and about 15.9 cM distal from SSR
> marker Bmag0353 near the boundary between bins 4H-06 and 4H-07 (2).

Description:

> Plant height and vigor are reduced to about 2/3 normal; the awn is
> less than 1/4 normal length; the spike is semi-compact; and the leaf,
> kernel, glume and glume awn, rachilla, and coleoptile are shorter than
> in the original cultivar. Auricles are well developed and larger than
> those of the original cultivar (9). In the Bowman backcross-derived
> lines, the peduncle is about 1/2 normal length, kernel weights are
> slightly over 2/3 normal, yield is about 1/2 normal; however, rachis
> internode lengths are normal (2). The *ari-l.3* allele at the *brh2*
> locus is sensitive to gibberellic acid treatment (1).

Origin of mutant:

> An X-ray induced mutant in Svanhals (PI 5474) (9).

Mutational events:

> *brh2.b* in Svanhals (Kmut 28, OUM283) (8); *ari-l.3* (NGB 115848) in
> Bonus (PI 189763) (5); *ari-l.132* (NGB 115942) in Foma (CIho 11333)
> (6); *ari-l.135* (NGB 115945), *-l.145* (NGB 115956), *-l.214* (NGB
> 116023), *-l.237* (NGB 116047) in Foma, *-l.257* (NGB 116066) in
> Kristina (NGB 1500) (5).

Mutant used for description and seed stocks:

> *brh2.b* in Svanhals (GSHO 573); *ari-l.3* in Bonus (GSHO 1660);
> *brh2.b* in Bowman (PI 483237)\*7 (GSHO 2016); *ari-l.3* in Bowman\*7
> (GSHO 2017).

References:

> 1\. Börner, A. 1996. GA response in semidwarf barley. Barley Genet.
> Newsl. 25:24-26.
>
> 2\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 3\. Forster, B.P. 1993. Coordinator\'s report: Chromosome 4. BGN
> 22:75-77.
>
> 4\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 5\. Kucera, J., U. Lundqvist, and Å. Gustafsson. 1975. Inheritance of
> breviaristatum mutants in barley. Hereditas 80:263-278.
>
> 6\. Lundqvist, U. (Unpublished).
>
> 7\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.
>
> 8\. Takahashi, R., J. Hayashi, and I. Moriya. 1971. Linkage studies in
> barley. Barley Genet. Newsl. 1:51-58.
>
> 9\. Tsuchiya, T. 1962. Radiation breeding in two-rowed barley. Seiken
> Ziho 14:21-34.

Prepared:

> T.E. Haus and T. Tsuchiya. 1971. BGN 1:143.

Revised:

> T. Tsuchiya. 1980. BGN 10:115.
>
> J.D. Franckowiak and U. Lundqvist. 1997. BGN 26:184.
>
> J.D. Franckowiak and L. S. Dahleen. 2007. BGN 37:235-236.

Number range CHAPTERBGS 178, Intermedium spike-c, *int-c*

Stock number: BGS 178

Locus name: Intermedium spike-c

Locus symbol: *int-c*

Previous nomenclature and gene symbolization:

> Intensifer for *Z* = *W* (22).
>
> Infertile intermedium = *i* (12, 20, 21).
>
> Allelic series *I^h^, I, i* (12, 23).
>
> Intermedium spike-c = *int-c* (6, 7, 17, 18).
>
> Six-rowed spike 5 = *v5* (24).

Inheritance:

> Monofactorial recessive (4, 5, 21, 24).
>
> Located in chromosome 4HS (3, 5, 18, 21, 24), about 13.1 cM proximal
> from the *fch9* (chlorina seedling 9) locus, about 14.5 cM distal from
> the *Kap1* (hooded lemma 1) locus (2, 3, 4, 5, 11), and about 3.5 cM
> from AFLP marker E4143-5 in subgroup 8 of the Proctor/Nudinka map
> (19).

Description:

> Alleles at the *int-c* (*v5*) locus alter the size of lateral
> spikelets. The lemma apex of lateral kernels is rounded or weakly
> pointed, awnless or short-awned (1, 9, 16). Lower lateral spikelets
> may develop poorly in some *int-c* mutants (4), while seed development
> may occur in all lateral spikelets of others (6, 15). Variability in
> lateral spikelet development exists among the *int-c* mutants and
> environmental conditions can alter expressivity. The *Int-c.a*
> (formerly *I*) allele in six-rowed barley increases the size of
> lateral spikelets, while the *int-c.b* (formerly *i*) allele in
> two-rowed barley prevents anther development in lateral spikelets (9,
> 22). The *int-c.5* mutant in Bonus produces fertile stamens in lateral
> spikelets (9). In the presence of the *Int-c.h* (formerly *I^h^*)
> allele of Mortoni, lateral spikelets are male fertile and may
> occasionally set seed (8, 12). Spikes of *vrs5.n* (*v5*) plants appear
> similar to those of six-rowed barley, but lateral spikelets are
> smaller (less than half the size of the central spikelets) and broader
> (3, 4).

Origin of mutant:

> Natural occurrence in many two-rowed barley cultivars; an X-ray
> induced mutant in Gamma 4 (3, 5).

Mutational events:

> *int-c.b* (*i*) in two-rowed barley (23); *Int-c.h* (*I^h^*) in
> Mortoni (CIho 2210, GSHO 72) (8, 12); *vrs5.n* (*v5*) in Gamma 4
> (38X-197, OUM338) (3, 5, 14); *int-c.5* (NGB 115423) in Bonus (PI
> 189763) (15, 18); *int-c.7* (NGB 115425)*, -c.62* (NGB 116835)*,
> -c.63* (NGB 115481) in Bonus*,* -*c.13* (NGB 115431)*, -c.15* (NGB
> 115433), *-c.16* (NGB 115434), *-c.18* (NGB 115436), *-c.25* (NGB
> 115443)*, -c.29* (NGB 115447) in Foma (CIho 11333), *-c.33* (NGB
> 115451)*, -c.38* (NGB 115456), *-c.45* (NGB 115463)*, -c.48* (NGB
> 115466)*, -c.49* (NGB 115467)*, -c.53* (NGB 115471)*, -c.56* (NGB
> 115474)*, -c.60* (NGB 115478) in Kristina (NGB 1500) (15); *int-c.70*
> (NGB 115488)*, -c.76* (NGB 115494)*, -c.78* (NGB 115496)*, -c.84* (NGB
> 115502) in Bonus, *-c.95* (NGB 115513) in Hege (NGB 13692) (13).

Mutant used for description and seed stocks:

> *vrs5.n* in Gamma 4 (GSHO 776); *int-c.b* in *Hordeum distichon* var.
> *nigrinudum* (GSHO 988); *int-c.5* in Bonus (GSHO 1765); *int-c.b*
> from Compana (CIho 5438) in Bonneville (CIho 7248)\*6 (CIho 16176)
> (10); *vrs5.n* in Bowman (PI 483237)\*6 (GSHO 2002); *int-c.5* in
> Bowman\*6 (GSHO 2003).

References:

> 1\. Åberg, E., and G.A. Wiebe. 1945. Irregular barley, *Hordeum
> irregulare sp. nov*. J. Washington Acad. Sci. 35:161-164.
>
> 2\. Forster, B.P. 1993. Coordinator\'s report: Chromosome 4. Barley
> Genet. Newsl. 22:75-77.
>
> 3\. Fukuyama, T. 1982. Locating a six-rowed gene *v5* on chromosome 4
> in barley. Barley Genet. Newsl. 12:29-31.
>
> 4\. Fukuyama, T., J. Hayashi, and R. Takahashi. 1975. Genetic and
> linkage studies of the five types of induced \'six-row\' mutants.
> Barley Genet. Newsl. 5:12-13.
>
> 5\. Fukuyama, T., R. Takahashi, and J. Hayashi. 1982. Genetic studies
> on the induced six-rowed mutants in barley. Ber. Ohara Inst. landw.
> Biol., Okayama Univ. 18:99-113.
>
> 6\. Gustafsson, Å., and U. Lundqvist. 1980. Hexastichon and
> intermedium mutants in barley. Hereditas 92:229-236.
>
> 7\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 8\. Gymer, P.T. 1977. Probable allelism of Ii and int-c genes. Barley
> Genet. Newsl. 7:34-35.
>
> 9\. Gymer, P.T. 1978. The genetics of the six-row/two row character.
> Barley Genet. Newsl. 8:44-46.
>
> 10\. Hockett, E.A. 1985. Registration of two- and six-rowed isogenic
> Bonneville barley germplasm. Crop Sci. 25:201.
>
> 11\. Jensen, J. 1987. Linkage map of barley chromosome 4. p. 189-199.
> *In* S. Yasuda and T. Konishi (eds.) Barley Genetics V. Proc. Fifth
> Int. Barley Genet. Symp., Okayama. 1986. Sanyo Press Co., Okayama.
>
> 12\. Leonard, W.H. 1942. Inheritance of fertility in the lateral
> spikelets of barley. Genetics 27:299-316.
>
> 13\. Lundqvist, U. (Unpublished).
>
> 14\. Lundqvist, U. 1991. Coordinator\'s report: Ear morphology genes.
> Barley Genet. Newsl. 20:85-86.
>
> 15\. Lundqvist, U., and A. Lundqvist. 1988. Induced intermedium
> mutants in barley: origin, morphology and inheritance. Hereditas
> 108:13-26.
>
> 16\. Nötzel, H. 1952. Genetische Untersuchungen an röntgeninduzierten
> Gerstenmutanten. Kühn-Archiv 66:72-132.
>
> 17\. Nybom, N. 1954. Mutation types in barley. Acta Agric. Scand.
> 4:430-456.
>
> 18\. Persson, G. 1969. An attempt to find suitable genetic markers for
> dense ear loci in barley I. Hereditas 62:25-96.
>
> 19\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini.
> 2003. Integration of a barley (*Hordeum vulgare*) molecular linkage
> map with the position of genetic loci hosting 29 developmental
> mutants. Heredity 90:390-396.
>
> 20\. Robertson, D.W. 1929. Linkage studies in barley. Genetics
> 14:1-36.
>
> 21\. Robertson, D.W. 1933. Inheritance in barley. Genetics 18:148-158.
>
> 22\. Ubisch, G. von. 1916. Beitrag zu einer Faktorenanalyse von
> Gerste. Z. Indukt. Abstammungs. Vererbungsl. 17:120-152.
>
> 23\. Woodward, R.W. 1947. The I^h^, I, i allels in *Hordeum deficiens*
> genotypes of barley. J. Am. Soc. Agron. 39:474-482.
>
> 24\. Woodward, R.W. 1957. Linkages in barley. Agron. J. 49:28-32.

Prepared:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:200-201.

Revised:

> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:237-239.

Number range CHAPTERBGS 179, Hairy leaf sheath 1, *Hsh1*

Stock number: BGS 179

Locus name: Hairy leaf sheath 1

Locus symbol: *Hsh1*

Previous nomenclature and gene symbolization:

> Hairy leaf sheath = *Hs* (7).

Inheritance:

> Monofactorial dominant (4, 5, 6).
>
> Located in chromosome 4HL (6), over 8.7 cM proximal from the *yhd1*
> (yellow head 1) locus, and over 22.5 cM distal from the *mlo*
> (reaction to *Erysiphe graminis hordei*-o) locus (3, 5), in bin 4H-12
> about 1.1 cM proximal from RFLP marker HVM067 (2).

Description:

> Short hairs (1 to 3 mm) are scattered or in rows on leaf sheaths of
> the basal part of the plant. The density of hairs varies considerably
> among cultivars and with changes in growing conditions. With few
> exceptions, no hairs are observed on the sheath of upper leaves (4,
> 5). Heterozygotes and smooth awned cultivars seem to have fewer hairs.

Origin of mutant:

> Natural occurrence in a few cultivars and in some accessions of
> *Hordeum vulgare* subsp *spontaneum* (1, 5, 6).

Mutational events:

> *Hsh1.a* introduced into cultivated barley from its wild progenitor
> (5).

Mutant used for description and seed stocks:

> *Hsh1.a* in Kimugi (OUL012, GSHO 986) (5, 6); *Hsh1.a* from R.I.
> Wolfe\'s Multiple Dominant Marker Stock in Bowman (PI 483237)\*10
> (GSHO 2026).

References:

> 1\. Cauderon, A. 1951. Étude de I\'hérédité de trois couples de
> caractères morphologiques chez l\'orge cultivée. Ann. Amélior. Plant.
> 1:9-19.
>
> 2\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szues, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 3\. Hayashi, J., and R. Takahashi. 1986. Location of *hs* for hairy
> sheath and *yh* for yellow head character on barley chromosome 4.
> Barley Genet. Newsl. 16:24-27.
>
> 4\. Patterson, F.L., and R.G. Shands. 1957. Independent inheritance of
> four characters in barley. Agron. J. 49:218-219.
>
> 5\. Takahashi, R., and J. Hayashi. 1966. Inheritance and linkage
> studies in barley. II. Assignment of several new mutant genes to their
> respective linkage groups by the trisomic method of analysis. Ber.
> Ohara Inst. landw. Biol., Okayama Univ. 13:185-198.
>
> 6\. Takahashi, R., J. Hayashi, and S. Yasuda. 1957. \[Four genes in
> linkage in barley, which are inherited independently of the markers in
> the known seven linkage groups in barley.\] Nogaku Kenkyu 45:1-10.
> \[In Japanese.\]
>
> 7\. Takahashi, R., S. Yasuda, J. Yamamoto, and I. Shiojiri. 1953.
> \[Physiology and genetics of ear emergence in barley and wheat. II.
> Genic analysis of growth-habit in two spring barleys.\] Nogaku Kenkyu
> 40:157-168. \[In Japanese.\]

Prepared:

> R. Takahashi. 1972. BGN 2:184 as BGS 158.

Revised:

> J.D. Franckowiak and T. Konishi. 1997. BGN 26:202.
>
> J.D. Franckowiak. 2007. BGN 37:240-241.

BGS 185, Brachytic 5, *brh5*

Stock number: BGS 185

Locus name: Brachytic 5

Locus symbol: *brh5*

Previous nomenclature and gene symbolization:

> Brachytic-m = *brh.m* (3).

Inheritance:

> Monofactorial recessive (3, 5).
>
> Located in chromosome 4HS (4), near the *int-c* (intermedium spike-c)
> locus (4), about 13.0 cM proximal from SSR marker Bmac0310 near the
> boundary between bins 4H-06 and 4H-07 (1).

Description:

> Plants are about 3/4 normal height and awns are about 3/4 of normal
> length. Peduncles are less than 2/3 normal length. Seedling leaves of
> *brh5* plants are relatively short. The kernels of *brh5* plants are
> shorter than those of normal sibs and weigh about 30% less. Plants
> lodge easily and the grain yield is about 1/2 normal (1, 2).

Origin of mutant:

> A sodium azide induced mutant in Birgitta (NSGC 1870, NGB 1494, NGB
> 14667) (6).

Mutational events:

> *brh5.m* in Birgitta (17:18:2, DWS1010) (5, 6).

Mutant used for description and seed stocks:

> *brh5.m* in Birgitta (GSHO 1678); *brh5.m* in Bowman (PI 483237)\*7
> (GSHO 2001).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross
> derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
>
> 5\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 6\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak. 2002. BGN 32:100.

Revised:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:242.

BGS 186, Slender dwarf 3, *sld3*

Stock number: BGS 186

Locus name: Slender dwarf 3

Locus symbol: *sld3*

Previous nomenclature and gene symbolization:

> Anthocyanin-free = *ant-567* (5).
>
> Proanthocyanidin-free 17.567 = *ant17.567* (4).
>
> Slender dwarf e = *sld.e* (3).

Inheritance:

> Monofactorial recessive (1).
>
> Located in chromosome 4HS, based on linkage drag with the *int-c*
> (intermedium spike-c) locus (2).

Description:

> Plants show reduced vigor and are about 3/4 normal height. The number
> of spikelets per spike is about 3/4 that of normal sibs and kernels
> are slightly smaller. Rachis internodes can be slightly longer and
> grain yields are about 3/4 normal (1). The mutant gene *sld3.e* was
> isolated as a second mutant in the stock *ant17.567*
> (proanthocyanidin-free 17) (1). The Bowman backcross-derived line for
> *sld3.e* does not show a reduction in anthocyanin pigmentation or the
> large reduction in kernel size (1).

Origin of mutant:

> A sodium azide induced mutant isolated with *ant-567* in Manker (CIho
> 15549) (5).

Mutational events:

> *sld3.e* in *ant17.567* (DWS1050) (1).

Mutant used for description and seed stocks:

> *sld3.e* in Bowman/*ant17.567* (GSHO 2480); *sld3.e* in Bowman (PI
> 483237)\*7 (GSHO 1998).

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross
> derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
>
> 3\. Franckowiak, J.D. 1999. Coordinator's report: Semidwarf genes.
> Barley Genet. Newsl. 29:74-79.
>
> 4\. Jende-Strid, B. 1988. Coordinator\'s report: Anthocyanin genes.
> Stock list of ant mutants kept at the Carlsberg Laboratory. Barley
> Genet. Newsl. 18:74-79.
>
> 5\. Ullrich, S.E. 1983. (Personal communications).

Prepared:

> J.D. Franckowiak. 2002. BGN 32:101.

Revised:

> J.D. Franckowiak. 2007. BGN 37:243.

Number range CHAPTERBGS 187, Brachytic 9, *brh9*

Stock number: BGS 187

Locus name: Brachytic 9

Locus symbol: *brh9*

Previous nomenclature and gene symbolization:

> Brachytic-k = *brh.k* (3).

Inheritance:

> Monofactorial recessive (3, 4).
>
> Located in chromosome 4HS (1), about 11.7 cM distal from SRR marker
> Bmac0310 in bin 4H-06 (1).

Description:

> Culms and peduncles are about 3/4 normal length and awns are 3/4 to
> 5/6 of normal length. Rachis internodes are slightly shorter than
> those of normal sibs. Seedling leaves of *brh9* plants are relatively
> short. The kernels of *brh9* plants are shorter and kernel weight are
> about 20% lower than those of normal sibs. Grain yields averaged less
> than 1/2 normal (1, 2); however, plants appeared nearly normal when
> grown in Dundee, Scotland (2). The *brh9.k* gene was found to
> non-allelic at *brh5* locus, which is located in the same region of
> 4HS (1).

