**ANNUAL REPORT**

**Calendar Year 2006**

**1. [NRSP-6: UNITED STATES POTATO GENEBANK]{.underline}**

> Introduction, Classification, Preservation, Evaluation and
> Distribution of tuber-bearing *Solanum* Species.

**2. [COOPERATIVE AGENCIES AND PRINCIPAL LEADERS]{.underline}**

  ------------------------------------------------------ ----------------------------------
  **[State Agricultural Experimental                     **[Representative]{.underline}**
  Stations]{.underline}**                                

                                                         

  Southern Region Chairman (2007)                        J. C. Miller, Jr.

  Western Region                                         I. Vales

  North Central Region Secretary (2007)                  D. S. Douches

  Northeastern Region                                    W. De Jong
  ------------------------------------------------------ ----------------------------------

> **[United States Department of Agriculture]{.underline}**

+---------------------------------------+-------------+----------------+
| Agricultural Research Service         |             |                |
+---------------------------------------+-------------+----------------+
| Technical Representative              |             | C. R. Brown    |
| Vice-Chair(2007)                      |             |                |
+---------------------------------------+-------------+----------------+
| National Program Staff                |             | P. K. Bretting |
+---------------------------------------+-------------+----------------+
| Area Director, Midwest Area           |             | S. Shafer      |
+---------------------------------------+-------------+----------------+
| Cooperative States Research Education |             | A. M. Thro     |
|                                       |             |                |
| & Extension Service                   |             |                |
+---------------------------------------+-------------+----------------+
| Animal and Plant Health Inspection    |             | M.D. Bandla    |
| Service                               |             |                |
+---------------------------------------+-------------+----------------+
| Inter-Regional Potato Introduction    |             | J. B. Bamberg  |
| Project Project Leader                |             |                |
+---------------------------------------+-------------+----------------+

+----------------------------------------------------+-----------------+
| # Agriculture Canada                               | T. R. Tarn      |
+----------------------------------------------------+-----------------+

> **[Administrative Advisors]{.underline}**

  ------------------------------------------------------ ----------------
  Southern Region                                        R. Guthrie

  Western Region                                         C. Y. Hu

  North Central Region Lead                              S. A. Slack

  Northeastern Region                                    S. D. Reiling
  ------------------------------------------------------ ----------------

**3**. **[PROGRESS AND PRINCIPAL ACCOMPLISHMENTS]{.underline}**

**A. [Introduction of New Stocks]{.underline}**

A total of 41 accessions were assigned PI numbers in 2006: one clone
from Korea, one late blight clone from Mexico, one mapping population
parent from CIP, 25 tuber moth resistant clones from CIP, and 13
accessions collected from Arizona. These accessions are now available
from the NRSP-6 *Solanum* germplasm collection.

The NRSP-6 web page (http://www.ars-grin.gov/nr6) has been updated to
include all new stocks and screening information. Clientele that have
ordered from NRSP-6 in the past four years are contacted three times per
year informing them of new materials that are now available either as
true seed, tubers, in vitro plantlets, or herbarium samples. A new
service we are offering is dried ground leaf samples for DNA. For
foreign requesters this is useful since there are no quarantine
restrictions on dried material.

**B. [Classification ]{.underline}**

Dr. Spooner et al. have published and are working on five different
areas of potato research: 1) molecular markers for genebank studies, 2)
cultivated potato origins, 3) relationships in wild tomatoes and
potatoes, 4) the predictive power of taxonomy relative to disease
resistance data, and 5) linkage map of late blight in wild potatoes.

**C. [Preservation and Increase of Stocks]{.underline}**

In 2006, a total of 223 accessions were increased as botanical seed
populations.

A total of 600 potato spindle tuber viroid (PSTVd) tests were performed
on seed increase parents, seedlots and research materials. Germination
tests were performed on 1,307 accessions, ploidy determinations were
made on 40 accessions, and tetrazolium seed viability tests were done on
31 seedlots.

**D. [Evaluation]{.underline}**

[International collaboration]{.underline}. 1) with CIP, study of the
impact of agrichemicals on *in situ* wild potato reproduction continued,
and we initiated a related project to assess the impact of mining
pollution on wild potato reproduction. The frost resistant breeding
family developed by NRSP-6 staff was evaluated in Peru, and results
appear to be promising. The elite clonal selections from this population
grown in Hancock, Wisconsin had good tuber type and cold hardiness to
--5^o^C. 2) with CIP, calcium application trials in the highlands showed
impressive yield improvement, and suggest our parallel ongoing program
to enhance calcium uptake efficiency via *S. microdontum* introgression
might have impressive application in some locations in the Andes. 3)
with CIP, progress was made on a joint project to study *in situ*
germplasm capture (see below) and molecular-based assessment of allele
density. 4) with PICTICPAPA: The entire collection of *S. microdontum*
was evaluated for late blight in Toluca, Mexico (results pending).