Origin of mutant:

> A sodium azide induced mutant in Birgitta (NSGC 1870, NGB 1494, NGB
> 14667) (5).

Mutational events:

> *brh9.k* in Birgitta (17:14:4, DWS1006) (4, 5).

Mutant used for description and seed stocks:

> *brh9.k* in Birgitta (GSHO 1676); *brh9.k* in Bowman (PI 483237)\*6
> (GSHO 2170).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:244.

Number range CHAPTERBGS 203, Black lemma and pericarp 1, *Blp1*

Stock number: BGS 203

Locus name: Black lemma and pericarp 1

Locus symbol: *Blp1*

Previous nomenclature and gene symbolization:

> Black lemma and caryopsis = *B* (6).
>
> Black pericarp = *Bk* (1).
>
> Black lemma and pericarp = *B* (7).

Inheritance:

> Monofactorial dominant (1, 4, 6).
>
> Located in chromosome 1HL \[5L\] (3, 5), about 16.0 cM proximal from
> the *trd1* (third outer glume 1) locus (3), in bin 1H-13 about 8.8 cM
> proximal from RFLP marker ABC261 (2).

Description:

> Black pigmentation of the lemma and pericarp develops slightly before
> maturation of the spike. Pigmented organs may include all parts of the
> spike, awns, the upper portion of the stem, and upper leaves. The
> intensity of pigmentation associated with each of the dominant alleles
> at the *Blp1* locus is characteristic of that allele, and is
> relatively stable over environments (7). Black seed is produced by
> melanin-like pigment in the pericarp (1). Woodward (7) reports that
> the dominance ranking of alleles at the *Blp1* locus is related to the
> intensity of black pigmentation they confer, with the *Blp1.b* (*B*)
> allele conferring extreme black pigmentation. The *Blp1.mb* (*B^mb^*)
> allele is associated with medium black and a reduced distribution
> pattern; and the *Blp1.g* (*B^g^*) allele is associated with light
> black or gray coloration (7, 8).

Origin of mutant:

> Natural occurrence in several cultivars (6, 7).

Mutational events:

> *Blp1.b* (*B*) in *Hordeum distichon* var *nigrinudum* No 1 (7);
> *Blp1.mb* (*B^mb^*) in CIho 2970 (GSHO 226) (7); *Blp1.g* (*B^g^*) in
> Blackhull (CIho 878, GSHO 199) and Black Smyrna (CIho 191, GSHO 222)
> (7).

Mutant used for description and seed stocks:

> *Blp1.b* in *Hordeum distichon* var *nigrinudum* No 1 (GSHO 988);
> *Blp1.b* from R.I. Wolfe\'s Multiple Dominant Marker Stock (GSHO 1580)
> in Bowman (PI 483237)\*8 (GSHO 2054).

References:

> 1\. Buckley, G.F.H. 1930. Inheritance in barley with special reference
> to the color of the caryopsis and lemma. Sci. Agric. 10:460-492.
>
> 2\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szues, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 3\. Ivanova, K.V. 1937. A new character in barley \"third outer
> glume\" --- Its inheritance and linkage with color of the flowering
> glumes. Bull. Appl. Bot., Genet., & Pl. Breed. II. 7:339-353.
>
> 4\. Robertson, D.W. 1929. Linkage studies in barley. Genetics 14:1-36.
>
> 5\. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A
> summary of linkage studies in cultivated barley, *Hordeum* species:
> Supplement III, 1954-1963. Crop Sci. 5:33-43.
>
> 6\. Tschermak, E. von. 1901. Über Züchtung neuer Getreiderassen
> mittelst künstlicher Kreuzung. Kritisch-historische Betrachtungen.
> Zeitschrift für das landwirtschaftliche Versuchswesen Oesterreich
> 4:1029-1060.
>
> 7\. Woodward, R.W. 1941. Inheritance of melanin-like pigment in the
> glumes and caryopses of barley. J. Agric. Res. 63:21-28.
>
> 8\. Woodward, R.W. 1942. Linkage relationships between the
> allelomorphic series, B, B^mb^, B^g^, and A~t~a~t~ factors in barley.
> J. Amer. Soc. Agron. 34:659-661.

Prepared:

> T.E. Haus and T. Tsuchiya. 1971. BGN 1:148.

Revised:

> J.D. Franckowiak and U. Lundqvist. 1997. BGN 26:209.
>
> J.D. Franckowiak. 2007: BGN 37:245-246.

Number range CHAPTERBGS 214, Early maturity 8, *eam8*

Stock number: BGS 214

Locus name: Early maturity 8

Locus symbol: *eam8*

Previous nomenclature and gene symbolization:

> Early heading k = *ea~k~* (26).
>
> Early maturity-a = *ea-a* (8, 21).
>
> Praematurum-a = *mat-a* (3, 8, 13, 14, 26).
>
> Erectoides-o = *ert-o* (8, 18).

Inheritance:

> Monofactorial recessive (3, 7).
>
> Located in chromosome 1HL \[5L\] (21), about 11.4 cM distal from the
> *trd1* (third outer glume 1) locus and 20.9 cM distal from the *Blp1*
> (black lemma and pericarp 1) locus (21, 24).

Description:

> Early heading is associated with decreased culm length, spike length,
> kernels per spike, and grain yield (16, 24, 26). When grown in the
> fall at Kurashiki, Japan, plants head about 20 days earlier than the
> standard mid-season cultivar, Akashinriki, because they are day-length
> neutral or photoperiod insensitive (26). Day-length neutrality is
> observed in early heading mutants isolated from spring barley in
> Sweden (2, 9). Under controlled environmental conditions, number of
> days to heading does not change as photoperiod is altered (2, 10). All
> *mat-a* induced mutants are characterized by yellowish-green seedlings
> at an early stage of development under controlled environmental
> conditions (1). Other *eam8* mutants show a similar response by
> becoming yellow green under specific growing conditions, 8 to 12 hours
> of illumination at low temperatures (below 10°C) plus high temperature
> (20°C or higher) during the dark period (5, 21, 24). The color change
> is caused by photothermal stress, which increases the zeaxanthin
> content at the expense of chlorophyll and other pigments (5, 19, 24).
> The mutant stock *mat-a.8* was released as the cultivar Mari (9, 11).
> When grown under 12 h days, the levels of phytochrome B (*phyB*)
> decreases in light-grown BMDR-1 plants, containing an allele at the
> *eam8* locus, compared to normal plants (12). The instability of
> *phyB* content was reported to be responsible for photoperiod
> insensitivity of *eam8* mutants (12). Under continuous light and with
> far-red light treatment for seven days, most differences in heading
> date between BMDR-1 and BMDR-8 (Shabet) are eliminated (19).

Origin of mutant:

> An X-ray induced mutant in Maja (PI 184884, NGB 8815) (6, 7, 10);
> natural occurrence in Kinai 5 (OUJ493) and Kagoshima Gold (OUJ219)
> (21, 25).

Mutational events:

> *ert-o.16* (NGB 112618) in Maja (6); *eam8.k* in Kagoshima Gold, Kinai
> 5 (CIho 11560), and Kindoku (OUU332) (21, 22, 25); *mat-a.8* (NGB
> 1491, NGB 4694, NGB 14656, NGB 110008), *-a.11* (NGB 110011), *-a.12*
> (NGB 110012) in Bonus (PI 189763) (7, 14); *mat-a.27* (NGB 110027),
> *-a.45* (NGB 110045), *-a.46* (NGB 110046), *-a.48* (NGB 110048),
> *-a.62* (NGB 110062) in Bonus, *-a.110* (NGB 110110), *-a.130* (NGB
> 110130), *-a.153* (NGB 110153), *-a.221* (NGB 110221), *-a.238* (NGB
> 110238), *-a.255* (NGB 110255), *-a.272* (NGB 110272), *-a.274* (NGB
> 110274), *-a.287* (NGB 110287), *-a.289*(NGB 110289), *-a.294* (NGB
> 110294), *-a.325* (NGB 110325), *-a.338* (NGB 110338), *-a.370* (NGB
> 110370), *-a.384* (NGB 110384), *-a.390* (NGB 110390),*-a.404* (NGB
> 110404), *-a.406* (NGB 110406), *-a.407* (NGB 110407) in Foma (CIho
> 11333), *-a.509* (NGB 110509), *-a.641* (NGB 110641), *-a.703* (NGB
> 110703), *-a.733* (NGB 110733),in Kristina (NGB 1500), *-a.753* (NGB
> 110753), *-a.796* (NGB 110796), *-a.797* (NGB 110797), *-a.813* (NGB
> 110813), *-a.832* (NGB 110832), *-a.903* (NGB 116858), *-a.909* (NGB
> 117440), *-a.921* (NGB 117452) in Bonus, *-a.961* (NGB 117492),
> *-a.970* (NGB 117501), *-a.976* (NGB 117507), *-a.984* (NGB 117515),
> *-a.1011* (NGB 117542), in Sv 79353, *-a.1032* (NGB 117563), *-a.1033*
> (NGB 117564), *-a.1034* (NGB 117565), *-a.1035* (NGB 117566),
> *-a.1036* (NGB 117567), *-a.1037* (NGB 117568), *-a.1039* (NGB
> 117570), *-a.1040* (NGB 117571), *-a.1041* (NGB 117572), *-a.1042*
> (NGB 117573), *-a.1043* (NGB 117574), *-a.1044* (NGB 117575),
> *-a.1045* (NGB 117576), *-a.1046* (NGB 117577), *-a.1047* (NGB
> 117578), *-a.1048* (NGB 117579), *-a.1049* (NGB 117580) in Sv Vg74233
> (13); *mat-a.1050* (NGB 117581), *-a.1051* (NGB 117582), *-a.1052*
> (NGB 117583), *-a.1053* (NGB 117584), *-a.1054* (NGB 117585),
> *-a.1055* (NGB 117586), *-a.1056* (NGB 117587), *-a.1057* (NGB
> 117588), *-a.1058* (NGB 117589), *-a.1059* (NGB 117590), *-a.1060*
> (NGB 117591), *-a.1061* (NGB 117592), *-a.1062* (NGB 117593),
> *-a.1063* (NGB 117594), *-a.1064* (NGB 117595), *-a.1065* (NGB
> 117596), *-a.1067* (NGB 117598), *-a.1069* (NGB 117600), *-a.1070*
> (NGB 117601), *-a.1071* (NGB 117602), *-a.1072* (NGB 117603),
> *-a.1073* (NGB 117604), *-a.1074* (NGB 117605) in Sv Vg74233 (15);
> *eam8.q* (Ea8), *eam8.r* (Ea9), *eam8.s* (Ea10), *eam8.t* (Ea16) in
> Chikurin Ibaraki 1 (OUJ069, CIho 7370, GSHO 783) (23); *eam8.u* (Mut
> 2571) in Donaria (PI 161974) (5, 17); *eam8.v* in Munsing (CIho 6009,
> GSHO 636) (4, 19, 20); *eam8.w* in Early Russian (CIho 13839) (4),
> BMDR-1 (*eam8.y)* from the original mutant in a dwarf line backcrossed
> to Shabet (CIho 13827)
> ([19](http://www.pubmedcentral.nih.gov/articlerender.fcgi?&artid=32084#B10%23B10)).

Mutant used for description and seed stocks:

> *eam8.k* in Kinai 5 (OUJ439, GSHO 765); *ert-o.16* in Maja (GSHO 489);
> *eam8.k* in Bonus\*5 (25); *mat-a.8* in Tochigi Golden\*5 (25);
> *eam8.u* in Munsing/7\*Titan (CIho 16526) (20); *eam8.k* in Bowman (PI
> 483237)\*7 (GSHO 2063); *ert-o.16* in Bowman\*7 (GSHO 2064).

References:

> 1\. Dormling, I., and Å. Gustafsson. 1969. Phytotron cultivation of
> early barley mutants. Theor. Appl. Genet. 39:51-61.
>
> 2\. Dormling, I., Å. Gustafsson, H.R. Jung, and D. von Wettstein.
> 1966. Phytotron cultivation of Svalöf\'s Bonus barley and its mutant
> Svalöf\'s Mari. Hereditas 56:221-237.
>
> 3\. Favret, E.A., and J.H. Frecha. 1967. Allelism test of genes for
> earliness. Barley Newsl. 10:121.
>
> 4\. Gallagher, L.W. (Unpublished).
>
> 5\. Gallagher, L.W., A.A. Hafez, S.S. Goyal, and D.W. Rains. 1994.
> Nuclear mutations affecting chloroplastic pigments of
> photoperiod-insensitive barley. Plant Breed. 113:65-70.
>
> 6\. Gustafsson, Å. 1947. Mutations in agricultural plants. Hereditas
> 33:1-100.
>
> 7\. Gustafsson, Å., A. Hagberg, and U. Lundqvist. 1960. The induction
> of early mutants in Bonus barley. Hereditas 46:675-699.
>
> 8\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 9\. Gustafsson, Å., A. Hagberg, G. Persson and K. Wiklund. 1971.
> Induced mutations and barley improvement. Theor. Appl. Genet.
> 41:239-248.
>
> 10\. Gustafsson, Å., and U. Lundqvist. 1976. Controlled environment
> and short-day tolerance in barley mutants. p. 45-53. *In* Induced
> Mutants in Cross-breeding. Proc. Advisory Group, Vienna. 1975. Int.
> Atomic Energy Agency, Vienna.
>
> 11\. Hagberg, A. 1961. \[Svalöfs original Mari barley.\] Aktuellt från
> Svalöf. Allmänna Svenska Utsädesaktiebolaget. p. 13-16. \[In
> Swedish.\]
>
> 12\. Hanumappa, M., L.H. Pratt, M.-M. Cordonnier-Pratt, and G.F.
> Deitzer.^.^1999. A photoperiod-insensitive barley line contains a
> light-labile phytochrome
> B[.](http://www.pubmedcentral.nih.gov/articlerender.fcgi?&artid=32084#FN1%23FN1)
> Plant Physiol. 119:1033-1040.
>
> 13\. Lundqvist, U. 1991. Swedish mutation research in barley with
> plant breeding aspects. A historical review. p. 135-148. *In* Plant
> Mutation Breeding for Crop Improvement. Proc. Int. Symp. Vienna, 1990.
> Int. Atomic Energy Agency, Vienna.
>
> 14\. Lundqvist, U. 1992. Coordinator\'s report: Earliness genes.
> Barley Genet. Newsl. 21:127-129.
>
> 15\. Lundqvist, U. (Unpublished).
>
> 16\. Mellish, D.R., B.L. Harvey, and B.G. Rossnagel. 1978. The effect
> of a gene for earliness in 2-row barley. Barley Newsl. 22:76.
>
> 17\. Mettin, D. 1961. Mutationsversuche an Kulturpflanzen. XII. Über
> das genetische Verhalten von frühreifen Gerstenmutanten. Züchter
> 31:83-89.
>
> 18\. Persson, G., and A. Hagberg. 1969. Induced variation in a
> quantitative character in barley. Morphology and cytogenetics of
> *erectoides* mutants. Hereditas 61:115-178.
>
> 19\. Principe, J.M., W.R. Hruschka, B. Thomas, and G.F. Deitzer. 1992.
> Protein differences between two isogenic cultivars of barley (*Hordeum
> vulgare* L.) that differ in sensitivity to photoperiod and far-red
> light. Plant Physiol. 98:1444-1450.
>
> 20\. Smail, V.W., R.F. Eslick, and E.A. Hockett. 1986. Isogenic
> heading date effects on yield component development in \'Titan\'
> barley. Crop Sci. 26:1023-1029.
>
> 21\. Takahashi, R., and S. Yasuda. 1971. Genetics of earliness and
> growth habit in barley. p. 388-408. *In* R.A. Nilan (ed.) Barley
> Genetics II. Proc. Second Int. Barley Genet. Symp., Pullman, WA, 1969.
> Washington State Univ. Press, Pullman.
>
> 22\. Takahashi, R., S. Yasuda, J. Hayashi, T. Fukuyama, I. Moriya, and
> T. Konishi. 1983. Catalogue of barley germplasm preserved in Okayama
> University. Inst. Agric. Biol. Sci., Okayama Univ., Kurashiki, Japan.
> 217 p.
>
> 23\. Ukai, Y., and A. Yamashita. 1981. Early mutants of barley induced
> by ionizing radiation and chemicals. p. 846-854. *In* M.J.C. Asher,
> R.P. Ellis, A.M. Hayter, and R.N.H. Whitehouse (eds.) Barley Genetics
> IV. Proc. Fourth Int. Barley Genet. Symp., Edinburgh. Edinburgh Univ.
> Press, Edinburgh.
>
> 24\. Yasuda, S. 1977. Linkage of the earliness gene *ea~k~* and its
> pleiotropic effects under different growth conditions. Ber. Ohara
> Inst. landw. Biol., Okayama Univ. 17:15-28.
>
> 25\. Yasuda, S. 1978. Effects of the very early gene, *ea~k~*, on
> yield and its components in barley. BGN 8:125-127.
>
> 26\. Yasuda, S., T. Konishi, and H. Shimoyama. 1965. \[Varietal
> difference in yellowing of barleys under a certain controlled
> condition of temperature and photoperiod, and its mode of
> inheritance.\] Nogaku Kenkyu 51:53-65. \[In Japanese.\]

Prepared:

> S. Yasuda. 1972. BGN 2:198.

Revised:

> J.D. Franckowiak, U. Lundqvist, T. Konishi, and L.W. Gallagher. 1997.
> BGN 26:213-215.
>
> J.D. Franckowiak and U. Lundqvist. 2007. BGN 37:247-250.
>
> Number range CHAPTERBGS 222, Necrotic leaf spot 1, *nec1*

Stock number: BGS 222

Locus name: Necrotic leaf spot 1

Locus symbol: *nec1*

Previous nomenclature and gene symbolization:

> Mutant no. 10 (2).
>
> Parkland spot = *sp,,b* (1).

Inheritance:

> Monofactorial recessive (2, 4).
>
> Located in chromosome 1HL \[5L\] (1, 2, 4), near the centromere (1),
> about 34.5 cM proximal from the *wst5* (white streak 5) locus (3, 5),
> about 10.0 cM distal from the *msg1* (male sterile genetic 1) locus
> (4, 6), in bin 5H-09 near EST marker BF630384 (7).

Description:

> Small black-brown spots develop on all light-exposed parts of the
> plant starting near the leaf tip at the three-leaf stage (1, 2). The
> spots are oval (the longest dimension is parallel to the leaf veins)
> and generally less than 1 to 2 mm in size. The spots are concentrated
> in awn and the most distal parts of the leaf blade, but may occur on
> all plant parts (2, 4). The *nec1* locus is an orthologue of
> *Arabidopsis* necrotic mutant *HLM1* that encodes the cyclic
> nucleotide-gated ion channel 4 (7).

Origin of mutant:

> A mutant induced by combined treatment with gamma-rays and diethyl
> sulfate of Carlsberg II (CIho 10114, NGB 5085) (2).

Mutational events:

> *nec1.a* in Carlsberg II (Mutant no 10) (2, 3); *sp,,b* (GSHO 1284) in
> Parkland (CIho 10001) (1, 4); a mutant in Morex (CIho 15773) (6);
> FN085 and FN370 in Steptoe (CIho 15229) (7); FN338 in Morex (CIho
> 15773) (7).

Mutant used for description and seed stocks:

> *nec1.a* in Carlsberg II (GSHO 989); *nec1.a* from R.I. Wolfe\'s
> Chromosome 5 Marker Stock in Bowman (PI 483237)\*7 (GSHO 2052).

References:

> 1\. Fedak, G., T. Tsuchiya, and S.B. Helgason. 1972. Use of
> monotelotrisomics for linkage mapping in barley. Can. J. Genet. Cytol.
> 14:949-957.
>
> 2\. Jensen, J. 1971. Mapping of 10 mutant genes for necrotic spotting
> in barley by means of translocation. p. 213-219. *In* R.A. Nilan (ed.)
> Barley Genetics II. Proc. Second Int. Barley Genet. Symp., Pullman,
> WA, 1969. Washington State Univ. Press, Pullman.
>
> 3\. Jensen, J. 1992. Coordinator\'s report: Chromosome 5. Barley
> Genet. Newsl. 21:89-92.
>
> 4\. Jensen, J., and J.H. Jørgensen. 1973. Locating some genes on
> barley chromosome 5. Barley Genet. Newsl. 3:25-27.
>
> 5\. Nielsen, G., H. Johansen, and J. Jensen. 1983. Localization on
> barley chromosome 5 of the locus *Pgd2* coding for phosphogluconate
> dehydrogenase. Barley Genet. Newsl. 13:57-59.
>
> 6\. Ramage, T., and J.L.A. Eckhoff. 1985. Assignment of mutants in
> Morex to chromosomes. Barley Genet. Newsl. 15:22-25.
>
> 7\. Rostoks, N., D. Schmierer, S. Mudie, T. Drader, R. Brueggeman, D.
> Caldwell, R. Waugh, and A. Kleinhofs. 2006. Barley necrotic locus
> *nec1* encodes the cyclic nucleotide-gated ion channel 4 homologous to
> the *Arabidopsis Hlm1.* Mol. Gen. Genomics 275:159-168.

Prepared:

> J. Jensen. 1981. BGN 11:101.

Revised:

> J.D. Franckowiak. 1997. BGN 26:220.
>
> J.D. Franckowiak. 2007. BGN 37:251-252.

Number range CHAPTERBGS 253, Uniculm 2, *cul2*

Stock number: BGS 253

Locus name: Uniculm 2

Locus symbol: *cul2*

Previous nomenclature and gene symbolization:

> Uniculm 2 = *uc2* (8).

Inheritance:

> Monofactorial recessive (8).
>
> Located in chromosome 6HL (4, 6), about 1.3 cM distal from the *gsh4*
> (glossy sheath 4) locus (3, 5), about 11.4 cM from the *msg36* (male
> sterile genetic 36) locus (3, 5), about 2.2 cM proximal from the
> *rob1* (orange lemma 1) locus (3, 4, 5), about 8.8 cM from RFLP
> markers cMWG679 and ABG458 (1), and about 6.2 cM from AFLP marker
> E4343-10 in subgroup 54 of the Proctor/Nudinka map (7).

Description:

> The *cul2* plants have a single elongated culm (stem), the stem is
> much greater in diameter than normal, and plants are usually earlier
> than normal (8). The *cul2* plants initiate vegetative axillary
> meristems, but tillers fail to develop (1). Irregular placement of
> some spikelets and male fertility in lateral spikelets occur in the
> original stock (5) and in the Bowman backcross-derived line (1). Yield
> of uniculm plants is not restored when grown under high plant
> populations (2). Double mutant combinations with most other mutants
> that affect tiller number resulted in a uniculm vegetative phenotype
> (1).

Origin of mutant:

> A thermal neutron induced mutant in Kindred (CIho 6969) (8).

Mutational events:

> *cul2.b* in Kindred (GBC379) (5), *cul2.k* (*unc^k^*) in an unknown
> cultivar from the Max-Planck-Institut für Züchtungsforschung (7).

Mutant used for description and seed stocks:

> *cul2.b* in Kindred (GSHO 531, CIho 115530); *cul2.b* in Bowman (PI
> 483237)\*4 (GSHO 2074); *cul2.b* plus *rob1.a* from sel 79Cal in
> Bowman\*8 (GSHO 2075).

References:

> 1\. Babb, S., and G.J. Muehlbauer. 2003. Genetic and morphological
> characterization of the barley uniculm2 (*cul2*) mutant. Theor. Appl.
> Genet. 106:846--857.
>
> 2\. Dofing, S.M. 1996. Near-isogenic analysis of uniculm and
> conventional-tillering barley lines. p. 617-619. *In* A.E. Slinkard,
> G.J. Scoles, and B.G. Rossnagel (eds.) Proc. Fifth Int. Oat Conf. &
> Seventh Int. Barley Genet. Symp., Saskatoon. Univ. of Saskatchewan,
> Saskatoon.
>
> 3\. Falk, D.E., M.J. Swartz, and K.J. Kasha. 1980. Linkage data with
> genes near the centromere of barley chromosome 6. Barley Genet. Newsl.
> 10:13-16.
>
> 4\. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984.
> Inheritance and linkage studies in barley. VI. Ten mutant genes
> located on chromosomes 1 to 7, except 3. Ber. Ohara Inst. landw.
> Biol., Okayama Univ. 18:227-250.
>
> 5\. Kasha, K.G., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with
> genes on chromosome 6. Barley Genet. Newsl. 8:61-65.
>
> 6\. Kirby, E.J. 1973. Effect of temperature on ear abnormalities in
> uniculm barley. J. Exp. Bot. 24:935-947.
>
> 7\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.
>
> 8\. Shands, R.G. 1963. Inheritance and linkage of orange lemma and
> uniculm characters. Barley Newsl. 6:35-36.

Prepared:

> C.R. Burnham. 1971. BGN 1:156.

Revised:

> J.D. Franckowiak. 1997. BGN 26:234.
>
> J.D. Franckowiak. 2007. BGN 37:253-254.

Number range CHAPTERBGS 254, Orange lemma 1, *rob1*

Stock number: BGS 254

Locus name: Orange lemma 1

Locus symbol: *rob1*

Previous nomenclature and gene symbolization:

> Orange lemma = *pl* (14).
>
> Orange lemma = *br* (1, 2).
>
> Orange lemma = *o* (15).
>
> Robiginosum-o = *rob-o* (6).

Inheritance:

> Monofactorial recessive (1, 2, 14, 15).
>
> Located in chromosome 6HS (4, 5, 17, 18), about 10.8 cM proximal from
> the *msg36* (male sterile genetic 36) locus (5, 9), and about 2.2 cM
> distal from the *cul2* (uniculm 2) locus (5, 7, 9), in bin 6H-06 near
> RFLP marker HVM031 (3).

Description:

> The lemma, palea, and rachis have an orange pigmentation that is
> present in immature spikes, can be observed at heading, and is
> retained in mature grain and spikes (2, 15). The orange pigmentation
> is visible at the base of sheath of seedlings and in exposed nodes
> after jointing. Internodes have a layer of orange tissue and stems
> have an orange color as the straw dries. The mutant stock for *rob1.f*
> (OUM189) has a lighter orange lemma color than that in other mutants
> at the *rob1* locus (10). The Bowman backcross-derived line with the
> *rob1* gene had slightly lower acid-detergent lignin (ADL) content
> than Bowman (13), but it was also more susceptible to common root rot,
> caused by *Bipolaris sorokiniana* (11).

Origin of mutant:

> A spontaneous mutant in CIho 5649 (15).

Mutational events:

> *rob1.a* in CIho 5649 (GBC340, GSHO 707) (8, 15); *rob1.b* (OUM185),
> *rob1.c* (OUM186), *rob1.d* (OUM187), *rob1.e* (OUM188), *rob1.f*
> (OUM189) in Akashinriki (OUJ659, PI 467400) (10); *rob1.1* (NGB
> 115071, NGB 119367)*, rob1.2* (NGB 115072, NGB 119368) in Bonus (PI
> 189763), *rob1.3* (NGB 115073, NGB 119369), *rob1.4* (NGB 115074, NGB
> 119370)*, rob1.5* (NGB 115075, NGB 119371), *rob1.6* (NGB 115076,
> 119372) in Foma (CIho 11333), rob1.7 (NGB 115077, NGB 119373) in
> Kristina (NGB 1500) (12); *rob1.g* (200A12/8/2) from Emir (CIho 11790)
> isolated following a cross to *Hordeum bulbosum* (16).

Mutant used for description and seed stocks:

> *rob1.a* in CIho 5649 (GSHO 707); *rob1.a* in Bowman (PI 483237)\*8
> (GSHO 2069).

References:

> 1\. Bauman, A. 1926. Barley with orange lemmas. Bull. Appl. Bot. & Pl.
> Breed. 16:181-186.
>
> 2\. Buckley, G.F.H. 1930. Inheritance in barley with special reference
> to the color of caryopsis and lemma. Sci. Agric. 10:460-492.
>
> 3\. Costa, J.M., A. Corey, M. Hayes, C. Jobet, A. Kleinhofs, A.
> Kopisch-Obusch, S.F. Kramer, D. Kudrna, M. Li, O. Piera-Lizaragu, K.
> Sato, P. Szues, T. Toojinda, M.I. Vales, and R.I. Wolfe. 2001.
> Molecular mapping of the Oregon Wolfe Barleys: a phenotypically
> polymorphic doubled-haploid population. Theor. Appl. Genet.
> 103:415-424.
>
> 4\. Falk, D.E. 1994. Creation of a marked telo 6S trisomic for
> chromosome 6. Barley Genet. Newsl. 23:32.
>
> 5\. Falk, D.E., M.J. Swartz, and K.J. Kasha. 1980. Linkage data with
> genes near the centromere of barley chromosome 6. Barley Genet. Newsl.
> 10:13-16.
>
> 6\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 7\. Hayashi, J., T. Konishi, I. Moriya, and R. Takahashi. 1984.
> Inheritance and linkage studies in barley. VI. Ten mutant genes
> located on chromosomes 1 to 7, except 3. Ber. Ohara Inst. landw.
> Biol., Okayama Univ. 18:227-250.
>
> 8\. Ivanova, K.V. 1937. A new character in barley \"third outer
> glume\" --- Its inheritance and linkage with color of the flowering
> glumes. Bull. Appl. Bot., Genet. & Pl. Breed. II. 7:339-353.
>
> 9\. Kasha, K.G., D.E. Falk, and A. Ho-Tsai. 1978. Linkage data with
> genes on chromosome 6. Barley Genet. Newsl. 8:61-65.
>
> 10\. Konishi, T. (Unpublished).
>
> 11\. Kutcher, H.R., K.L. Bailey, B.G. Rossnagel, and J.D. Franckowiak.
> 1996. Linked morphological and molecular markers associated with
> common root rot reaction in barley. Can. J. Plant Sci. 76:879-883.
>
> 12\. Lundqvist. U. (Unpublished).
>
> 13\. Meyer, D.W., J.D. Franckowiak, and R.D. Nudell. 2006. Forage
> quality of barley hay. Agronomy Abstracts 2006.
>
> 14\. Miyake, K., and Y. Imai. 1922. \[Genetic studies in barley. 1.\]
> Bot. Mag., Tokyo 36:25-38. \[In Japanese.\]
>
> 15\. Myler, J.L., and E.H. Stanford. 1942. Color inheritance in
> barley. J. Am. Soc. Agron. 34:427-436.
>
> 16\. Pickering, R.A. 2003. (Personal communications).
>
> 17\. Ramage, R.T., C.R. Burnham, and A. Hagberg. 1961. A summary of
> translocation studies in barley. Crop Sci. 1:277-279.
>
> 18\. Shahla, A., J.W. Shim, and T. Tsuchiya. 1983. Association of the
> gene *o* for orange lemma with the short arm of chromosome 6 (6S) in
> barley. BGN 13:83-84.

Prepared:

> C.R. Burnham. 1971. BGN 1:157.

Revised:

> J.D. Franckowiak, T. Konishi, and U. Lundqvist. 1997. BGN 26:235-236.
>
> J.D. Franckowiak and U. Lundqvist. 2007. BGN 37:255-256.

Number range CHAPTERNumber range CHAPTERBGS 266, Erectoides-e, *ert-e*

Stock number: BGS 266

Locus name: Erectoides-e

Locus symbol: *ert-e*

Previous nomenclature and gene symbolization:

> Erectoides-17 = *ert-17* (2).
>
> Dense spike = *la* (4).
>
> Dense spike 9 = *l9* (4).

Inheritance:

> Monofactorial recessive (2, 4, 8).
>
> Located in chromosome 6HL (3, 7, 8), about 27.2 cM distal from the
> *xnt5* (xantha seedling 5) locus (5), over 26.9 cM distal from the
> *Aat2* (aspartate aminotransferase 2) locus (11).

Description:

> Spikes are very compact with rachis internode length values from 1.2
> to 1.5 mm. Plants are about 2/3 normal height. Partial fertility and
> reduced vigor are noted among *ert-e* mutants. The peduncle is very
> short and spikes often emerge from the side of the flag sheath (7, 9).
> A large deficiency of mutant plants is frequently noted in segregating
> populations (7). Spike density decreases greatly when plants are
> treated with GA~3~ as the flag leaf emerges (10). The mutant
> *ert-e.17* is allelic to mutant *dsp9.i* (dense spike 9, see BGS 258)
> (1).

Origin of mutant:

> An X-ray induced mutant in Bonus (PI 189763) (2).

Mutational events:

> *ert-e.17* (NGB 112619 ), *-e.65* (NGB 112664) in Bonus (2);
> *ert-e.94* (NGB 112693), *-e.143* (NGB 112742) in Bonus, *-e.331* (NGB
> 112846), *-e.396* (NGB 114150) in Foma (CIho 11333) (9); *dsp9.i*
> (OUM113) in Akashinriki (4); *dsp9.j* (OUM106), *dsp9.k* (OUM107),
> *dsp9.l* (OUM115), *dsp9.m* (OUM118) in Akashinriki (6).

Mutant used for description and seed stocks:

> *ert-e.17* in Bonus (GSHO 477); *ert-e.17* in Bowman (PI 483237)\*6
> (GSHO 2091); *dsp9.i* in Akashinriki (GSHO 1774); *dsp9.i* in Bowman
> (PI 483237)\*7 (GSHO 2090).

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Hagberg, A., Å. Gustafsson, and L. Ehrenberg. 1958. Sparsely
> contra densely ionizing radiations and the origin of erectoid mutants
> in barley. Hereditas 44:523-530.
>
> 3\. Hagberg, A., G. Persson, and A. Wiberg. 1963. Induced mutations in
> the improvement of self-pollinated crops. p. 105-124. *In* E. Åkerberg
> and A. Hagberg (eds.) Recent Plant Breeding Research. Svalöf
> 1946-1961. Almqvist & Wiksell, Stockholm.
>
> 4\. Konishi, T. 1973. Genetic analyses of EMS-induced mutants in
> barley. Barley Genet. Newsl. 3:28-31.
>
> 5\. Konishi, T. 1978. New linkage data on chromosome 6 of barley.
> Barley Genet. Newsl. 8:71-72.
>
> 6\. Konishi, T. (Unpublished).
>
> 7\. Persson, G. 1969. An attempt to find suitable genetic markers for
> the dense ear loci in barley I. Hereditas 62:25-96.
>
> 8\. Persson, G., and A. Hagberg. 1962. Linkage studies with the
> erectoides loci. Barley Newsl. 5:46-47.
>
> 9\. Persson, G., and A. Hagberg. 1969. Induced variation in a
> quantitative character in barley. Morphology and cytogenetics of
> *erectoides* mutants. Hereditas 61:115-178.
>
> 10\. Stoy, V., and A. Hagberg. 1967. Effects of growth regulators on
> ear density mutants in barley. Hereditas 58:359-384.
>
> 11\. Yoshimi, R., and T. Konishi. 1995. Linkage analysis of several
> isozyme loci in barley. Barley Genet. Newsl. 24:35-37.

Prepared:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:246.

Revised as BGS 258:

> T. Konishi and J.D. Franckowiak. 1997. BGS 258, Dense spike 9, *dsp9*.
> BGN 26:239.

Revised:

> J.D. Franckowiak and U. Lundqvist. 2007. BGN 37:257-258.

Number range CHAPTERBGS 306, Variegated 1, *var1*

Stock number: BGS 306

Locus name: Variegated 1

Locus symbol: *var1*

Previous nomenclature and gene symbolization:

> Variegated = *va* (4).

Inheritance:

> Monofactorial recessive (4).
>
> Located in chromosome 5HL \[7L\] (4), about 4.6 cM proximal from the
> *raw1* (smooth awn 1) locus (3. 4), in bin 5H-09 about 29.2 cM
> proximal from the *Rph9* (reaction to *Puccinia hordei* 9) locus (1).

Description:

> Narrow white stripes develop on young leaves, but they are not as well
> defined than those of white streak 7 (*wst7*). White stripes are
> visible on the foliage and stems of older plants (3). When sown in
> plots, selections homozygous for the *var1.a* gene have a whitish cast
> until heading (2). The Bowman backcross-derived line for *var1* shows
> slightly delayed heading and may be slightly shorter (2).

Origin of mutant:

> A gamma-ray induced mutant in Montcalm (CIho 7149) (4).