[Nutritional]{.underline}. 1) Potato potassium is in a unique position
to mitigate hypertension, which has huge health and economic impact.
Potassium levels in the tubers are also correlated to the incidence of
black spot bruise. We screened and found significant species differences
in K uptake potential (funding anticipated from CGC). 2) Work continued
with Dr. C. Miller's lab screening for antioxidants in uncolored wild
potato species tubers. We found an important GxE effect, demonstrating
that some germplasm is only high antiox when grown artificially in the
greenhouse, not in the field (two papers submitted). 3) Plans were made
to preselect and screen the primitive cultivated species collection for
high phenolics. 4) We began researching and planning experiments to
examine anticancer potential of high tuber tomatine. 5) We characterized
exotics and adapted materials for Potato Carboxypeptidase Inhibitor, a
tiny heat- and digestion-resistant protein reported to inhibit some of
the most pernicious human cancers (funded by the Crop Germplasm
Committee, CGC). We staged parents for making and testing segregating
hybrids for all of these traits.

[Mutants and other new traits]{.underline}. 1) We initiated crossing for
adapted tubers in the background of the *crazy sepal* sterile floral
mutant. BSA of *crazy* and flowering plants are planned for a fair test
of the potential yield improvement without the sink in flowers. 2)
Continued tests to relate tuber pH to other traits like calcium and
antiox. *S. microndontum* was newly identified as a species for which
some populations' tubers are extremely acidic (10x most cultivated
types). 3) Produced calcium introgression hybrids at 2x and 4x level and
evaluated in WI and Hawaii. 4) Confirm that other GA mutants published
as *pito* and *ga2* are both likely the same as our *ga1*. Staged for
study of spontaneous reversion to the functional allele. 5) Purple-less
*fendleri*: Eliminated genome suppression as explanation for distorted
segregation observed in some mutant testcrosses.

[Genebank technology and diversity management]{.underline}. 1) Found
that long-term germination is declining more rapidly outside of local
-20 and NSSL storage, so moved our active inventory to -20. 2) Found
germination is not biased by density of sowing. 3) Found seedlots
generated in 1986 with and without extra fertilization do not show clear
germination effect due to "seed quality" after 20-yr storage. 4) Found
seedlings are taller under sodium vs metal halide lamps. 5)
Characterized 100 *microdontum* pops for pH, calcium, antiox, *cs1*
mutant and late blight pursuant to testing effectiveness of DNA-based
core collection within a species. 6) Tested seed increase phenology and
found later summer plantings produce more seeds per pollination. 7) With
CIP cooperators continued case study of capture of diversity at
easy-vs-hard collecting sites. 8) Found proximity of other species does
not explain distinction of northern *S. verrucosum* populations in
Mexico. 9) Published results showing small DNA differences between
reputed duplicates in NRSP-6 and CIP collections. 10) Published
conclusion that no loss of diversity happens at selection of excess
small seedlings at transplant for inbred species.

**E. [Distribution]{.underline}**

> NRSP-6 distributions are shown in the table below. Stocks were sent to
> clientele in 25 states of the USA and 11 other countries.

## 

## VOLUME AND TYPES OF STOCKS DISTRIBUTED

  ---------- -------- ------ ------- ------ ------ ----- ------ -- -------- -------
  Units^1^                                                                  

  Category   S        TF     TS      IVS    DNA    PL    HERB      TOT      PIs

  Domestic   3,794    214    1,158   617    0      11    0         5,794    3,088

  Foreign    481      0      16      20     42     0     0         559      529

  NRSP-62    9,192    0      62      284    0      0     0         9,538    2,271

  Total      13,467   214    1,236   921    42     11    0         15,891   5,888
  ---------- -------- ------ ------- ------ ------ ----- ------ -- -------- -------

^1^ Types of stocks sent/(number of seeds, tubers or plantlets per
standard shipping unit): S= True Seeds/(50), TF= Tuber Families/(10),

TS=Tuber Stocks/(3), IVS=In Vitro Stocks/(1), DNA=DNA samples(1),
PL=Plants in plugs/(1), Her= Herbarium/(1).

^2^ Includes chromosome counts, germination tests, ID and Taxonomic
check plantings, in vitro maintenance, seed increases, PSTV tests,
miscellaneous plantings, and NSSL seed backup.

> **F. [Visitors From Other Countries]{.underline}**
>
> Dr. Shaoguan Duan China
>
> Dr. Liping Jin China
>
> Dr. Shuzhi Jaing China
>
> Dr. Kaiyun Xie China
>
> Dr. Wenbo Pan China
>
> Dr. Conghua Xie China
>
> Dr. Jun Liu China
>
> Dr. Nune Sarukhanyan Armenia

Dr. Klaus J. Dehmer Germany

> Dr. Glenn Bryan Scotland
>
> Dr. Gavin Ramsay Scotland
>
> Dr. Caroline Marques Castro Brazil

**4.** **[USEFULNESS OF FINDINGS]{.underline}**

> NRSP-6\'s purpose is to provide a ready source of raw materials,
> technology and information to support potato enhancement, breeding and
> research in the USA and around the world. Thus, one way the success of
> NRSP-6 can be measured is by the occurrence of NRSP-6 germplasm in the
> pedigrees of new, improved potato cultivars. Another is in the use of
> NRSP-6 stocks in more basic research programs, which is reflected in
> publications that provide information that ultimately contribute to
> better use of the germplasm resource.
>
> Nine cultivar releases were published in the American Journal of
> Potato Research in 2006: 'Dakota Jewel', 'Dakota Rose', 'Beacon
> Chipper', 'Reeves Kingpin', 'Western Russet', 'Gemstar Russet',
> 'Marcy', 'Defender', and 'White Pearl'. All of these are known to have
> wild species in their pedigrees.
>
> Section 6 lists 100 papers, 45 abstracts, and 4 theses which report
> the use of NRSP-6 *Solanum* introductions this year.