Mutational events:

> *var1.a* in Montcalm (Alb Acc 311) (4).

Mutant used for description and seed stocks:

> *var1.a* in Montcalm (GSHO 1278); *var1.a* in Bowman (PI 483237)\*7
> (GSHO 2121).

References:

> 1\. Borovkova, I.G., Y. Jin, and B.J. Steffenson. 1998. Chromosomal
> location and genetic relationship of leaf rust resistance genes *Rph9*
> and *Rph12* in barley. Phytopathology 88:76-80.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Jensen, J. 1981. Construction of a barley chromosome 7 linkage
> map. p. 927-939. *In* M.J.C. Asher, R.P. Ellis, A.M. Hayter, and
> R.N.H. Whitehouse (eds.) Barley Genetics IV. Proc. Fourth Int. Barley
> Genet. Symp., Edinburgh. Edinburgh Univ. Press, Edinburgh.
>
> 4\. Walker, G.W.R., J. Dietrich, R. Miller, and K. Kasha. 1963. Recent
> barley mutants and their linkages II. Genetic data for further
> mutants. Can. J. Genet. Cytol. 5:200-219.

Prepared:

> T.E. Haus and T. Tsuchiya. 1971. BGN 1:165.

Revised:

> J.D. Franckowiak. 1997. BGN 26:257.
>
> J.D. Franckowiak. 2007. BGN 37:259.

BGS 348, Early maturity 5, *Eam5*

Stock number: BGS 348

Locus name: Early maturity 5

Locus symbol: *Eam5*

Previous nomenclature and gene symbolization:

> Early maturity = *Ea* (5, 8).
>
> Early maturity 3 = *Ea3* (2, 3).
>
> Early maturity 5 = *Ea5* (4).
>
> Early maturity 8 = *Ea8* (6).

Inheritance:

> Monofactorial dominant (9).
>
> Located in chromosome 5HL \[7L\] (2), very close to the *raw1* (smooth
> awn 1) locus (1, 8, 9).

Description:

> Plants with the *Eam5* gene head 3 to 10 days earlier than normal sibs
> under short-day conditions (1, 5). Early heading is commonly
> associated a shorter stature compared to normal sibs. The slight
> reduction in height is also observed under long-day conditions.
> Peduncles and rachis internodes are slightly shortened (1). The *Eam5*
> gene appears to be the common early maturity gene present in winter
> sown spring barley cultivars used in China and Japan; and it is
> present in the ICARDA/CIMMYT barley lines developed in Mexico. Complex
> interactions with other genes conditioning photoperiod response have
> been observed (1, 9). Takahashi and Yasuda (7) classified plants that
> were about 10 days earlier than normal spring barley as having the
> *Sgh2.II* (spring growth of habit 2, grade 2) gene, but an earliness
> factor closely linked to the rough awn gene was earlier identified in
> spring barley (8).

Origin of mutant:

> Natural occurrence in Indian cultivars (2, 3) and isolated from
> ICARDA/CIMMYT selection CMB85-533-H-1Y-1B-0Y-5B
> (Higuerilla\*2/Gobernadora) (1).

Mutational events:

> *Eam5.x* in CMB85-533 (1), *Eam5.x* in a number of Chinese cultivars
> planted in the fall (9).

Mutant used for description and seed stocks:

> *Eam5.x* in CMB85-533; *Eam5.x* in Bowman (PI 483237)\*6 (GSHO 3424).

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Jain, K.B.L. 1961. Genetic studies in barley. III. Linkage
> relations of some plant characters. Indian J. Genet. Plant Breed.
> 21:23-33.
>
> 3\. Murty, G.S., and K.B.L. Jain. 1960. Genetic studies in barley. II.
> Inheritance of fertility of lateral florets and certain other
> characters. J. Indian Botan. Soc. 39:281-308.
>
> 4\. Nilan, R.A. 1964. The cytology and genetics of barley, 1951-1962.
> Monogr. Suppl. 3, Res. Stud. Vol. 32, No. 1. Washington State Univ.
> Press, Pullman.
>
> 5\. Robertson, D.W., G.A. Wiebe, and F.R. Immer. 1941. A summary of
> linkage studies in barley. J. Am. Soc. Agron. 33:47-64.
>
> 6\. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A
> summary of linkage studies in cultivated barley, *Hordeum* species:
> Supplement III, 1954-1963. Crop Sci. 5:33-43.
>
> 7\. Takahashi, R., and S. Yasuda. 1971. Genetics of earliness and
> growth habit in barley. p. 388-408. *In* R.A. Nilan (ed.) Barley
> Genetics II. Proc. Second Int. Barley Genet. Symp., Pullman, WA, 1969.
> Washington State Univ. Press, Pullman.
>
> 8\. Wexelsen, H. 1934. Quantitative inheritance and linkage in barley.
> Hereditas 18:307-348.
>
> 9\. Yu, G. 2006. Development of early maturing two-rowed malting
> barley with Fusarium head blight resistance. Ph.D. Thesis. North
> Dakota State University, Fargo.

Prepared:

> J.D. Franckowiak. 2002. BGN 32:109.

Revised:

> J.D. Franckowiak and G. Yu. 2007. BGN 37:260-261.

BGS 349, Brachytic 4, *brh4*

Stock number: BGS 349

Locus name: Brachytic 4

Locus symbol: *brh4*

Previous nomenclature and gene symbolization:

> Brachytic-j = *brh.j* 4, 5).

Inheritance:

> Monofactorial recessive (4, 5).
>
> Located in chromosome 2HL (3), about 14.1 cM distal from SSR marker
> EBmac0850 in bin 2H-08 (1).

Description:

> Seedling leaves of *brh4* plants are short and wide compared to those
> of Bowman. Plants are 3/4 to 5/6 normal height and awns are about 3/4
> of normal length. Plants have a rather erect growth habit. Peduncle
> length is about 3/4 normal and rachis internodes are slightly
> shortened. Heading is delayed by about 2 days and the fertile spikelet
> number is increased by over 3, but these effects could be caused by
> pleiotropism or linkage drag with the *Eam6* (early maturity 6) locus.
> The kernels of *brh4* plants are slightly shorter (8.3 vs. 9.4 mm),
> more globose shaped, and slightly smaller (46 vs. 56 mg) than those of
> Bowman. The yield reduction was non-significant in comparisons between
> the *brh4.j* Bowman line and Bowman (1, 2).

Origin of mutant:

> A sodium azide induced mutant in Birgitta (NSGC 1870, NGB 1494, NGB
> 14667) (6).

Mutational events:

> *brh4.j* in Birgitta (17:13:6, DWS1005) (5, 6).

Mutant used for description and seed stocks:

> *brh4.j* in Birgitta (GSHO 1675); *brh4.j* in Bowman (PI 483237)\*7
> (GSHO 2130).

References:

1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
Characterization and molecular mapping of genes determining semidwarfism
in barley. J. Hered. 96:654-662.

> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross
> derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
>
> 4\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 5\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 6\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak. 2002. BGN 32:110.

Revised:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:262.

BGS 350, Brachytic 6, *brh6*

Stock number: BGS 350

Locus name: Brachytic 6

Locus symbol: *brh6*

Previous nomenclature and gene symbolization:

Brachytic-r = *brh.r* (3).

> Brachytic-s = *brh.s* (3).

Inheritance:

> Monofactorial recessive (4, 5).
>
> Located in chromosome 5HS \[7S\] (4), about 12.0 cM distal from SSR
> marker Bmag0394 in bin 5H-03 (1).

Description:

> Plants of the Bowman backcross-derived line are 2/3 to 3/4 normal
> height and awns are 1/2 to 2/3 normal length. The seedling leaf of
> *brh6* plants is shorter than that of normal sibs (1, 2). Peduncles
> and leaf blades are 2/3 normal length and the grain is nearly normal
> (1). However, kernels are nearly 20% lighter than those of Bowman with
> both decreased length and width (1, 2). Although grain yield of the
> near-isogenic line for *brh6* was lower than those of tall
> Akashinriki, the *brh6* line was considered a high yielding dwarf (7).

Origin of mutant:

> An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659, PI
> 467400) (6, 7).

Mutational events:

> *brh6.r* in Akashinriki (OUM133, dw-h, DWS1036, GSHO 1683), *brh6.s*
> in Akashinriki (OUM135, DWS1037, GSHO 1684) (3, 5, 6).

Mutant used for description and seed stocks:

> *brh6.r* in Akashinriki (GSHO 1683); *brh6.r* in Bowman (PI 483237)\*7
> (GSHO 2132).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross
> derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
>
> 5\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 6\. Konishi, T. 1976. The nature and characteristics of EMS-induced
> dwarf mutants in barley. p. 181-189. *In* H. Gaul (ed.). Barley
> Genetics III. Proc. Third Int. Barley Genet. Symp., Garching, 1975.
> Verlag Karl Thiemig, München.
>
> 7\. Konishi, T. 1977. Effects of induced dwarf genes on agronomic
> characters in barley. p. 21-38. *In* Use of dwarf mutations.
> Gamma-Field Symposium No. 16.

Prepared:

> J.D. Franckowiak and T. Konishi. 2002. BGN 32:111.

Revised:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:263.

BGS 377, Shrunken endosperm genetic 1, *seg1*

Number range CHAPTERStock number: BGS 377

Locus name: Shrunken endosperm genetic 1

Locus symbol: *seg1*

Previous nomenclature and gene symbolization:

> Shrunken endosperm = *se1* (4).

Inheritance:

> Monofactorial recessive (3).
>
> Located in chromosome 7HL \[1L\] (3), linked to the *msg23* (male
> sterile genetic 23) locus (5).

Description:

> Seed is long and thin and the 100-kernel weight is about 33% of
> normal. Good stands can be established in the field if optimum
> environmental conditions prevail during germination and emergence (3,
> 5). This mutant is associated with an increase in percentage lysine in
> the protein (5). Tannins are not deposited in *seg1* chalazal cell
> central vacuoles, but rather appeared to cause cytoplasmic
> disorganization and cell death (1). Light microscopy revealed that
> *seg1* mutants exhibited premature termination of grain filling
> because of the necrosis and crushing of the chalazal and nucellar
> projection of the pericarp early during grain filling (2).

Origin of mutant:

> A spontaneous mutant in Betzes (PI 129430) (3).

Mutational events:

> *seg1.a* in Betzes (3, 4).

Mutant used for description and seed stocks:

> *seg1.a* in Betzes (GSHO 750); *seg1.a* in Bowman (PI 483237)\*7 (GSHO
> 1852).

References:

> 1\. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1984. Development of
> tannin vacuoles in chalazal and seed coat of barley in relation to
> early chalazal necrosis in the seg1 mutant. Planta 161:540-549.
>
> 2\. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1985. Anatomy of
> immature grains of eight material effect shrunken endosperm barley
> mutants. Amer. J. Bot. 72:248-256.
>
> 3\. Jarvi, A.J. 1970. Shrunken endosperm mutants in barley, *Hordeum
> vulgare*. Ph.D. Thesis. Montana State Univ., Bozeman.
>
> 4\. Jarvi, A.J., and R.F. Eslick. 1971. BGS 377, Normal vs. shrunken
> endosperm, *se1*. Barley Genet. Newsl. 1:190.
>
> 5\. Jarvi, A.J., and R.F. Eslick. 1975. Shrunken endosperm mutants in
> barley. Crop Sci. 15:363-366.

Prepared:

> A.J. Jarvi and R.F. Eslick. 1971. BGN 1:190.

Revised:

> R.F. Eslick. 1976. BGN 6:135.
>
> T. Tsuchiya. 1980. BGN 10:124.
>
> J.D. Franckowiak. 1997. BGN 26:325.
>
> J.D. Franckowiak. 2007. BGN 37:264.

BGS 379, Shrunken endosperm genetic 3, *seg3*

Number range CHAPTERStock number: BGS 379

Locus name: Shrunken endosperm genetic 3

Locus symbol: *seg3*

Previous nomenclature and gene symbolization:

> Shrunken endosperm = *se3* (5).
>
> Proanthocyanidin-free 17 = *ant17* (3).

Inheritance:

> Monofactorial recessive (3).
>
> Located in chromosome 3HS (1, 6), over 30.8 cM from the centromere
> (6).

Description:

> Seed size is reduced to about 33% of normal when grown under field
> conditions. Seeds are long and thin similar to those from *seg1*
> plants; seeds are viable and good stand establishment is possible (6).
> Light microscopy revealed that *seg3* mutants exhibited premature
> termination of grain filling because of the necrosis and crushing of
> the chalazal and nucellar projection of the pericarp early during
> grain filling (2). The mutant *ant17.148* is an allele at the *seg3*
> locus (3); thus, all mutants at the proanthocyanidin-free 17 (*ant17*)
> locus might be alleles at the shrunken endosperm genetic 3 locus.
> Alleles at the *seg3* locus that have been examined in the Bowman
> genetic background showed a variable reduction in kernel weight:
> *ant17.148* and *seg3.c* about 1/3 normal and *ant17.567* about 3/4
> normal (3). The *seg3* locus was named before the *ant17* locus, but
> many more mutants were identified at the *ant17* locus. Therefore, see
> BGS 599 for a complete listing of *ant1*7 mutants.

Origin of mutant:

> A spontaneous mutant in Compana (PI 539111) (4).

Mutational events:

> *seg3.c* in Compana (4, 5), *ant17.148* (Galant, NGB 13698) in Triumph
> (PI 268180, NGB 13678) (3).

Mutant used for description and seed stocks:

> *seg3.c* in Compana (GSHO 752); *seg3.c* in Bowman (PI 483237)\*7
> (GSHO 1957), *ant17.148* in Bowman\*4 (GSHO 1973).

References:

> 1\. Boyd, P.W., and D. E. Falk. 1990. (Personal communications).
>
> 2\. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1985. Anatomy of
> immature grains of eight material effect shrunken endosperm barley
> mutants. Amer. J. Bot. 72:248-256.
>
> 3\. Franckowiak, J.D. (Personal communications).
>
> 4\. Jarvi, A.J. 1970. Shrunken endosperm mutants in barley, *Hordeum
> vulgare*. Ph.D. Thesis. Montana State Univ., Bozeman.
>
> 5\. Jarvi, A.J., and R.F. Eslick. 1971. BGS 379, Normal vs. shrunken
> endosperm, *se3*. Barley Genet. Newsl. 1:191.
>
> 6\. Jarvi, A.J., and R.F. Eslick. 1975. Shrunken endosperm mutants in
> barley. Crop Sci. 15:363-366.

Prepared:

> A.J. Jarvi and R.F. Eslick. 1971. BGN 1:191.
>
> B. Jende-Strid. 1999. BGN 29:88-89, as Number range CHAPTERBGS 599,
> proanthocyanidin-free 17, *ant17*.

Revised:

> R.F. Eslick. 1976. BGN 6:137.
>
> T. Tsuchiya. 1980. BGN 10:126.
>
> J.D. Franckowiak. 1997. BGN 26:327.
>
> J.D. Franckowiak and U. Lundqvist. 2007. BGN 37:265-266.

BGS 380, Shrunken endosperm genetic 4, *seg4*

Stock number: BGS 380

Locus name: Shrunken endosperm genetic 4

Locus symbol: *seg4*

Previous nomenclature and gene symbolization:

> Shrunken endosperm = *se4* (3).

Inheritance:

> Monofactorial recessive (2).
>
> Located in chromosome 7HL \[1L\] (2), over 34.0 cM from the centromere
> (4).

Description:

> Under field conditions in the original mutant, seed size is reduced to
> about 38% of normal and seed set is about 50% of normal. Stand
> establishment is poor under field conditions (2, 4). Endosperms of
> *seg4* were characterized by progressively distorted, disorganized
> growth, but the quantity of endosperm tissue at maturity varied from
> severely reduced to near normal (1). The stock described in the 1997
> revision was incorrect and was in fact a mixture with GSHO 755 (BGS
> 382, shrunken endosperm xenia 1, *sex1*), which was identified by Dr.
> Marion Röder, IPK, Gatersleben.

Origin of mutant:

> A spontaneous mutant in Compana (PI 539111) (2).

Mutational events:

> *seg4.d* in Compana (2, 3).

Mutant used for description and seed stocks:

> *seg4.d* in Compana (GSHO 753).

References:

> 1\. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1985. Anatomy of
> immature grains of eight material effect shrunken endosperm barley
> mutants. Amer. J. Bot. 72:248-256.
>
> 2\. Jarvi, A.J. 1970. Shrunken endosperm mutants in barley, *Hordeum
> vulgare*. Ph.D. Thesis. Montana State Univ., Bozeman.
>
> 3\. Jarvi, A.J., and R.F. Eslick. 1971. BGS 380, Normal vs. shrunken
> endosperm, *se4*. Barley Genet. Newsl. 1:192.
>
> 4\. Jarvi, A.J., and R.F. Eslick. 1975. Shrunken endosperm mutants in
> barley. Crop Sci. 15:363-366.

Prepared:

> A.J. Jarvi and R.F. Eslick. 1971. BGN 1:192.

Revised:

> R.F. Eslick. 1976. BGN 6:138.
>
> T. Tsuchiya. 1980. BGN 10:127.
>
> J.D. Franckowiak. 1997. BGN 26:328.
>
> J.D. Franckowiak. 2007. BGN 37:267.

BGS 396, Shrunken endosperm genetic 6, *seg6*

Number range CHAPTERStock number: BGS 396

Locus name: Shrunken endosperm genetic 6

Locus symbol: *seg6*

Previous nomenclature and gene symbolization:

> Shrunken endosperm = *se6* (3).

Inheritance:

> Monofactorial recessive (2).
>
> Located in chromosome 3HL (4).

Description:

> Seed size is reduced, but the degree reduction is affected by
> environment. Seed weights of 25, 50, and 75% of normal are reported
> for plants grown in the field in Arizona, in the field in Montana, and
> in the greenhouse in Arizona, USA, respectively (4). Pollen mother
> cell meiosis and pollen fertility are normal. Seed from *seg6.g*
> plants can be used to establish stands under field conditions (4).
> Light microscopy revealed that *seg6* mutants exhibited premature
> termination of grain filling because of the necrosis and crushing of
> the chalazal and nucellar projection of the pericarp early during
> grain filling (1).

Origin of mutant:

> A spontaneous mutant in Ingrid (CIho 10083) (3).