**5. [WORK PLANNED FOR 2007]{.underline}**

> Fast and accurate delivery of high quality germplasm and information
> will continue to be the general objective of NRSP-6. We also plan to
> raise awareness of the germplasm resource through an
> advertising/outreach program, and by conducting and publishing
> research that demonstrates new ways the germplasm can be useful for
> potato improvement.
>
> Evaluation will continue on *Solanum* species for the traits described
> for the past year, as funds are available.

**6. [PUBLICATIONS ISSUED DURING THE YEAR]{.underline}**

### Publications issued by NRSP-6 Personnel

> Bamberg, John. 2006. *Crazy Sepal*: A new floral *sepallata*-like
> mutant in the wild potato *Solanum microdontum* Bitter. Am J Potato
> Res 83:433-435.
>
> Bamberg, J.B. and A. del Rio. 2006. Seedling transplant selection does
> not cause genetic shifts in genebank populations of inbred potato
> species. Crop Sci 46:424-427.
>
> Bamberg, John, Charles Fernandez and Alfonso del Rio. 2006. A new wild
> potato mutant in *Solanum stoloniferum* Schltdl. lacking purple
> pigment. Am J Potato Res 83:437-445.
>
> Bamberg, J., J.P. Palta and M. Martin. 2006. Using a wild species, *S.
> microdontum*, to move high calcium trait to the cultivated potatoes.
> *In* Potato Association of America/Solanaceae 2006 Annual Meeting. p.
> 163 (Abstract)
>
> Busse, J.S., J. Bamberg and J.P. Palta. 2006. Correlation between
> aerial and tuber calcium accumulation in Solanum genotypes segregating
> for tuber calcium uptake efficiency. *In* Potato Association of
> America/Solanaceae 2006 Annual Meeting. p. 204 (Abstract)
>
> Del Rio, A.H., J.B. Bamberg and Z. Huaman. 2006. Genetic equivalence
> of putative duplicate germplasm collections held at CIP and US Potato
> Genebanks. Am J Potato Res 83:279-285.
>
> Del Rio, Alfonso, John B. Bamberg and Charles Fernandez. 2006.
> Assessment of the genetic structure of *in situ* populations of wild
> potato *Solanum fendleri* eco-geographically dispersed in the
> Chiricahua mountains, Arizona. Am J Potato Res 83:108. (Abstract)
>
> Ghislain, M., D. Andrade, F. Rodriguez, R.J. Hijmans, and D.M.
> Spooner. 2006. Genetic analysis of the cultivated potato *Solanum
> tuberosum* L. Phureja Group using RAPDs and nuclear SSRs. Theor Appl
> Genet 113:1515-1527.
>
> Jansky, S.H., R. Simon and D.M. Spooner. 2006. Testing taxonomic
> predictivity. Crop Sci 46:2561-2570.
>
> Kuang, H.H., F.S. Wei, M.R. Marano, U. Wirtz, X.X. Wang, J. Liu, W.P.
> Shum, J. Zaborsky, L.J. Tallon, W. Rensink, S. Lobst, P.F. Zhang, C.E.
> Tornqvist, A. Tek, J. Bamberg, J. Helgeson, W. Fry, F. You, M.C. Luo,
> J.M. Jiang, C.R. Buell, and B. Baker. 2005. The *R1* resistance gene
> cluster contains three groups of independently evolving, type I *R1*
> homologues and shows substantial structural variation among haplotypes
> of *Solanum demissum*. Plant J 44(1):37-51.
>
> Lozoya-Saldana, H., O. Barrios and John Bamberg. 2006. *Phytophthora
> infestans*: races vs genotypes in the Toluca Valley, Mexico. Am J
> Potato Res 83:122. (Abstract)
>
> Nzaramba, Ndambe M., John Bamberg, Douglas C. Scheuring, and J.
> Creighton Miller Jr. 2006. Antioxidant activity in *Solanum* species
> as influenced by seed type and growing location. Am J Potato Res
> 83:127. (Abstract)
>
> Peralta, I.E., S. Knapp and D.M. Spooner. 2006. Nomenclature for wild
> and cultivated tomatoes. Rep Tomato Genet Coop 56:6-12.
>
> Spooner, D.M. and A. Salas. 2006. Structure, biosystematics, and
> genetic resources. In: J. Gopal and S.M. Paul Khurana (eds.) Handbook
> of potato production, improvement, and post-harvest management.
> Haworth's Press, Inc., Binghampton, New York. Pgs.1-39.
>
> Vega, S.E., M. Aziz, J. Bamberg, A. Verma, and J.P. Palta. 2006.
> Screening potato germplasm for carboxy-peptidase inhibitor and its
> potential anticancer property. *In* Potato Association of
> America/Solanaceae 2006 Annual Meeting. p. 160 (Abstract)
>
> Vega, S.E., J.P. Palta and J. Bamberg. 2006. Exploiting cultivated
> germplasm to breed for enhanced tuber quality. *In* A.J. Bussan and M.
> Drilias (eds.). Proceedings of the Wisconsin's Annual Potato Meeting.
> pp. 143-144. (Abstract)
>
> Vega, Sandra E., John B. Bamberg and Jiwan P. Palta. 2006.
> Gibberellin-deficient dwarfs in potato vary in exogenous GA~3~
> response when the *ga~1~* allele is in different genetic backgrounds.
> Am J Potato Res 83:357-363.
>
> Vega, Sandra E., Jiwan P. Palta and John B. Bamberg. 2006. Root zone
> calcium can modulate GA induced tuberization signal. Am J Potato Res
> 83:135. (Abstract)
>
> Vega, Sandra E., Jiwan P. Palta and John B. Bamberg. 2006. Exploiting
> cultivated germplasm to breed for enhanced tuber calcium accumulation
> ability. Am J Potato Res 83:136. (Abstract)

A.  **[Journal Articles and Abstracts Reporting Research with NRSP-6
    Stocks]{.underline}**

> Andrivon, D., R. Pellé and D. Ellissèche. 2006. Assessing resistance
> types and levels to epidemic diseases from the analysis of disease
> progress curves: principles and application to potato late blight. Am
> J Potato Res 83:455-461.
>
> Blanco, M. and R. Valverde. 2005. Bulk segregant analysis (BSA) for
> the detection of AFLPs linked to the PVX resistance gene in *Solanum
> commersonii*. Agronomia Costarricense 29(2):45-55.
>
> Blanco, M. and R. Valverde. 2005. Identification and mapping of AFLPs
> linked to the PVX resistance gene in *Solanum commersonii*. Agronomia
> Costarricense 29(2):57-71.
>
> Bradeen, J.M., M.J. Sanchez and D.S. Mollov. 2006. Multi-genotype
> allelic mining at the RB late blight resistance locus reveals broad
> allele distribution and an in planta recombination event. Am.
> Phytopathological Society Annual Meeting, Quebec, City, Canada.
> (Abstract)
>
> Bradeen, J.M., B.P. Millett and D.S. Mollov. 2006. In Planta
> transcriptional and functional patterns of an agriculturally relevant
> R gene. Society for In Vitro Biology meeting, Minneapolis, MN. Invited
> presentation as part of "Genomics of Plant Microbe Interactions"
> Colloquium. (Abstract)
>
> Bradshaw, J.E., G.J. Bryan, A.K. Lees, K. McLean, and R.M.
> Solomon-Blackburn. 2006. Mapping the *R10* and *R11* genes for
> resistance to late blight (*Phytophthora infestans*) present in the
> potato (*Solanum tuberosum*) R-gene differentials of Black. Theor Appl
> Genet 112(4):744-751.
>
> Brown, C.R., W. De Jong and C-P Yang. 2006. Inheritance of total
> Carotenoid in high-content diploid germplasm. Am J Potato Res 83:99.
> (Abstract)
>
> Brown, C.R., T.S. Kim, Z. Ganga, K. Haynes, D. De Jong, M. Jahn, I.
> Paran, and W. De Jong. 2006. Segregation of total Carotenoid in high
> level potato germplasm and its relationship to beta-carotene
> hydroxylase polymorphism. Am J Potato Res 83:365-372.
>
> Brown, C.R., H. Mojtahedi, S. James, R.G. Novy, and S. Love. 2006.
> Development and evaluation of potato breeding lines with introgressed
> resistance to Columbia root-knot nematode (*Meloidogyne chitwoodi*).
> Am J Potato Res 83:1-8.
>
> Bu, QingYun, Liang Wu, ShiHu Yang, and JianMin Wan. 2006. Cloning of a
> potato proteinase inhibitor gene *PINII-2x* from diploid potato
> (*Solanum phureja* L.) and transgenic investigation of its potential
> to confer insect resistance in rice. J Integrative Pl Bio
> 48(6):732-739.
>
> Busse, J.S. and J.P. Palta. 2006. Investigating the in vivo calcium
> transport path to developing potato tuber using ^45^Ca: a new concept
> in potato tuber calcium nutrition. Physiologia Plantarum
> 128(2):313-323.
>
> Cadena, M., A. Naranjo and C.E. Nustez. 2005. Evaluating the response
> of 60 *Solanum phureja* (Juz. *et* Buk.) genotypes to attacks by the
> Guatemalan moth (*Tecia solanivora* Povolny). Agro Colombiana
> 23(1):112-116.
>
> Caromel, B., D. Mugniery, M.C. Kerlan, S. Andrzejewski, A. Palloix, D.
> Ellisseche, F. Rousselle-Bourgeois, and V. Lefebvre. 2005. Resistance
> quantitative trait loci originating from *Solanum sparsipilum* act
> independently on the sex ratio of *Globodera pallida* and together for
> developing a necrotic reaction. Mol Pl-Microbe Interact
> 18(11):1186-1194.
>
> Castelli, L., G. Bryan, V.C. Blok, G. Ramsay, and M.S. Phillips. 2005.
> Investigation of resistance specificity amongst fifteen wild *Solanum*
> species to a range of *Globodera pallida* and *G. rostochiensis*
> populations. Nematology 7(5):689-699.
>
> Castelli, L., G. Bryan, V.C. Blok, G. Ramsay, and M.S. Phillips. 2005.
> Life stage responses observed amongst fifteen wild *Solanum* species
> resistant to *Globodera pallida*. Nematology 7(5):701-711.
>
> Castelli, L., G. Bryan, V.C. Blok, G. Ramsay, M. Sobczak, T.
> Gillespie, and M.S. Phillips. 2006. Investigations of *Globodera