Mutational events:

> *seg6.f* in an unknown hybrid, *seg6.g* in Ingrid (3).

Mutant used for description and seed stocks:

> *seg6.g* in Ingrid (GSHO 2467); *seg6.g* in Bowman (PI 483237)\*4
> (GSHO 1975).

References:

> 1\. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1985. Anatomy of
> immature grains of eight material effect shrunken endosperm barley
> mutants. Amer. J. Bot. 72:248-256.
>
> 2\. Ramage, R.T. 1983. Chromosome location of shrunken endosperm
> mutants *seg6g* and *seg8k*. Barley Genet. Newsl. 13:64-65.
>
> 3\. Ramage, R.T., and R.F. Eslick. 1975. BGS 396, Shrunken endosperm,
> xenia, *se6*. Barley Genet. Newsl. 5:114.
>
> 4\. Ramage, R.T., and J.F. Scheuring. 1976. Shrunken endosperm mutants
> *seg6* and *seg7*. Barley Genet. Newsl. 6:59-60.

Prepared:

> R.T. Ramage and R.F. Eslick. 1975. BGN 5:114.

Revised:

> R.T. Ramage and R.F. Eslick. 1976. BGN 6:141.
>
> T. Tsuchiya. 1980. BGN 10:130.
>
> R.T. Ramage. 1983. BGN 13:115.
>
> J.D. Franckowiak. 1997. BGN 26:344.
>
> J.D. Franckowiak. 2007. BGN 37:268.

BGS 397, Shrunken endosperm genetic 7, *seg7*

Number range CHAPTERStock number: BGS 397

Locus name: Shrunken endosperm genetic 7

Locus symbol: *seg7*

Previous nomenclature and gene symbolization:

> Shrunken endosperm = *se7* (4).

Inheritance:

> Monofactorial recessive (3).
>
> Location is unknown.

Description:

> Seed size is reduced less than other *seg* mutants, but the degree
> reduction is affected by environment. Seed weights of 40, 75, and 90%
> of normal are reported for plants grown in the field in Arizona, in
> the field in Montana, and in the greenhouse in Arizona, USA,
> respectively (4). Pollen mother cell meiosis and pollen fertility are
> normal. Seed from *seg7.h* plants can be used to establish stands
> under field conditions (4). The shrunken endosperm trait was very
> difficult to detect in the crosses to Bowman (2). Light microscopy
> revealed that *seg7* mutants exhibited premature termination of grain
> filling because of the necrosis and crushing of the chalazal and
> nucellar projection of the pericarp early during grain filling (1).

Origin of mutant:

> A spontaneous mutant in Ingrid (CIho 10083) (3).

Mutational events:

> *seg7.h* in Ingrid (4).

Mutant used for description and seed stocks:

> *seg7.h* in Ingrid (GSHO 2468); *seg7.h* in Bowman (PI 483237)\*3
> (GSHO 2352).

References:

> 1\. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1985. Anatomy of
> immature grains of eight material effect shrunken endosperm barley
> mutants. Amer. J. Bot. 72:248-256.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Ramage, R.T., and R.F. Eslick. 1975. BGS 397, Shrunken endosperm,
> xenia, *se7*. Barley Genet. Newsl. 5:115.
>
> 4\. Ramage, R.T., and J.F. Scheuring. 1976. Shrunken endosperm mutants
> *seg6* and *seg7*. Barley Genet. Newsl. 6:59-60.

Prepared:

> R.T. Ramage and R.F. Eslick. 1975. BGN 5:115.

Revised:

> R.T. Ramage and R.F. Eslick. 1976. BGN 6:142.
>
> T. Tsuchiya. 1980. BGN 10:131.
>
> J.D. Franckowiak. 1997. BGN 26:345.
>
> J.D. Franckowiak. 2007. BGN 37:269.

BGS 437, Eceriferum-zt, *cer-zt*

Number range CHAPTERStock number: BGS 437

Locus name: Eceriferum-zt

Locus symbol: *cer-zt*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (3).
>
> Location in chromosome 2HS (1), in bin 2H-01 about 16.8 distal from
> SSR marker Bmac0134 (1).

Description:

> Surface wax coating on the spike appears slightly reduced (wax code +
> ++ ++) (3). The reduction in the surface wax seemed greater in plants
> selected from the backcrosses to Bowman (wax code +/- ++ ++).

Origin of mutant:

> An ethyl methanesulfonate and neutron induced mutant in Foma (CIho
> 11333) (2).

Mutational events:

> *cer-zt.389* (NGB 111276)*, -zt.479* (NGB 111367) in Foma (2).

Mutant used for description and seed stocks:

> *cer-zt.389* in Foma (GSHO 1527); *cer-zt.389* in Bowman (PI
> 483237)\*2 (GSHO 2205).

References:

> 1\. Dahleen, L.S., and J.D. Franckowiak. 2006. SSR linkages to eight
> additional morphological marker traits. Barley Genet. Newsl. 36:12-16.
>
> 2\. Lundqvist, U. (Unpublished).
>
> 3\. Lundqvist, U., and D. von Wettstein. 1971. Stock list for the
> eceriferum mutants. Barley Genet. Newsl. 1:97-102.

Prepared:

> U. Lundqvist. 1975. BGN 5:155.

Revised:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:389.
>
> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:270.

BGS 449, Eceriferum-yf, *cer-yf*

Number range CHAPTERStock number: BGS 449

Locus name: Eceriferum-yf

Locus symbol: *cer-yf*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (3).
>
> Location is unknown.

Description:

> Surface wax coating on the leaf blade is reduced (wax code ++ ++ +)
> (3). In the Bowman backcross-derived line, mutant plants have pale
> green leaves, heading is delayed by several days, and plants are
> slightly shorter (1).

Origin of mutant:

> A neutron induced mutant in Bonus (PI 189763) (2).

Mutational events:

> *cer-yf.652* (NGB 111540), *-yf.804* (NGB 111692) in Bonus (3).

Mutant used for description and seed stocks:

> *cer-yf.652* in Bonus (GSHO 1539); *cer-yf.652* in Bowman (PI
> 483237)\*3 (GSHO 2212).

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Lundqvist, U. (Unpublished).
>
> 3\. Lundqvist, U., and D. von Wettstein. 1973. Stock list for the
> eceriferum mutants II. Barley Genet. Newsl. 3:110-112.

Prepared.

> U. Lundqvist. 1975. BGN 5:167.

Revised:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:401.

Revised:

> U. Lundqvist. 2007. BGN 37:271.

BGS 455, Shrunken endosperm genetic 8, *seg8*

Number range CHAPTERStock number: BGS 455

Locus name: Shrunken endosperm genetic 8

Locus symbol: *seg8*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (2).
>
> Located in chromosome 7H \[1\] (4).

Description:

> Seed size is reduced and maturity is delayed. Seed weights of 24, 23,
> and 27% of normal are reported for plants grown in the field in
> Arizona, in the field in Montana, and in the greenhouse in Arizona,
> USA, respectively (4). Pollen mother cell meiosis and pollen fertility
> are normal. Seed from *seg8.k* plants can be used to establish stands
> under field conditions (4). Endosperms of *seg8* developed as
> two-filled lateral lobes with no central endosperm lobe, resulting in
> a distinct dorsal crease (1).

Origin of mutant:

> A spontaneous mutant in 60Ab1810-53 (CIho 15686) (3).

Mutational events:

> *seg8.k* in 60Ab1810-53 (3, 4).

Mutant used for description and seed stocks:

> *seg8.k* in 60Ab1810-53 (GSHO 2469); *seg8.k* in Bowman (PI 483237)\*5
> (GSHO 1854).

References:

> 1\. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1985. Anatomy of
> immature grains of eight material effect shrunken endosperm barley
> mutants. Amer. J. Bot. 72:248-256.
>
> 2\. Ramage, R.T. 1983. Chromosome location of shrunken endosperm
> mutants *seg6g* and *seg8k*. Barley Genet. Newsl. 13:64-65.
>
> 3\. Ramage, R.T., and C.L. Crandall. 1981. BGS 453, Shrunken
> endosperm, *seg8*. Barley Genet. Newsl. 11:103.
>
> 4\. Ramage, R.T., and C.L. Crandall. 1981. Shrunken endosperm mutant
> *seg8*. Barley Genet. Newsl. 11:34.

Prepared:

> R.T. Ramage and C.L. Crandall. 1981. BGN 11:103 as BGS 453.

Revised:

> R.T. Ramage. 1983. BGN 13:116 as BGS 453.
>
> T. Tsuchiya. 1983. BGN 13:117. BGS number changed to BGS 455.
>
> J.D. Franckowiak. 1997. BGN 26:405.
>
> J.D. Franckowiak. 2007. BGN 37:272.

BGS 474, Laxatum-a, *lax-a*

Number range CHAPTERStock number: BGS 474

Locus name: Laxatum-a

Locus symbol: *lax-a*

Previous nomenclature and gene symbolization:

> Laxatum-01 = *lax-01* (3, 6, 11).
>
> Laxatum-a = *lax-a^01^* (12).

Inheritance:

> Monofactorial recessive (7, 11).
>
> Located in chromosome 5HL \[7L\] (7, 10), about 2.4 cM proximal from
> the *ari-e* (breviaristatum-e) locus (5, 14), and about 3.1 cM from
> the *ert-g* (erectoides-g) locus (5, 12, 13).

Description:

> Florets have five anthers with two developing from transformed
> lodicules (3, 15); however, the extra anthers are deficient in having
> two rather than four microsporangia (1). The grain is thin and angular
> and caryopses are exposed between the lemma and palea. The awn has a
> very wide base, without a distinct notch in the lemma attachment
> region. Rachis internodes are 13% longer than normal. Tillers arise at
> oblique angles giving isolated plants an appearance of a tufty growth
> habit (6). Treatment of leaves after tillering with GA~3~ increases
> rachis internode length (15).

Origin of mutant:

> A gamma-ray induced mutant in Bonus (PI 189763) (2, 6, 9).

Mutational events:

> *lax-a.01* (NGB 116334), *-a.4* (NGB 116338), *-a.8* (NGB 116342)*,
> -a.20* (NGB 116354), *-a.37* (NGB 116372), *-a.39* (NGB 116374),
> *-a.54* (NGB 116388) in Bonus (6, 9); *lax-a.92* (NGB 116425, NGB
> 116426) in Bonus (9); *lax-a.208* (NGB 116435, NGB 116436), *-a.218*
> (NGB 116446)*, -a.222* (NGB 116450)*, -a.229* (NGB 116457, NGB
> 116458)*, -a.249, -a.256* (NGB 116483)*, -a.278* (NGB 116503)*,
> -a.286* (NGB 116510) in Foma (CIho 11333) (6, 8); *-a.353* (NGB
> 116559, NGB 116560), *-a.369* (NGB 116578, 116579), *-a.373* (NGB
> 116583), *-a.398* (NGB 116608), *-a.405* (NGB 116613), *-a.406* (NGB
> 116614) in Kristina (NGB 14661) (7); *-a.413* (NGB 116621, NGB
> 116622), *-a.434* (NGB 116647), *-a.437* (NGB 116650), *-a.444* (NGB
> 116658, NGB 116659), *-a.448* (NGB 116664), *-a.450* (NGB 116667, NGB
> 116668), *-a.455* (NGB 116674, NGB 116675), *-a.472* (NGB 116695) in
> Bonus (8); a *lax-a* mutant (Mut 2100/61) in Proctor (PI 280420) (4).

Mutant used for description and seed stocks:

> *lax-a.8* in Bonus (GSHO 1775); *lax-a.8* in Bowman (PI 483237)\*7
> (GSHO 2103).

References:

> 1\. Bossinger, G., W. Rohde W, U. Lundqvist U, and F. Salamini F.
> 1992. Genetics of barley development: mutant phenotypes and molecular
> aspects. p. 231-264. *In* P.R. Shewry (ed.) Barley: Genetics,
> Biochemistry, Molecular Biology and Biotechnology**.** CAB
> International, Oxford.
>
> 2\. Ehrenberg, L., Å. Gustafsson, and U. Lundqvist. 1961. Viable
> mutants induced in barley by ionizing radiations and chemical
> mutagens. Hereditas 47:257-278.
>
> 3\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 4\. Häuser, H., and G. Fischbeck. 1972. Translocations and genetic
> analysis of other mutants. BGN 2:28-29.
>
> 5\. Jensen, J. 1981. Construction of a barley chromosome 7 linkage
> map. p. 927-939. *In* M.J.C. Asher, R.P. Ellis, A.M. Hayter, and
> R.N.H. Whitehouse (eds.) Barley Genetics IV. Proc. Fourth Int. Barley
> Genet. Symp., Edinburgh. Edinburgh Univ. Press, Edinburgh.
>
> 6\. Larsson, H.E.B. 1985. Morphological analysis of *laxatum* barley
> mutants. Hereditas 103:239-253.
>
> 7\. Larsson, H.E.B. 1985. Linkage studies with genetic markers and
> some *laxatum* barley mutants. Hereditas 103:269-279.
>
> 8\. Lundqvist, U. (Unpublished).
>
> 9\. Persson, G. 1969. An attempt to find suitable genetic markers for
> the dense ear loci in barley II. Hereditas 63:1-28.
>
> 10\. Persson, G., and A. Hagberg. 1965. Localization of nine induced
> mutations in the barley chromosomes. Barley Newsl. 8:52-54.
>
> 11\. Persson, G., and A. Hagberg. 1969. Induced variation in a
> quantitative character in barley. Morphology and cytogenetics of
> *erectoides* mutants. Hereditas 61:115-178.
>
> 12\. Søgaard, B. 1974. Three-point tests on chromosome 1 and 7. BGN
> 4:70-73.
>
> 13\. Søgaard, B. 1977. The localization of eceriferum loci in barley.
> IV. Three point tests of genes on chromosome 7 in barley. Carlsberg
> Res. Commun. 42:35-43.
>
> 14\. Stoy, V., and A. Hagberg. 1967. Effects of growth regulators on
> ear density mutants in barley. Hereditas 58:359-384.
>
> 15\. Wettstein, D. von, Å. Gustafsson, and L. Ehrenberg. 1959.
> Mutationsforschung und Züchtung. p. 7-50. *In* Arbeitsgemeinschaft für
> Forschung des Landes Nordrhein-Westfalen, Heft 73. Westdeutscher
> Verlag Köln und Opladen.

Prepared:

> H.E.B. Larsson and U. Lundqvist. 1986. BGN 16:57.

Revised:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:421-422.

Revised:

> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:273-274.
>
> Number range CHAPTERNumber range CHAPTERBGS 516, Reaction to *Septoria
> passerinii* 2, *Rsp2*

Stock number: BGS 516

Locus name: Reaction to *Septoria passerinii* 2

Locus symbol: *Rsp2*

Previous nomenclature and gene symbolization:

> Resistance to *Septoria passerinii* Sacc = *Sep~2~* (1, 2).

Inheritance:

> Monofactorial incomplete dominant (2).
>
> Location in chromosome 1HS \[5S\] (3), about 3.9 cM from the *Rsp3
> (*reaction to *Septoria passerinii* 3) locus (2), cosegregation with
> SCAR marker E-ACT/M-CAA-170a and close to the *Rsp3* locus (3), about
> 17.6 cM proximal from marker RFLP Act8 (3).

Description:

> The *Rsp2.b* gene conditions a high level of resistance to a single
> spore culture of *Septoria passerinii* isolated in Minnesota, USA.
> Pycnidia are observed in some, but not all lesions, on all F~1~ plants
> (2).

Origin of mutant:

> Natural occurrence in accession CIho 4780 (PI 70837) (2).

Mutational events:

> *Rsp2.b* in PI 70837.

Mutant used for description and seed stocks:

> *Rsp2.b* in PI 70837 (GSHO 2511).

References:

> 1\. Moseman, J.G. 1972. Report on genes for resistance to pests.
> Barley Genet. Newsl. 2:145-147.
>
> 2\. Rasmusson, D.C., and W.E. Rogers. 1963. Inheritance of resistance
> to septoria in barley. Crop Sci. 3:161-163.
>
> 3\. Zhong, S., H. Toubia-Rahme, B.J. Steffenson, and K.P. Smith. 2006.
> Molecular mapping and marker-assisted selection of genes for septoria
> speckled leaf blotch resistance in barley. Phytopathology 96:993-999.

Prepared:

> D.C. Rasmusson. 1988. BGN 18:85 as BGS 466.

Revised:

> J.D. Franckowiak. 1997. BGN 26:442.
>
> J.D. Franckowiak. 2007. BGN 37:275.

Number range CHAPTERBGS 517, Reaction to *Septoria passerinii 3*, *Rsp3*

Stock number: BGS 517

Locus name: Reaction to *Septoria passerinii* 3

Locus symbol: *Rsp3*

Previous nomenclature and gene symbolization:

> Resistance to *Septoria passerinii* Sacc = *Sep~3~* (1, 2).

Inheritance:

> Monofactorial incomplete dominant (2).
>
> Location in chromosome 1HS \[5S\] (3), about 3.9 cM from the *Rsp2
> (*reaction to *Septoria passerinii* 2) locus (2), cosegregation with
> SCAR marker E-ACT/M-CAA-170a and close to the *Rsp2* locus (3), about
> 17.6 cM proximal from marker RFLP Act8 (3).

Description:

> The *Rsp3.c* gene conditions a high level of resistance to a single
> spore culture of *Septoria passerinii* isolated in Minnesota, USA.
> Infection occurs on F~1~ seedlings, but is limited to a few lesions
> (2).

Origin of mutant:

> Natural occurrence in selection II-51-43 from a Feebar/Kindred cross
> (CIho 10644) (2).

Mutational events:

> *Rsp3.c* in CIho 10644.

Mutant used for description and seed stocks:

> *Rsp3.c* in CIho 10644 (GSHO 2512).

References:

> 1\. Moseman, J.G. 1972. Report on genes for resistance to pests.
> Barley Genet. Newsl. 2:145-147.
>
> 2\. Rasmusson, D.C., and W.E. Rogers. 1963. Inheritance of resistance
> to septoria in barley. Crop Sci. 3:161-163.
>
> 3\. Zhong, S., H. Toubia-Rahme, B.J. Steffenson, and K.P. Smith. 2006.
> Molecular mapping and marker-assisted selection of genes for septoria
> speckled leaf blotch resistance in barley. Phytopathology 96:993-999.