> pallida* invasions and syncytia formation within roots of the
> susceptible potato cultivar Desiree and resistant species *Solanum
> canasense*. Nematology 8(1):103-110.
>
> Chashinsky, A.V. and V.A. Kozlov. 2006. Use of genetic resources of
> potato in breeding for resistance to late blight. Questions of potato
> growing. Actual problems of a science and practice. Proc. Int. Conf.
> All-Russian Potato Research Institute, Moskov, 2006. pp. 406-412.
>
> Chen, Q., Y-Z Shi, H-Y Li, D. Beasley, D. Lynch, and M. Goettel. 2006.
> Incorporation and establishment of first somatic hybrids carrying both
> late blight and Colorado potato beetle resistance from Mexican wild
> species *Solanum pinnatisectum*. Am J Potato Res 83:101-102.
> (Abstract)
>
> Coca Morante, M. and N. Montealegre Villanueva. 2006. Short
> communication. Resistance to *Phytophthora infestans* in populations
> of wild potato species in the Sorata microcentre of genetic diversity,
> La Paz, Bolivia. Spanish J Ag Res 4(2): 156-160.
>
> Colton, L.M., H.I. Groza, S.M. Wielgus, and J. Jiang. 2006.
> Marker-assisted selection for the broad-spectrum potato late blight
> resistance conferred by gene *RB* derived from a wild potato species.
> Crop Sci 46:589-594.
>
> Connor, T. and P. Barrell. 2005. Resistance to soft rot: *Solanum
> brevidens* as a source of resistance to soft rot for potato breeding.
> Grower 60(10):55-56.
>
> Coombs, J.J., D.S. Douches, S.G. Cooper, E.J. Grafius, W.L. Pett, and
> D.D. Moyer. 2005. Combining natural and engineered host plant
> resistance mechanisms in potato for Colorado potato beetle: choice and
> no-choice field studies. J Am Soc Hort Sci 130(6):857-864.
>
> Cooper, Susannah, David Douches, Joseph Coombs, and Edward J. Grafius.
> 2006. Evaluating natural and engineered resistance mechanisms in
> potato (*Solanum tuberosum* L.) against Colorado potato beetle
> (*Leptinotarsa decemlineata* Say) in a no-choice field study. Am J
> Potato Res 83:104. (Abstract)
>
> Couch, B.C., R. Spangler, C. Ramos, and G. May. 2006. Pervasive
> purifying selection characterizes the evolution of *I2* homologs. Mol
> Pl-Microbe Interact 19(3):288-303.
>
> Daniell, H., S.B. Lee, J. Grevich, C. Saski, T. Quesada-Vargas, C.
> Guda, J. Tomkins, and R.K. Jansen. 2006. Complete chloroplast genome
> sequences of *Solanum bulbocastanum* and *Solanum Lycopersicum*, and
> comparative analyses with other Solanaceae genomes. Theor Appl
> Genetics 112(8):1503-1518.
>
> Davis, J.A., E.B. Radcliffe and D.W. Ragsdale. 2006. Identifying and
> mapping resistance to green peach aphid, *Myzus persicae* (Sulzer) in
> potato. 90^th^ Annual Meeting of The Potato Association of America,
> Madison, WI. July 24^th^, 2006. (Abstract)
>
> Davis, Jeffrey A., Edward B. Radcliffe, David W. Ragsdale, and
> Christian A. Thill. 2006. Identifying resistance to aphids in crosses
> with somatic fusions of *Solanum tuberosum* L. and *Solanum
> bulbocastanum* Dun. Am J Potato Res 83:106. (Abstract)
>
> De Jong, Walter S., Donald E. Halseth, Bill B. Brodie, Keith L. Perry,
> Joseph B. Sieczka, Barbara J. Christ, Gregory A. Porter, Ken M.
> Paddock, Michael W. Peck, and Robert L. Plaisted. 2006. Marcy: A
> chipping variety with resistance to common scab and the golden
> nematode. Am J Potato Res 83:189-193.
>
> D'hoop, Björn, João Paulo, Ben Vosman, Herman van Eck, Richard Visser,
> and Fred van Eeuwijk. 2006. Association mapping in tetraploid potato
> (*Solanum tuberosum* L.) -- a pilot study. EAPR, The Science of
> Selection, in Carlow, Ireland. (Abstract)
>
> D'hoop, Björn, M. João Paulo, Ben Vosman, Herman van Eck, Richard
> Visser, Rolf Mank, and Fred van Eeuwijk. 2006. Association Mapping in
> Potato (*Solanum tuberosum* L.). EUCARPIA XIII, Biometrics in Plant
> Breeding Section Meeting, in Zagreb, Croatia. (Abstract)
>
> De Jong, W.S., D.E. Halseth, B.B. Brodie, K.L. Perry, J.B. Sieczka,
> B.J. Christ, G.A. Porter, K.M. Paddock, M.W. Peck, and R.L. Plaisted.
> 2006. Marcy: A chipping variety with resistance to common scab and the
> golden nematode. Am J Potato Res 83:189-193.
>
> De Koeyer, D., Y. Pelletier, D. Ronis, C. Clark, and V. Burns. 2006.
> *Solanum oplocense*: a new source of resistance to Colorado potato
> beetle and processing quality attributes. Am J Potato Res 83:107-108.
> (Abstract)
>
> Dobson, G., D.W. Griffiths, H.V. Davies, and J.W. McNicol. 2004.
> Comparison of fatty acid and polar lipid contents of tubers from two
> potato species, *Solanum tuberosum* and *Solanum phureja*. J Ag Food
> Chem 52(20):6306-6314.
>
> Dorion, S., D.P. Matton and J. Rivoal. 2006. Characterization of a
> cytosolic nucleoside diphosphate kinase associated with cell division
> and growth in potato. Planta 224(1):108-124.
>
> Douches, D.S., J. Coombs, R. Hammerschmidt, W.W. Kirk, C. Long, S.
> Snapp, Ben Kudwa, Don Flannery, and Terry Bourgoin. 2006. Beacon
> Chipper: A round white chip-processing potato variety. Am J Potato Res
> 83:241-247.
>
> Escallón, R., M. Ramirez and C.E. Nustez. 2005. Evaluating potential
> yield and resistance to *Phytophthora infestans* (Mont. de Bary) in
> the *Solanum phureja* (Juz. *et* Buk.) yellow potato collection.
> Agronomia Colombiana 23(1):35-41.
>
> Evers, D., C. Schweitzer, N. Nicot, S. Gigliotti, M.R. Herrera, J.F.
> Hausman, L. Hoffmann, B. Trognitz, J. Dommes, and M. Ghislain. 2005.
> Two *PR-1* loci detected in the native cultivated potato *Solanum
> phureja* appear differentially expressed upon challenge by late
> blight. Physio Mol Pl Path 67(3/5):155-163.
>
> Fock, I., J. Luisetti, C. Collonnier, F. Vedel, G. Ducreux, H. Kodja,
> and D. Sihachakr. 2005. *Solanum phureja* and *S. stenotomum* are
> sources of resistance to *Ralstonia solanacearum* for somatic hybrids
> of potato. In: Bacterial wilt disease and the *Ralstonia solanacearum*
> species complex. C. Allen, P. Prior, and A.C. Hayward (eds.), St.
> Paul, MN, USA; Am Phytopath Soc (APS Press), pp. 253-259.
>
> Frost, K.E., S.H. Jansky and D.I. Rouse. 2006. Transmission of
> Verticillium wilt resistance to tetraploid potato via unilateral
> sexual polyploidization. Euphytica 149:281-287.
>
> Ganga, Z.N., G.A. Porter, D. Lambert, G. Sewell, and A. Bushway. 2006.
> Reeves Kingpin: a high yielding mid-season variety suitable for fry
> processing. Am J Potato Res 83:110. (Abstract)
>
> Ganga, Z.N., G.A. Porter, D.H. Lambert, G. Sewell, A. Bushway, and B.
> de los Reyes. 2006. Reeves Kingpin: A high-yielding mid-season potato
> variety suitable for fry processing. Am J Potato Res 83:141-147.
>
> Garry, G., G.A. Forbes, A. Salas, M. Santa Cruz, W.G. Perez, and R.J.
> Nelson. 2005. Genetic diversity and host differentiation among
> isolates of *Phytophthora infestans* from cultivated potato and wild
> Solanaceous hosts in Peru. Plant Path 54(6):740-748.
>
> Gebhardt, C., D. Bellin, H. Henselewski, W. Lehmann, J.
> Schwarzfischer, and J.P.T. Valkonen. 2006. Marker-assisted combination
> of major genes for pathogen resistance in potato. Theor Appl Genet
> 112(8):1458-1464.
>
> Germain, H., S. Rudd, C. Zotti, S. Caron, M. O'Brien, S.C. Chantha, M.
> Lagacé, F. Major, and D.P. Matton. 2005. A 6374 unigene set
> corresponding to low abundance transcripts expressed following
> fertilization in *Solanum chacoense* Bitt, and characterization of 30
> receptor-like kinases. Pl Mol Bio 59(3):515-532.
>
> Glynn, M. and J.R. Sowokinos. 2006. Marketing potential of advanced
> breeding clones. Valley Potato Grower 71(166):12-14.
>
> Glynn, M. and J.R. Sowokinos. 2006. Advanced potato clones with
> increased cold sweetening resistance (CSR). Valley Potato Grower
> 71(167):12-15.
>
> Greco, N., D. Carputo, L. Frusciante, G. Russo, and A. Brandonisio.
> 2005. Screening of clones of *Solanum* spp. for resistance to potato
> cyst nematodes, *Globodera rostochiensis* and *G. pallida*. Nematol
> Mediterranea 33(2)163-170.
>
> Groza, H.I., B.D. Bowen, W.R. Stevenson, J.R. Sowokinos, M.T. Glynn,