Prepared:

> D.C. Rasmusson. 1988. BGN 18:86 as BGS 467.

Revised:

> J.D. Franckowiak. 1997. BGN 26:443.
>
> J.D. Franckowiak. 2007. BGN 37:276.

BGS 518, Semidwarf 1, *sdw1*

Stock number: BGS 518

Locus name: Semidwarf 1

Locus symbol: *sdw1*

Previous nomenclature and gene symbolization:

> Denso dwarf = *denso* (5, 12).

Inheritance:

> Monofactorial recessive (5, 13), although some F~1~\'s tend to be
> intermediate in height compared to their parents (1, 8).
>
> Location in chromosome 3HL (2, 9), probably proximal from the *gsh2*
> (glossy sheath 2) locus, near RFLP marker PSR170 (9), in bin 3H-11
> (7), near RFLP marker R1545 (16).

Description:

> Plants homozygous for the *sdw1.a* gene range from 10 to 30 cm shorter
> than normal sibs, with expression partial dependent on environment (1,
> 12, 14). Spike length is variable, but fully as long as normal barley.
> The stock used for description of the *sdw1.a* gene, M21, has the
> short straw and long spike of the original \'Jotun Mutant\' as well as
> a large culm diameter from its parent \'Vantage\' (1, 14). The
> semidwarf mutants, \'Diamant\' and 'Abed Denso', are alleles at the
> *sdw1* locus (5, 10). Alleles at the *sdw1* locus are associated with
> semiprostrate juvenile growth (5, 12), delayed maturity (4, 6, 12,
> 15), and reduced malt quality (4, 6, 12). The *sdw1* mutants are GA
> sensitive (3, 16), and they are very likely mutants in an orthologue
> of the rice *sd1* gene (16), which encodes a GA-oxidase that produces
> lower levels of GA and therefore causes the dwarf phenotype (11). The
> original cultivar 'Trumpf' was also marketed in the United Kingdom as
> 'Triumph'.

Origin of mutant:

> An X-ray induced mutant in the Norwegian cultivar Jotun (PI 467357)
> isolated as Jotun 22 by Knut Mikaelsen (1, 8).

Mutational events:

> *sdw1.a* in Jotun (66/86, GSHO 1414) (14); *sdw1.c* (*denso*) in Abed
> Denso (PI 361639) (5); *sdw1.d* (Diamant) in Valticky (5); *sdw1.e*
> (Risø 9265) in Bomi (PI 43371) (5).

Mutant used for description and seed stocks:

> *sdw1.a* in M21 (CIho 15481, GSHO 2513) from the cross Jotun
> Mutant/Kindred// Vantage (13); *sdw1.d* in Trumpf (Triumph, PI 548762,
> GSHO 2465); *sdw1.a* from a Jotun derivative in Bowman (PI 483237)\*7
> (GSHO 1978); *sdw1.d* from Trumpf in Bowman\*4 (GSHO 1979).

References:

> 1\. Ali, M.A.M., O. Okiror, and D.C. Rasmusson. 1978. Performance of
> semidwarf barley. Crop Sci. 18:418-422.
>
> 2\. Barau, U.M., K.J. Chambers, W.T.B. Thomas, C.A. Hackett, V. Lea,
> P. Jack, B.P. Forster, R. Waugh, and W. Powell. 1993. Molecular
> mapping of genes determining height, time to heading, and growth habit
> in barley (*Hordeum vulgare*). Genome 36:1080-1087.
>
> 3\. Boulger, M.C., R.G. Sears, and W.E. Kronstad. 1982. An
> investigation of the association between dwarfing sources and
> gibberellic acid response in barley. p. 550-553. *In* M.J.C. Asher,
> R.P. Ellis, A.M. Hayter, and R.N.H. Whitehouse (eds.) Barley Genetics
> IV. Proc. Fourth Int. Barley Genet. Symp., Edinburgh. Edinburgh Univ.
> Press, Edinburgh.
>
> 4\. Foster, A.E., and A.P. Thompson. 1987. Effects of a semidwarf gene
> from Jotun on agronomic and quality traits of barley. p. 979-982. *In*
> S. Yasuda and T. Konishi (eds.) Barley Genetics V., Proc. Fifth Int.
> Barley Genet. Symp., Okayama, 1986. Sanyo Press Co., Okayama.
>
> 5\. Haahr, V., and D. von Wettstein. 1976. Studies of an induced,
> high-yielding dwarf-mutant of spring barley. p. 215-218. *In* H. Gaul
> (ed.) Barley Genetics III., Proc. Third Int. Barley Genet. Symp.,
> Garching, 1975. Verlag Karl Thiemig, München.
>
> 6\. Hellewell, K.B., D.C. Rasmusson, M. Gallo-Meagher. 2000. Enhancing
> yield of semidwarf barley. Crop Sci. 40:352-358.
>
> 7\. Kleinhofs, A. 2006. Integrating molecular and
> morphological/physiological marker maps. Barley Genet. Newsl.
> 36:66-82.
>
> 8\. Lambert, J.W., and M. Shafi. 1959. Inheritance and heritability of
> height in three barley crosses. Barley Newsl. 3:7-8. (Abstr.)
>
> 9\. Laurie, D.A., N. Pratchett, C. Romero, E. Simpson, and J.W. Snape.
> 1993. Assignment of the *denso* dwarfing gene to the long arm of
> chromosome 3 (3H) of barley by use of RFLP markers. Plant Breed.
> 111:198-203.
>
> 10\. Mickelson, H.R., and D.C. Rasmusson. 1994. Genes for short
> stature in barley. Crop Sci. 34:1180-1183.
>
> 11\. Murai, M., T. Komazaki, and S. Sato. 2004. Effects of sd1 and Ur1
> (Undulate rachis -- 1) on lodging resistance and related traits in
> rice. Breed. Science 54: 333-340.
>
> 12\. Powell, W., P.D.J. Caligari, W.T.B. Thomas, and J.L. Jinks. 1985.
> The effects of major genes on quantitatively varying characters in
> barley. 2. The *denso* and day length response loci. Heredity
> 54:349-352.
>
> 13\. Powell, W., P.D.J. Caligari, W.T.B. Thomas, and J.L. Jinks. 1991.
> The effects of major genes on quantitatively varying characters in
> barley. 4. The *GPert* and *denso* loci and quality characters.
> Heredity 66:381-389.
>
> 14\. Rasmusson, D.C., E.E. Banttari, and J.W. Lambert. 1973.
> Registration of M21 and M22 semidwarf barley. Crop Sci. 13:777.
>
> 15\. Yin, X., P.C. Struik, F.A. van Eeuwijk, P. Stam, and J. Tang.
> 2005. [QTL analysis and QTL-based prediction of flowering phenology in
> recombinant inbred lines of
> barley](http://proquest.umi.com/pqdweb?index=18&did=818458691&SrchMode=3&sid=2&Fmt=10&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1183339531&clientId=62902&aid=1)**.**
> J. Exp. Bot. 56 (413):967-976.
>
> 16\. Zhang, J., X. Yang, P. Moolhuijzen, C. Li, M. Bellgard, R. Lance,
> and R. Appels. 2005. Towards isolation of the barley green revolution
> gene. Proceedings of Australian Barley Technical Symposium 2005.
> [http://www.cdesign.com.au/proceedings_abts2005/posters%20(pdf)/poster_li.pdf](http://www.cdesign.com.au/proceedings_abts2005/posters (pdf)/poster_li.pdf).

Prepared:

> D.C. Rasmusson. 1988. BGN 18:87 as BGS 468.

Revised:

> J.D. Franckowiak. 1997. BGN 26:444-445.
>
> J.D. Franckowiak. 2007. BGN 37:277-278.

BGS 546, Intermedium spike-k, *int-k*

Stock number: BGS 546

Locus name: Intermedium spike-k

Locus symbol: *int-k*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (3).
>
> Located in chromosome 7H \[1\] (2) in the centromeric region closely
> linked to markers Bmag0217 and Bmac0162 in bins 6 to 7 (2).

Description:

> The spike is short and dense in the original mutant. Lateral spikelets
> are enlarged and the apex is pointed, and they occasionally have a
> short awn. Seed set does not occur in lateral spikelets and the
> central spikelets are semi-sterile (3). Plants of the original stock
> have a dense coating of surface waxes. In the Bowman backcross-derived
> line, plants are small and weak (about 1/2 normal height) and have
> short spikes (1/2 normal), reduced awn length (3/4 normal), and very
> poor seed set. Awns of plants in the derived line are semi-rough, but
> F1 hybrids with Bowman have semismooth awns (1).

Origin of mutant:

> An ethyl methanesulfonate induced mutant in Kristina (NGB 1500) (3).

Mutational events:

> *int-k.47* in Kristina (3).

Mutant used for description and seed stocks:

> *in-k.47* in Kristina (GSHO 1770, NGB 115465); *int-k.47* in Bowman
> (PI 483237)\*6.

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Dahleen, L.S., and J.D. Franckowiak. 2006. SSR Linkages to Eight
> Additional Morphological Marker Traits. Barley Genet. Newsl. 36:12-16.
>
> 3\. Lundqvist, U., and A. Lundqvist. 1988. Induced intermedium mutants
> in barley: origin, morphology and inheritance. Hereditas 108:13-26.

Prepared:

U.  Lundqvist and J.D. Franckowiak. 1997. BGN 26:472.

Revised:

> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:279.

BGS 547, Intermedium spike-m, *int-m*

Stock number: BGS 547

Locus name: Intermedium spike-m

Locus symbol: *int-m*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (4).
>
> Location is unknown.

Description:

> The spike is very short and has irregular rachis internode lengths.
> Lateral spikelets are enlarged and pointed, but they do not set seed.
> Spikelet density at the base of the spike is increased. Rachis
> internodes at the tip of the spike are very short, and the spike
> appears to have two or three fused or fasciated terminal spikelets.
> Tillering of *int-m* plants is increased (1, 4) and heading is
> slightly earlier (4).

Origin of mutant:

> A sodium azide induced mutant in Bonus (PI 189763) (3).

Mutational events:

> *int-m.85* (NGB 115503) in Bonus (3); *int-m.la* (GSHO 1773) in Lamont
> (PI 512036) (2).

Mutant used for description and seed stocks:

> *int-m.85* in Bonus (GSHO 1772); *int-m.85* in Bowman (PI 483237)\*7
> (GSHO 2273); *int-m.la* in Bowman (PI 483237)\*5 (GSHO 2274).

References:

> 1\. Babb, S., and G.J. Muehlbauer. 2003. Genetic and morphological
> characterization of the barley uniculm 2 (*cul2*) mutant. Theor. Appl.
> Genet. 106:846-857.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Lundqvist, U. (Unpublished).
>
> 4\. Lundqvist, U., and A. Lundqvist. 1988. Induced intermedium mutants
> in barley: origin, morphology and inheritance. Hereditas 108:13-26.

Prepared:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:473.

Revised:

> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:280.

Number range CHAPTERBGS 566, Erectoides-t, *ert-t*

Stock number: BGS 566

Locus name: Erectoides-t

Locus symbol: *ert-t*

Previous nomenclature and gene symbolization:

> Erectoides-55 = *ert-55* (7).
>
> Brachytic 4 = *br4* (10).
>
> Brachytic-g = *brh.g* (3).
>
> Brachytic 3 = *brh3* (4).
>
> Brachytic-i = *brh.i* (3).
>
> Brachytic-y = *brh.y* (3).

Inheritance:

> Monofactorial recessive (3, 5, 7, 9).
>
> Located in chromosome 2HS (2), approximately 11.4 cM distal from SSR
> marker Bmac0134 (2), near the boundary between bins 2H-01 and 2H-02
> (2).

Description:

> Spikes are semicompact, rachis internode length is about 2.7 mm in the
> original mutant, and culm length is about 2/3 of normal. These
> phenotypic traits plus short awns are inherited together (9). Based on
> general appearance of the plants, *ert-t* can be placed in the
> brachytic class of semidwarf mutants (3, 10). Awns are about 2/3
> normal length and curled or coiled near their tips. The *ert-t.55*
> mutant has a short seedling leaves and is sensitive to gibberellic
> acid treatment (1). In the Bowman backcross-derived lines, peduncles
> are about 2/3 normal, rachis internodes are slightly short, and
> lodging is reduced. Kernels are slightly lighter and yields are about
> 1/2 normal (2).

Origin of mutant:

> An X-ray induced mutant in Bonus (PI 189763) (7).

Mutational events:

> *ert-t.55* in Bonus (NGB 112654) (7); *brh3.g* (17:10:1, DWS1002),
> *brh3.h* (17:11:3, DWS1003), *brh3.i* (17:12:1, DWS1004) in Birgitta
> (NGB 1494, NGB 14667) (2, 3, 4, 8); *brh3.y* (10001, DWS1230, GSHO
> 1688) in Bido (PI 399485) (2, 3, 6).

Mutant used for description and seed stocks:

> *ert-t.55* in Bonus (GSHO 494); *ert-t.55* in Bowman (PI 483237)\*7
> (GSHO 2257); *brh3.g* in Birgitta (GSHO 1672); *brh3.g* in Bowman\*7
> (GSHO 2167); *brh3.y* in Bowman\*6 (GSHO 2178).

References:

> 1\. Börner, A. 1996. GA response in semidwarf barley. Barley Genet.
> Newsl. 25:24-26.
>
> 2\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. BGN 24:56-59.
>
> 4\. Franckowiak. 2002.Number range CHAPTER BGS 631, Brachytic 3,
> *brh3*. BGN 32:132.
>
> 5\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 6\. Gaul, H. 1986. (Personal communications).
>
> 7\. Hagberg, A., Å. Gustafsson, and L. Ehrenberg. 1958. Sparsely
> contra densely ionizing radiations and the origin of erectoid mutants
> in barley. Hereditas 44:523-530.
>
> 8\. Lehmann, L.C. 1985. (Personal communications).
>
> 9\. Persson, G., and A. Hagberg. 1969. Induced variation in a
> quantitative character in barley. Morphology and cytogenetics of
> *erectoides* mutants. Hereditas 61:115-178.
>
> 10\. Tsuchiya, T. 1976. Allelism testing of genes between brachytic
> and erectoides mutants. Barley Genet. Newsl. 6:79-81.

Prepared:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:492.
>
> J.D. Franckowiak. 2002. BGS 631, Brachytic 3, *brh3*. BGN 32:132.

Revised:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:281-282.

Number range CHAPTERBGS 577, Reaction to *Schizaphis graminum* 2, *Rsg2*

Stock number: BGS 577

Locus name: Reaction to *Schizaphis graminum* 2 (greenbug)

Locus symbol: *Rsg2*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial dominant (1).
>
> Location is unknown.

Description:

> Resistant seedlings infested with greenbugs (aphids) are not killed or
> severely stunted by a buildup of the greenbug population, but
> susceptible seedlings are killed or severely stunted (1, 4). The
> resistance provided by PI 426756 (4 to 5 readings on a 1 to 9 scale)
> to most *S. graminum* biotypes was less effective than that provided
> the *Rsg1.a* gene in Post 90 (PI 549081) (2 to 3 readings) (3). PI
> 426756 was confirmed to provide resistance (2 to 3 readings) to the
> TX1 isolate of *S. graminum*, which produces a susceptible reaction (9
> reading) on Post 90 (2).

Origin of mutant:

> Natural occurrence in Joa (PI 426756) (1, 4).

Mutational events:

> *Rsg2.b* in PI 426756 (1).

Mutant used for description and seed stocks:

> *Rsg2.b* in PI 426756 (GSHO 2513).

References:

> 1\. Merkle, O.G., J.A. Webster, and G.H. Mogen. 1987. Inheritance of a
> second source of greenbug resistance in barley. Crop Sci. 27:241-243.
>
> 2\. Porter, D.R., J.D. Burd, and D.W. Mornhinweg. 2007.
> Differentiating greenbug resistance genes in barley. Euphytica
> 153:11-14.
>
> 3\. Porter, D.R., and D.W. Mornhinweg. 2004. Characterization of
> greenbug resistance in barley. Plant Breed. 123:493-494.
>
> 4\. Webster, J.A., and K.J. Starks. 1984. Sources of resistance in
> barley to two biotypes of greenbug *Schizaphis graminum* (Rondani),
> Homoptera: Aphididae. Protect. Ecol. 6:51-55.

Prepared:

> J.D. Franckowiak. 1997. BGN 26:503.

Revised:

> J.D. Franckowiak. 2007. BGN 37:283.

Number range CHAPTERBGS 586, Bracteatum-d, *bra-d*

Stock number: BGS 586

Locus name: Bracteatum-d

Locus symbol: *bra-d*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (1).
>
> Located in chromosome 1HL \[5L\] (5), about 4.1 cM from AFLP marker
> E3634-7 (5), probably in bin 1H-14 based on the association with
> *trd1* (third outer glume 1) (2, 5).

Description:

> The characteristic trait of this mutant is the presence of a bract
> (third outer glume) outside the two empty glumes of the central
> spikelet. The bract subtending the lowest spikelet is always the
> largest, embracing in some cases about one-half the spike. Bracts
> become progressively smaller toward the tip of the spike. Mutants have
> elongated basal rachis internodes (3, 4). Pozzi et al. (5) suggested
> that *bra-d.7* is allelic to *trd1* (third outer glume 1) or near the
> *trd1* locus. Allelism studies demonstrated that *bra-d.7* is not an
> allele at the *trd1* locus (3).

Origin of mutant:

> An ethylene imine induced mutant in Foma (CIho 11333) (3).

Mutational events:

*bra-d.7* (NGB 114310) in Foma (3).

Mutant used for description and seed stocks:

> *bra-d.7* in Foma (GSHO 1696); *bra-d.7* in Bowman (PI 483237)\*3
> (GSHO 2185).

References:

> 1\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 2\. Kleinhofs, A. 2006. Integrating molecular and
> morphological/physiological marker maps. Barley Genet. Newsl.
> 36:66-82.
>
> 3\. Lundqvist, U. (Unpublished).
>
> 4\. Nybom, N. 1954. Mutation types in barley. Acta Agric. Scand.
> 4:430-456.
>
> 5\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.

Prepared:

> U. Lundqvist and J.D. Franckowiak. 1997. BGN 26:513.

Revised:

> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:284.