> C. Thill, S.J. Peloquin, A.J. Bussan, and J. Jiang. 2006. White
> Pearl - A chipping potato variety with high level of resistance to
> cold sweetening. Am J Potato Res 83:259-267.
>
> Hamidoghli, Yousef and K. Ward. 2006. Plant regeneration from
> protoplasts of *Solanum tuberosum* and *S. stoloniferum*. Hort Environ
> Bio 47(1):14-18.
>
> Hawkes, J.G. 2004. Hunting the wild potato in the South American
> Andes: memories of the British Empire potato collecting expedition to
> South America 1938-1939. Nijmegen, Netherlands; Botanical and
> Experiment Garden, University of Nijmegen, 223 pp.
>
> Haynes, K.G. and B.J. Christ. 2006. Improvements in foliar late
> blight-resistance in a diploid hybrid *Solanum phureja-S. stenotomum*
> population. Am J Potato Res 83:112-113. (Abstract)
>
> Haynes, Kathleen G. and Barbara J. Christ. 2006. Recurrent maternal
> half-sib selection improves resistance to foliar late blight in a
> diploid hybrid *Solanum phureja-Solanum stenotomum* population. Am J
> Potato Res 83:181-188.
>
> Horackova, V. and J. Domkarova. 2005. The Czech bank of potato genetic
> resources. Czech J Genet Plant Breed 41(3):117-119.
>
> Jansky, S.H. 2006. Overcoming hybridization barriers in potato. Plant
> Breeding 125:1-12.
>
> Jansky, S.H. and S.J. Peloquin. 2006. Advantages of wild diploid
> *Solanum* species over cultivated diploid relatives in potato breeding
> programs. Genet Resour Crop Evol 53:669-675.
>
> Karlsson, B.H., J.P. Palta and P.M. Crump. 2006. Enhancing tuber
> calcium concentration may reduce incidence of blackspot bruise injury
> in potatoes. HortSci 41(5):1213-1221.
>
> Keifenheim, D.L., A.G. Smith and C.B.S. Tong. 2006. Cloning and
> accumulation of anthocyanins biosynthesis genes in developing tubers.
> Am J Potato Res 83:233-239.
>
> Kouassi, A.B., M.C. Kerlan, M. Sobczak, J.P. Dantec, C. Rouaux, D.
> Ellisseche, and D. Mugniery. 2005. Genetics and phenotypic
> characterization of the hypersensitive resistance of *Solanum
> sparsipilum* to *Meloidogyne incognita*. Nematology 7(2):213-225.
>
> Kozlov, V.A. 2006. Dihaploids in potato breeding in Institute for
> potato growing of NAS of Belarus. Questions of potato growing. Actual
> problems of a science and practice. Proc. Int. Conf. All-Russian
> Potato Research Institute, Moskov, 2006. pp 388-391.
>
> Kuhl, Joseph C. and D.S. Douches. 2006. Characterization of *RB*
> transgenic potato lines. Am J Potato Res 83:118. (Abstract)
>
> Kumar, Vinod, Jai Gopal and K.R. Dhiman. 2005. Combining ability
> analysis for tuber yield and late blight in potato. Potato J
> 32(3/4):129-130.
>
> Li, H-Y, Q. Chen, D. Beasley, and M. Goettel. 2006. Karyotype and
> evaluation analysis of Mexican wild species and tetraploid potato
> *Solanum tuberosum* by fluorescence *in situ* hybridization. Am J
> Potato Res 83:118-119. (Abstract)
>
> Li, HaiYan, Qin Chen, D. Beasley, D.R. Lynch, and M. Goettel. 2006.
> Karyotypic evolution and molecular cytogenetic analysis of *Solanum
> pinnatisectum*, a new source of resistance to late blight and Colorado
> potato beetle in potato. Cytologia 71(1):25-33.
>
> Li, XianPing, ShuLian Li, QiJun Sui, QiongFen Yang, and JianMing Bai.
> 2006. Research on parthenogenesis induction in Yunnan potato
> cultivars. J Yunnan Ag University 21(3):293-296.
>
> Love, S.L., R.G. Novy, J. Whitworth, D.L. Corsini, J.J. Pavek, A.R.
> Mosley, M.J. Pavek, N.R. Knowles, C.R. Brown, S.R. James, and D.C.
> Hane. 2006. Western Russet: A new potato variety with excellent fresh
> market and frozen-fried processing quality and field resistance to
> common scab and PVY^o^. Am J Potato Res 83:161-169.
>
> Love, S.L., R.G. Novy, J. Whitworth, D.L. Corsini, J.J. Pavek, A.R.
> Mosley, M.J. Pavek, N.R. Knowles, C.R. Brown, S.R. James, D.C. Hane,
> and J.C. Miller. 2006. GemStar Russet: A potato variety with high
> yield, good culinary quality, excellent fresh market appearance, and
> resistance to common scab. Am J Potato Res 83:171-180.
>