Number range CHAPTERNumber range CHAPTERBGS 593, Awned palea 1, *adp1*

Stock number: BGS 593

Locus name: Awned palea 1

Locus symbol: *adp1*

Previous nomenclature and gene symbolization:

> Awned palea = *adp* (1).

Inheritance:

> Monofactorial recessive (1, 2).
>
> Located in chromosome 3HL (2), about 5.8 cM distal from AFLP marker
> E3634-8 in subgroup 27 of the Proctor/Nudinka map (2).

Description:

> This mutant was isolated as a partially female sterile plant with
> abnormal spikes. The palea is elongated to form two awns (2), which
> are derived from two fused bracts that form the palea (3). Pistils are
> often transformed into leafy buds and result in low female fertility
> and greatly reduced seed set. Two of the anthers appear normal and the
> third is deformed to some extent (1). Pollen fertility is good (1).

Origin of mutant:

> A spontaneous mutant in an inbred line (1).

Mutational events:

> *adp1.a* in an unknown inbred line (1).

Mutant used for description and seed stocks:

> *adp1.a* in a selection, with the *eog1.a* (elongated outer glume 1)
> gene from Svalöfs Guldkorn 91 \[AHOR 226, a mutant of Gull (CIho 1145,
> GSHO 466)\] (1), crossed to the unknown line (GSHO 1618); *adp1.a* in
> Bowman\*5 (GSHO 1950).

References:

> 1\. Ahokas, H. 1977. A mutant of barley: Awned palea. Barley Genet.
> Newsl. 7:8-10.

2\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
Integration of a barley (Hordeum vulgare) molecular linkage map with the
position of genetic loci hosting 29 developmental mutants. Heredity
90:390-396.

> 3\. Williams, R.F. 1975. The Shoot Apex and Leaf Growth. Cambridge
> University Press, Cambridge.

Prepared:

> J.D. Franckowiak. 1998. BGN 28:34.

Revised:

> J.D. Franckowiak. 2007. BGN 37:285.

Number range CHAPTERBGS 599, Proanthocyanidin-free 17, *ant17*

Stock number: BGS 599

Locus name: Proanthocyanidin-free 17

Locus symbol: *ant17*

Previous nomenclature and symbolization:

None.

Inheritance:

> Monofactorial recessive (4, 5).
>
> Located in chromosome 3HS (1), it has been shown that *ant17.148* is
> an allele at the *seg3* (shrunken endosperm genetic 3, see BGS 379)
> locus (2).

Description:

> Under normal growing conditions no anthocyanin pigmentation is
> observed in the mutant plants. The testa layers of the grain of the
> *ant17* mutants lack proanthocyanidins and catechins, but accumulate
> homoeriodictyol and chrysoeriol (7, 10). A full length cDNA clone from
> barley, coding for a protein consisting of 377 amino acids (42 kDa),
> has been isolated. It shows a homology of 71% to the
> flavanone-3-hydroxylase enzyme protein from *Antirrhinum majus* (12).
> It is likely that the *ant17* gene codes for one subunit and the
> *ant22* gene for the other subunit of the dimeric flavanone
> 3-hydroxylase enzyme, which catalyzes the conversion of flavanones
> into dihydroflavanols (7, 12). The mutant stock *ant17.148* was
> released as cultivar Galant (11). Alleles at the *ant17* locus that
> have been examined in the Bowman genetic background showed a variable
> reduction in kernel weight: *ant17.148* and *seg3.c* about 1/3 normal
> and *ant17.567* about 3/4 normal (2).

Origin of mutant:

> A sodium azide induced mutant in Nordal (NGB 13680) (3).

Mutational events:

> *ant17.103*, *17.104*, *17.105*, *17.139*, *17.140*, *17.142*,
> *17.143*, *17.145* in Nordal (4); *ant17.107* in Alf (NGB13682) (4);
> *ant17.147*, *17.148* (Galant) (NGB 13698), *17.150*, *17.151*,
> *17.153*, *17.154*, *17.180*, *17.185* in Triumph (PI 268180, NGB
> 13678) (4); *ant17.352* in Triumph (5); *ant17.160* in Gula Abed (NGB
> 13681) (4); *ant17.165*, *17.167*, *17.169*, *17.171*, *17.174*,
> *17.182* in Ark Royal (PI 447006) (4); *ant17.192*, *17.193* in
> Georgie (PI 447012, NGB 13683) (4); *ant17.199* in Secobra 4681 (4);
> *ant17.200* in Secobra 4681 (5); *ant17.208* in Hege 876 (4);
> *ant17.210*, *17.211*, *17.217* in Hege 802 (4); *ant 17.216* in Hege
> 802 (5); *ant17.220*, *17.221*, *17.224*, in Secobra 4743 (NGB 13679)
> (4); *ant17.227* in Ca 59995 (5); *ant17.231* in Tron (4);
> *ant17.237*, *17.239*, *17.241*, *17.242*, *17.247*, *17.249* in
> Gunhild (PI 464655, NGB 13690) (4); *ant17.243*, *17.246* in Gunhild
> (5); *ant17.250*, *17.251*, *17.252*, *17.253*, *17.255* in Tokak (PI
> 264251) (4); *ant17.267*, *17.268*, *17.269* in Secobra 18193 (NGB
> 13684) (4); ant17.270 in Secobra 18193 (5); ant17.280 in Hege 550/75
> (NGB 13692) (9); ant17.288, 17.289, 17.290 in Hege 550/75 (4);
> ant17.293, 17.294, 17.295, 17.296 in Bonus (PI 189763) (4); ant17.297,
> 17.298, 17.300, 17.301, 17.307 in Ca 41507 (4); ant17.306, 17.340 in
> Ca 41507 (5); ant17.316 in Ca 33787 (NGB 13693) (5); ant17.318,
> 17.321, 17.326 in Harry (PI 491575) (5); ant17.331 in Hege A2/A4 (5);
> ant17.335, 17.336, 17.338 in Ackermann 724/5/7 (5); ant17.359 in
> Hege15/74-1A (5); ant17.370 in Ackermann 72/440 (5); ant17.372,
> 17.413, 17.414, 17.417, 17.418, 17.419, 17.444 in Kaya (5); ant17.375
> in Fanette (6); ant17.379, 17.382, 17.383, 17.386, 17.387, 17.388,
> 17.389, 17.390, 17.391, 17.464, 17.465 in Irene (5); ant17.405 in Odin
> (6); ant17.408 in KMJ 326 (5); ant17.410, 17.447 in Catrin (5);
> ant17.421 in VBS 18707 (5); ant17.422, 17.423, 17.424, 17.426 in NZ
> 3789 (5); ant17.432 in NZ 1836-3 (5); ant17.438, 17.439 in NZ 732.01
> (5); ant17.440 in Nordal (5); ant17.450 in Ca 601427 (5); ant17.453,
> 17.455, 17.457, 17.458 in Ackermann 1734/5 (5); ant17.462 in Pamela
> (5); ant17.469, 17.470 in Grit (PI 548764, NGB 13685) (5); ant17.475
> in Zenit (PI 564447, NGB 13686) (5); ant17.476 in Zenit (6); ant17.480
> in Secobra 9709 (5); ant17.501 in Advance (CIho 15804) (4); ant17.504
> in Karla (CIho 15860) (4); ant17.506, 17.507, 17.508, 17.509 in OR
> 9114 (4); ant17.515, 17.516, 17.518 in WA9037-75 (4); *ant17.520* in
> WA9044-75 (4); *ant17.530* in Morex (CIho15773) (4); *ant17.537*,
> *17.595*, *17.619*, *17.620* in Advance (5); *ant17.560*, *17.561*,
> *17.563*, *17.565*, *17.567* in Manker (CIho 15549) (5); *ant17.597*
> in Morex (6); *ant17.598* in Morex (5); *ant17.600* in S 80351 (5);
> *ant17.601* in Moravian 111 (CIho 15812) (5); *ant17.604* in
> Harrington (6); *ant17.612* in Andre‚ (PI 469107) (5); *ant17.624* in
> Klages (CIho 15478) (5); *ant17.625* in Robust (M36, PI 476976) (5);
> *ant17.630* in Azure (CIho 15865) (13); *ant17.636*, *17.658* in
> Cougbar (PI 496400) (13); *ant17.637* in 8892-78 (13); *ant17.661* in
> Crest (PI 561409) (13); *ant17.1502*, *17.1505*, *17.1519* in
> Amagi-Nijo (4); *ant17.1510*, *17.1511* in Haruna- Nijo (4);
> *ant17.1515* in Nirakei 61 (4); *ant17.1537* in Nirakei 62 (5);
> *ant17.1544* in Nirakei 63 (5); *ant17.1534* in Nirasaki-Nijo 14 (5);
> *ant17.2022*, *17.2067* in Natasha (PI 592171) (6); *ant17.2084* in
> Hege 694/82 (9); *ant17.2106* in Ca 708912 (8); ant17.5019 in Sonja
> (PI 302047) (9); *ant17.5024* in Ackermann 72/27/4 (6); *ant17.5028*
> in Trigger (PI 473541) (9); *ant17.5034* in Kaskade (9); *ant17.5035*,
> *17.5036*, *17.5037* in Video (6); *ant17.5038*, *17.5039*, *17.5040*,
> *17.5042* in Sonja (6); *ant17.5044* in Ackermann 27/220/8 (6).

Mutant used for description and seed stock:

> *ant17.139* in Nordal (NGB 13697); *ant17.148* (Galant) in Triumph
> (NGB 13698, GSHO 1628); *ant17.148* in Bowman (PI 483237)\*4 (GSHO
> 1973); *ant17.567* in Manker (GSHO 1629); *ant17.567* in Bowman\*5
> (GSHO 1974), *seg3.c* in Bowman (PI 483237)\*7 (GSHO 1957).

References:

> 1\. Boyd, P.W., and D. E. Falk. 1990. (Personal communications).
>
> 2\. Franckowiak, J.D. (Personal communications).
>
> 3\. Jende-Strid, B. 1978. Mutation frequencies obtained after sodium
> azide treatments in different barley varieties. Barley Genet. Newsl.
> 8:55-57.
>
> 4\. Jende-Strid, B. 1984. Coordinator\'s report: Anthocyanin genes.
> Barley Genet. Newsl. 14:76-79.
>
> 5\. Jende-Strid, B. 1988. Coordinator\'s report: Anthocyanin genes.
> Stock list of ant mutants kept at the Carlsberg Laboratory. Barley
> Genet. Newsl. 18:74-79.
>
> 6\. Jende-Strid, B. 1991. Coordinator\'s report: Anthocyanin genes.
> Barley Genet. Newsl. 20:87-88.
>
> 7\. Jende-Strid, B. 1993. Genetic control of flavonoid biosynthesis in
> barley. Hereditas 119:187-204.
>
> 8\. Jende-Strid, B. 1993. Coordinator\'s report: Anthocyanin genes.
> Barley Genet. Newsl. 22:136-137.
>
> 9\. Jende-Strid, B. 1995. Coordinator\'s report: Anthocyanin genes
> Barley Genet. Newsl. 24:162-165.
>
> 10\. Jende-Strid, B., and K.N. Kristiansen. 1987. Genetics of
> flavonoid biosynthesis in barley. p. 445-453. *In*: S. Yasuda and T.
> Konishi (eds.) Barley Genetics V. Proc. Fifth Int. Barley Genet.
> Symp., Okayama 1986. Sanyo Press Co., Okayama.
>
> 11\. Larsen, J., S. Ullrich, J. Ingversen, A. E. Nielsen, J.S. Gochan,
> and J. Clanay. 1987. Breeding and malting behaviour of two different
> proanthocyanidin-free barley gene sources. p. 767-772. *In* S. Yasuda
> and T. Konishi (eds.) Barley Genetics V. Proc. Fifth Int. Barley
> Genet. Symp., Okayama. 1986. Sanyo Press Co., Okayama.
>
> 12\. Meldgaard, M. 1992. Expression of chalcone synthase,
> dihydroflavonol reductase, and flavanone 3-hydroxylase in mutants in
> barley deficient in anthocyanin and proanthocyanidin biosynthesis.
> Theor. Appl. Genet. 83:695-706.
>
> 13\. Ullrich, S., and J. Cochran. 1998. (Personal communications).

Prepared:

> B. Jende-Strid. 1999. BGN 29:88-89.

Revised:

> B. Jende-Strid and U. Lundqvist. 2007. BGN 37:286-288.
>
> Number range CHAPTERBGS 617, Uniculme 4, *cul4*

Stock number: BGS 617

Locus name: Uniculme 4

Locus symbol: *cul4*

Previous nomenclature and gene symbolization:

> Uniculme-5 = *uc-5* (3).

Inheritance:

> Monofactorial recessive (3).
>
> Located in chromosome 3HL (5), near AFLP marker E4143-4 in subgroup 32
> of the Proctor/Nudinka map (5).

Description:

> Plants produce 1 to 4 tillers that are twisted and have slightly bowed
> culm internodes. All secondary tillers are shorter than the primary
> tiller and have a curly appearance. Often secondary tillers are
> trapped at the base of the primary tiller (2, 4). Compared to normal
> sibs, *cul4* plants have peduncles that are slightly to 50% longer.
> Rachis internodes are slightly elongated, and kernels are slightly
> longer. Plant height varies from 2/3 normal to slightly taller than
> Bowman. The mutant *cul4.15* exhibits the most variation in height
> over environments (2). Under greenhouse conditions, Bowman line for
> *cul4.5* developed only two axillary tillers, and it was uniculm when
> combined with the *cul2.b* (uniculm 2) gene (1).

Origin of mutant:

> An ethylene oxide induced mutant in Bonus (PI 189763) (4).

Mutational events:

> *cul4.3* in Bonus (GSHO 2495, NGB 115062), *cul4.5* in Bonus (NGB
> 115063), *cul4.15* (NGB 115064) in Foma (CIho 11333), *cul4.16* in
> Bonus (NGB 115065) (4).

Mutant used for description and seed stocks:

> *cul4.5* in Bonus (GSHO 2493, NGB 115063); *cul4.5* in Bowman (PI
> 483237)\*7 (GSHO 2361).

References:

> 1\. Babb, S., and G.J. Muehlbauer. 2003. Genetic and morphological
> characterization of the barley uniculm2 (*cul2*) mutant. Theor. Appl.
> Genet. 106:846--857.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 4\. Lundqvist, U. (Unpublished).
>
> 5\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.

Prepared:

> J.D. Franckowiak and U. Lundqvist. 2002. BGN 32:118.

Revised:

> J.D. Franckowiak and U. Lundqvist. 2007. BGN 37:289.

BGS623, Eligulum-a, *eli-a*

Stock number: BGS 623

Locus name: Eligulum-a

Locus symbol: *eli-a*

Previous nomenclature and gene symbolization:

> Eligulum-a = *lig-a* (2).
>
> Eligulum-3 = *eli-3* (4).

Inheritance:

> Monofactorial recessive (2).
>
> Location is unknown.

Description:

> Plants do not have ligules in the junction between the sheath and leaf
> blade, auricles are rudimentary and asymetrically displaced. Plants
> are about 2/3 of normal height and have very wide leaves (3, 4). The
> peduncle is short and spike emergence from the sheath of the flag leaf
> is poor. Spikes have a compact arrangement of spikelets and are
> extremely compacted near the tip (1, 3). The culm breaks very easily
> just below the nodes. The Bowman backcross-derived lines have glume
> awns that are nearly twice as long as those of Bowman, but the lemma
> awns are about 2/3 of normal (1).

Origin of mutant:

> An ethylene imine induced mutant in Foma (CIho 11333) (2, 3).

Mutational events:

> *eli-a.2* (NGB 115389), *eli-a.3* (NGB 115390), *-a.7* (NGB 115392),
> *-a.9* (NGB 115393), *-a.10* (NGB 115394) in Foma (3); *eli-a.11* (NGB
> 115395), *-a.14* (NGB 115397) in Kristina (NGB 1500); *eli-a.15* (NGB
> 115398), *-a.16* (NGB 151399) in Bonus (PI 189763 (4), *-a.216*
> (FN216) in Steptoe (CIho 15229) (1, 3).

Mutant used for description and seed stocks:

> *eli-a.3* in Foma (NGB 115390); *eli-a.3* in Bowman (PI 483237)\*3.

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 3\. Kleinhofs, A. (Unpublished).
>
> 4\. Lundqvist, U. (Unpublished).

Prepared:

> U. Lundqvist and J.D. Franckowiak. 2002. BGN 32:126.

Revised:

> J.D. Franckowiak and A. Kleinhofs. 2005. BGN 35:192.

Revised:

> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:290.

BGS 633, Many noded dwarf 6, *mnd6*

Stock number: BGS 633

Locus name: Many noded dwarf 6

Locus symbol: *mnd6*

Previous nomenclature and gene symbolization:

> Densinodosum-6 = *den-6* (3, 4).

Inheritance:

> Monofactorial recessive (4).
>
> Located in chromosome 5HL \[7L\] (5), near AFLP marker E3743-3 in
> subgroup 65 of the Proctor/Nudinka map (5).

Description:

> Plants with the *mnd6.6* gene are about 2/3 normal height and have
> many elongated internodes in each culm (1, 4). The number of elongated
> internodes can be up to 20 in the original stock when grown in Sweden.
> Kernels are thin and small (4). The number of tillers per plant is
> increased compared to normal sibs. Peduncles are very short, about 1/3
> normal length, and awns are about 1/2 normal length. Spikes are
> shorter with slightly over half the kernel number of Bowman. The
> Bowman backcross-derived line has 9 to 10 elongated internodes per
> tiller. Kernels of the Bowman *mnd6* line are thinner and about 2/3 of
> normal weight (2). The grain yields of the *mnd6* line are about 3/4
> normal (2).

Origin of mutant:

> An ethylene imine induced mutant in Bonus (PI 189763) (4).

Mutational events:

> *mnd6.6* in Bonus (NGB 114514) (4); *mnd6.8* in Bonus (NGB 114516) (4,
> 5).

Mutant used for description and seed stocks:

> *mnd6.6* in Bonus (GSHO 1713), *mnd6.6* in Bowman (PI 483237)\*7 (GSHO
> 2235).

References:

> 1\. Bossinger, G., U. Lundqvist, W. Rohde, and F. Salamini. 1992.
> Genetics of plant developm ent in barley. p. 989-1017. *In* L. Munck,
> K. Kirkegaard, and B. Jensen (eds.). Barley Genetics VI. Proc. Sixth
> Int. Barley Genet. Symp., Helsingborg, 1991. Munksgaard Int. Publ.,
> Copenhagen.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A
> proposed system of symbols for the collection of barley mutants at
> Svalöv. Hereditas 62:409-414.
>
> 4\. Lundqvist, U. (Unpublished).
>
> 5\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.

Prepared:

> U. Lundqvist and J. D. Franckowiak. 2002. BGN 32:134.

Revised:

> U. Lundqvist and J. D. Franckowiak. 2007. BGN 37:291.

BGS 636, Tip sterile 2, *tst2*

Stock number: BGS 636

Locus name: Tip sterile 2

Locus symbol: *tst2*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (4).
>
> Location is unknown.

Description:

> Spikes of *tst2.b* plants are 1/4 to 1/2 of normal length because seed
> set fails in the upper portion of the spike. Slow or poor development
> of the spike reduces both the number of rachis internodes and number
> of fertile spikelets (1, 4). Most spikes of the Bowman
> backcross-derived line set less than 10 seeds. Plants are shorter than
> are normal sibs because peduncles fail to elongate normally. Both
> rachis internode length and awn length are reduced in *tst2* plants
> (1).

Origin of mutant:

> An X-ray induced mutant in Donaria (PI 161974) (3, 4).

Mutational events:

> *tst2.b* in Donaria (Mut. 2249, DWS1337) (2, 3).

Mutant used for description and seed stocks:

> *tst2.b* in Donaria (GSHO 1781); *tst2.b* in Bowman (PI 483237)\*5
> (GSHO 2280).

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 3\. Scholz, F. 1956. Mutationsversuche an Kulturpflanzen. V. Die
> Vererbung zweier sich variabel manifestierender Übergangsmerkmale von
> bespelzter zu nackter Gerste bei röntgeninduzierten Mutanten.
> Kulturpflanze 4:228-246.
>
> 4\. Scholz, F., and O. Lehmann. 1958. Die Gaterslebener Mutanten der
> Saatgerste in Beziehung zur Formenmannigfaltigkeit der Art *Hordeum
> vulgare* L.s.l.I. Kulturpflanze 6:123-166.

Prepared:

> J.D. Franckowiak and U. Lundqvist. 2002. BGN 32:137.

Revised:

> J.D. Franckowiak. 2005. BGN 35:193. (Locus symbol was changed from
> *lin2*.)
>
> J.D. Franckowiak. 2007. BGN 37:292.

Number range CHAPTERBGS 653, Brachytic 10, *brh10*

Stock number: BGS 653

Locus name: Brachytic 10

Locus symbol: *brh10*

Previous nomenclature and gene symbolization:

> Brachytic-l = *brh.l* (3).

Inheritance:

> Monofactorial recessive (3, 4).
>
> Located in chromosome 2HS (1), approximately 12.9 cM distal from SSR
> marker Bmac0850 in bin 2H-08 (1).

Description:

> Plants are about 3/4 normal height and peduncles are over 3/4 normal
> length. Awns are about 3/4 of normal length. Rachis internodes are
> slightly shorter than those of normal sibs, but the number of fertile
> rachis nodes is increased by over 2. Seedling leaves of *brh10* plants
> are relatively short. Kernels of the Bowman *brh10* line are shorter
> (7.3 vs. 9.6 mm) and about 20% lighter than those of Bowman. Plants
> have and erect growth habit and grain yields averaged 20% less than
> those of Bowman (1, 2).

Origin of mutant:

> A sodium azide induced mutant in Birgitta (NSGC 1870, NGB 1494, NGB
> 14667) (5).

Mutational events:

> *brh10.l* in Birgitta (17:15:2, DWS1007) (4, 5).

Mutant used for description and seed stocks:

> *brh10.l* in Birgitta (GSHO 1677); *brh10.l* in Bowman (PI 483237)\*7
> (GSHO 2171).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:293.

Number range CHAPTERBGS 654, Brachytic 11, *brh11*

Stock number: BGS 654

Locus name: Brachytic 11

Locus symbol: *brh11*

Previous nomenclature and gene symbolization:

> Brachytic-n = *brh.n* (3).

Inheritance:

> Monofactorial recessive (3, 4).
>
> Located in chromosome 5HS \[7S\] (1), about 6.7 cM proximal from SSR
> marker Bmac0113 in bin 5H-04 (1).

Description:

> Plants are 2/3 to 3/4 normal height and peduncles are 3/4 to 5/6
> normal length. The length of the rachis internodes is about 3/4 as
> long as those of normal sibs. Seedling leaves of *brh11* plants are
> relatively short. Kernels of the Bowman *brh11* line are shorter (7.2
> vs. 9.6 mm) and about 25% lighter than those of Bowman. Plants have an
> erect growth habit and grain yields of the *brh11* line averaged less
> than 1/2 of those for Bowman (1, 2).

Origin of mutant:

> A sodium azide induced mutant in Birgitta (NSGC 1870, NGB 1494, NGB
> 14667) (5).

Mutational events:

> *brh11.n* in Birgitta (17:19:2, DWS1011) (4, 5).

Mutant used for description and seed stocks:

> *brh11.n* in Birgitta (GSHO 1679); *brh11.n* in Bowman (PI 483237)\*6
> (GSHO 2172).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:294.

Number range CHAPTERBGS 655, Brachytic 12, *brh12*

Stock number: BGS 655

Locus name: Brachytic 12

Locus symbol: *brh12*

Previous nomenclature and gene symbolization:

> Brachytic-o = *brh.o* (3).

Inheritance:

> Monofactorial recessive (3, 4).

Located in chromosome 5HS \[7S\] (1), approximately 13.5 cM distal from
SSR marker Bmag0387 in bin 5H-03 (1).

Description:

> Plants are 2/3 to 3/4 of normal height. Awns and peduncles are about
> 3/4 normal length. The length of the rachis internodes is about 3/4 of
> normal sibs. Seedling leaves of *brh12* plants are relatively short.
> Kernels of the Bowman *brh12* line are shorter (7.9 vs. 9.6 mm) and
> about 20% lighter than those of Bowman. Grain yields of the *brh12*
> line averaged slightly more than 1/2 of those for Bowman (1, 2).

Origin of mutant:

> A sodium azide induced mutant in Birgitta (NSGC 1870, NGB 1494, NGB
> 14667) (5).

Mutational events:

> *brh12.o* in Birgitta (17:20:2, DWS1012) (4, 5).

Mutant used for description and seed stocks:

> *brh12.o* in Birgitta (GSHO 1680); *brh12.o* in Bowman (PI 483237)\*7
> (GSHO 2173).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:295.

Number range CHAPTERBGS 656, Brachytic 13, *brh13*

Stock number: BGS 656

Locus name: Brachytic 13

Locus symbol: *brh13*

Previous nomenclature and gene symbolization:

> Brachytic-p = *brh.p* (3).

Inheritance:

> Monofactorial recessive (3, 4).

Located in chromosome 5HS \[7S\] (1), approximately 8.7 cM distal from
SSR marker Bmag0387 in bin 5H-03 (1).

Description:

> Plants are about 2/3 normal height and awns are about 1/2 normal
> length. Peduncles and leaf blades are about 2/3 and 3/4 normal length,
> respectively. The length of the rachis internodes is about 3/4 of that
> of Bowman. The spikelets at the tip of the spike are close together
> giving a fascinated appearance. Seedling leaves of *brh13* plants are
> relatively short. Plants lodge relatively easily. Kernels of the
> Bowman *brh13* line are about the same size as those of Bowman, but
> kernel weights are about 20% less. The *brh13* plants have and erect
> growth habit and their grain yields are about 1/2 of those Bowman (1,
> 2).

Origin of mutant:

> A sodium azide induced mutant in Birgitta (NSGC 1870, NGB 1494, NGB
> 14667) (5).

Mutational events:

> *brh13.p* in Birgitta (18:02:4, DWS1013) (4, 5).

Mutant used for description and seed stocks:

> *brh13.p* in Birgitta (GSHO 1681); *brh13.p* in Bowman (PI 483237)\*6
> (GSHO 2174).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Lehmann, L.C. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:296.

Number range CHAPTERBGS 657, Brachytic 15, *brh15*

Stock number: BGS 657

Locus name: Brachytic 15

Locus symbol: *brh15*

Previous nomenclature and gene symbolization:

> Brachytic-u = *brh.u* (3)**.**

Inheritance:

> Monofactorial recessive (2, 3).
>
> Location is unknown (1).

Description:

> Plants have numerous tillers with small leaves, spikes, and kernels.
> Prior to heading plants appear to be grassy culms similar to those
> produced by the *sld2* (slender dwarf 2) and *sld4* (slender dwarf 4)
> mutants, but heading is not drastically delayed. Culms and peduncles
> are about 1/2 normal length. Awns and rachis internodes are slightly
> shorter than those of normal sibs. Leaf blades are narrow and about
> 1/2 normal length. Mutant plants headed 2 to 3 days later than normal
> sibs. No lodging was observed. Spikes of *brh15* plants had nearly 4
> fewer kernels than those of Bowman. Kernels of the Bowman *brh15* line
> are slightly shorter (8.6 vs. 9.6 mm), thinner (3.4 vs. 3.8 mm), and
> about 30% lighter than those of Bowman. The grain yield of the *brh15*
> line averaged about 2/3 of that recorded for Bowman (1, 2).

Origin of mutant:

> A N-methyl-N-nitrosourea induced mutant in Julia (PI 339811) (5, 6).

Mutational events:

> *brh15.u* in Julia (409 JK, DWS1156) (4, 6).

Mutant used for description and seed stocks:

> *brh15.u* in 409 JK/Bowman (GSHO 1685); *brh15.u* in Bowman (PI
> 483237)\*5 (GSHO 2176).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Micke, A. and M. Maluszynski, M. 1984. List of semi-dwarf cereal
> stocks. *In* Semi-dwarf Cereal Mutants and Their Use in Cross-breeding
> II. IAEA-TECDOC-307. IAEA, Vienna.
>
> 6\. Szarejko I., M. Maluszynski, M. Nawrot, and B. Skawinska-Zydron,
> 1988. Semi-dwarf mutants and heterosis in barley. II. Interaction
> between several mutant genes responsible for dwarfism in barley. p.
> 241-246. *In* Semi-dwarf Cereal Mutants and their Use in
> Cross-breeding III. IAEA- TECDOC-455, IAEA, Vienna.

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:297.

Number range CHAPTERBGS 658, Brachytic 17, *brh17*

Stock number: BGS 658

Locus name: Brachytic 17

Locus symbol: *brh17*

Previous nomenclature and gene symbolization:

> Semidwarf mutant = Mo4 (5)**.**
>
> Brachytic-ab = *brh.ab* (3).

Inheritance:

> Monofactorial recessive (3, 4).
>
> Located in chromosome 5HS \[7L\] (1), approximately 11.6 cM proximal
> from SSR marker Bmag0387 in bin 5H-03 (1).

Description:

> Plants are about 3/4 normal height and awns are 5/6 of normal length.
> Peduncles are slightly shortened. Rachis internodes are about 20%
> shorter than those of normal sibs. Seedling leaves of *brh17* plants
> are relatively short. Kernels of the Bowman *brh17* line are shorter
> (7.7 vs. 9.6 mm) and about 20% lighter than those of Bowman. Lodging
> is reduced in the backcross-derived line and grain yields averaged
> slightly less than those of Bowman (1, 2).

Origin of mutant:

> A sodium azide induced mutant in Morex (CIho 15773) (6).

Mutational events:

> *brh17.ab* in Morex (Wa14355-83, Mo4, DWS1260) (4, 5).

Mutant used for description and seed stocks:

> *brh17.ab* in Morex (GSHO 1669); *brh17.ab* in Bowman (PI 483237)\*6
> (GSHO 2181).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Nedel, J.L., S.E. Ullrich, J.A. Clancy, and W.L. Pan. 1993. Barley
> semidwarf and standard isotype yield and malting quality response to
> nitrogen. Crop Sci. 33:258-263.
>
> 6\. Ullrich, S.E., and Aydin, A. 1988. Mutation breeding for
> semi-dwarfism in barley. p. 135-144. *In* Semi-dwarf Cereal Mutants
> and Their Use in Cross-breeding III. IAEA-TECDOC-455. IAEA, Vienna.

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:298.

Number range CHAPTERBGS 659, Brachytic 18, *brh18*

Stock number: BGS 659

Locus name: Brachytic 18

Locus symbol: *brh18*

Previous nomenclature and gene symbolization:

> Brachytic-ac = *brh.ac* (3).

Inheritance:

> Monofactorial recessive (3, 4).
>
> Located in chromosome 5HS \[7L\] (1), approximately 9.2 cM distal from
> SSR marker Bmac0163 in bin 5H-01(1).

Description:

> Plants are about 2/3 normal height and awns are less than 2/3 of
> normal length. Peduncles are slightly coiled and about 5/6 the length
> of those of normal sibs. Rachis internodes are about 20% shorter than
> those of Bowman. Seedling leaves of *brh18* plants are relatively
> short. Kernels of *brh18* plants are similar in weight to those of
> Bowman, but slightly shorter. Lodging is reduced, but grain yields
> averaged slight more than 1/2 of those for Bowman (1, 2).

Origin of mutant:

> An induced mutant backcrossed into Triumph (CIho 11612, GSHO 2465)
> (5).

Mutational events:

> *brh18.ac* in mo6/4\*Triumph (402B, DWS1277) (4, 5).

Mutant used for description and seed stocks:

> *brh18.ac* in Mo6/4\*Triumph (GSHO 1670); *brh18.ac* in Bowman (PI
> 483237)\*6 (GSHO 2182).

References:

> 1\. Dahleen, L.S., L.J. Vander Wal, and J.D. Franckowiak. 2005.
> Characterization and molecular mapping of genes determining
> semidwarfism in barley. J. Hered. 96:654-662.
>
> 2\. Franckowiak, J.D. (Unpublished).
>
> 3\. Franckowiak, J.D. 1995. The brachytic class of semidwarf mutants
> in barley. Barley Genet. Newsl. 24:56-59.
>
> 4\. Franckowiak, J.D., and A. Pecio. 1992. Coordinator's report:
> Semidwarf genes. A listing of genetic stocks. Barley Genet. Newsl.
> 21:116-127.
>
> 5\. Falk, D. 1985. (Personal communications).

Prepared:

> J.D. Franckowiak and L.S. Dahleen. 2007. BGN 37:299.

Number range CHAPTERBGS 660, Narrow leafed dwarf 2, *nld2*

Stock number: BGS 660

Locus name: Narrow leafed dwarf 2

Locus symbol: *nld2*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (1, 2).
>
> Location is unknown.

Description:

> Mutant plants have narrow, dark green leaves, which are erect with
> well-developed midribs. Auricles degenerate to tiny projections, but
> ligules are normal. Stem internodes are short, and the upper ones are
> curved. Spikelets are relatively narrow and small, and seed set may be
> low. Kernels of the Bowman *nld2* line are thinner (3.2 vs. 3.8 mm)
> and about 35% lighter than those of Bowman (1). Plants are 1/2 to 1/3
> of normal height, the spike commonly emerges from the side of the
> sheath before anthesis. Awns of the *nld2.b* line are similar in
> length to those of Bowman. The *nld2.b* Bowman line is more vigorous
> than *nld1.a* in Christchurch, New Zealand and in North Dakota
> greenhouse nurseries, but *nld1.a* was more vigor in the Dundee,
> Scotland nursery. Seed yields are generally less than 20% of those of
> Bowman (1).

Origin of mutant:

> A fast neutron induced mutant in Steptoe (CIho 15229) (2).

Mutational events:

> *nld2.b* in Steptoe (2).

Mutant used for description and seed stocks:

> *nld2.b* in Steptoe; *nld2.b* in Bowman (PI 483237)\*6.

References:

> 1\. Franckowiak, J.D. (Unpublished).
>
> 2\. Kleinhofs, A. (Unpublished).

Prepared:

> J.D. Franckowiak and A. Kleinhofs. 2007. BGN 37:300.

Number range CHAPTERNumber range CHAPTERBGS 661, Double seed 1, *dub1*

Stock number: BGS 661

Locus name: Double seed 1

Locus symbol: *dub1*

Previous nomenclature and gene symbolization:

> None.

Inheritance:

> Monofactorial recessive (2).
>
> Located in chromosome 5HL \[7L\] (2), near AFLP marker E4038-4 in
> subgroups 66 to 67 of the Proctor/Nudinka map (2).

Description:

> The modification of the top of spike is distinctive and occurs on all
> tillers. The tip of the spike is compacted and a few spikelets form
> two and three fertile florets adjacent to each other. The double
> spikelets have fused lemmas and paleas often enclose the part of two,
> occasionally more, flowers: six anthers and two ovaries (1). The tip
> of the spike appears phenotypically similar to those of *int-m*
> (intermedium spike-m) mutants (1).

Origin of mutant:

> An X-ray and ferrisulfate induced mutant in Bonus (PI 189763) (1).

Mutational events:

> *dub1.1* (NGB 114331), *dub1.2* (NGB 114332) in Bonus (1); *dub1.3*
> (NGB 114333), *dub1.7* (NGB 114337), *dub1.8* (NGB 114338), *dub1.9*
> (NGB 114339), *dub1.10* (NGB114340), *dub1.11* (NGB 114341), *dub1.12*
> (NGB 114342) in Foma (CIho 11333) (1); *dub1.18a* (NGB 114345),
> *dub1.18b* (NGB 114346, 114347) in Kristina (NGB 1500) (1); *dub1.19*
> (NGB 114348), *dub1.20* (NGB 114349, 114350) in Bonus (1).

Mutant used for description and seed stocks:

> *dub1.1* (NGB 114331) in Bonus (2).

References:

> 1\. Lundqvist, U. (Unpublished).
>
> 2\. Pozzi, C., D. di Pietro, G. Halas, C. Roig, and F. Salamini. 2003.
> Integration of a barley (*Hordeum vulgare*) molecular linkage map with
> the position of genetic loci hosting 29 developmental mutants.
> Heredity 90:390-396.

Prepared:

> U. Lundqvist and J.D. Franckowiak. 2007. BGN 37:301.