> Lozoya-Saldana, H., D. Perales-Rosas, S.P. Fernandez-Pavia, and N.J.
> Grunwald. 2006. Characterization of *Phytophthora infestans* (Mont.)
> De Bary. II. Subpopulations obtained from wild *Solanum* species.
> Agrociencia (Montecillo) 40(3):325-333.
>
> Lu QiNeng and Yang Qing. 2006. cDNA cloning and expression of
> anthocyanins biosynthetic genes in wild potato (*Solanum
> pinnatisectum*). African J Biotech 5(10)"811-818.
>
> Madsen, Dorothy K., Kirsten K. Sorensen, Marianne H. Madsen, and Hanne
> Grethe Kirk. 2006. A CAPS marker derived from tomato
> 12-oxophytodienoate reductase shows putative co-segregation with
> potato late blight resistance. Am J Potato Res 83:349-355.
>
> Malakar, R.D. and W.M. Tingey. 2006. Aspects of tuber resistance in
> hybrid potatoes to potato tuber worm. Entomol Exp Appl 120:131-137.
>
> Malhotra, Kanam, Sandhya Agarwal, Debasis Patta-Nayak, and J.S.
> Minhas. 2005. Post-transcriptional silencing of *GA20OX1* in potato.
> Potato J 32(3/4):147-148.
>
> Marczewski, W., D. Strzelczyk-Zyta, J. Hennig, K. Witek, and C.
> Gebhardt. 2006. Potato chromosomes IX and XI carry genes for
> resistance to potato virus M. Theor Appl Genet 112(7):1232-1238.
>
> Marfil, C.F., R.W. Masuelli, J. Davison, and L. Comai. 2006. Genomic
> instability in *Solanum tuberosum* x *Solanum kurtzianum*
> interspecific hybrids. Genome 49(2):104-113.
>
> Medeiros, A.H. and W.M. Tingey. 2006. Glandular trichomes of *Solanum
> berthaultii* Hawkes and its hybrids with *S. tuberosum* L. affect
> nymph emergence, growth, development and survival of *Empoasca fabae*
> (Harris) (Homoptera: Cicadellidae). J Econ Entomol 99:1483-1489.
>
> Millett, B.P. and J.M. Bradeen. 2006. Development of allele-specific
> PCR and RT-PCR assays for clustered resistance genes using a potato
> late blight resistance transgene as a model. Theor Appl Genet
> 114:501-513.
>
> Millett, B.P. and J.M. Bradeen. 2006. Transgene-specific PCR and
> RT-PCR assays for the potato late blight R gene RB. Plant & Animal
> Genome XIV, San Diego, CA. (Abstract)
>
> Mollov, D.S., M.J. Sanchez and J.M. Bradeen. 2006. Does intergenic
> recombination play an important role in evolution of alleles at the RB
> late blight resistance locus? Plant & Animal Genome XIV, San Diego,
> CA. (Abstract)
>
> Murphy, Patrick, G. Wang-Pruski and D.M. Pinto. 2006. Identification
> of proteins involved in after-cooking darkening in potato. Am J Potato
> Res 83:124. (Abstract)
>
> Musmeci, S., P. Gambino, V. Innocenzi, S. Arnone, and A. Lai. 2005.
> Eliciting of resistance against potato tuber moth larvae in tubers of
> *Solanum tuberosum* (+) *S. pinnatisectum* hybrids. In: Proceedings of
> the Meeting of the Physiology Section of the European Assoc. for
> Potato Research, Viterbo, Italy; June 14-16, 2004. R. Casa and R.
> Viola (eds.). Acta Hort 684:135-141.
>
> Narayanan, Karthikeyan and Gefu Wang-Pruski. 2006. Gene expression
> studies on genetic control of after-cooking darkening in diploid
> potatoes. Am J Potato Res 83:124-125. (Abstract)
>
> Navarre, Roy, R. Shakya and J. Holden. 2006. Analysis of tuber
> phenolics compounds in diverse potato germplasm. Am J Potato Res
> 83:125. (Abstract)
>
> Navarro, F., B. Bowen, J. Jiang, H.I. Groza, and J.P. Palta. 2006.
> Development of varieties with enhanced resistance to common scab. *In*
> A.J. Bussan and M. Drilias (eds.). Proceedings of the Wisconsin's
> Annual Potato Meeting. pp. 135-142. (Abstract)
>
> Navarro, F., B. Bowen, J. Jiang, H.I. Groza, and J.P. Palta. 2006.
> Pedigree and performance of improved varieties and breeding lines of
> potato. In Potato Association of America/Solanaceae 2006 Annual
> Meeting. p. 154 (Abstract)
>
> Novy, R.G. 2006. The use of the wild potato species, *Solanum
> etuberosum*, in developing virus- and insect-resistant potato
> varieties. pp.174-177. In: G. Acquaah, Principles of Plant genetics
> and Breeding. Blackwell Publishing Ltd., Malden, Massachusetts, USA.
>
> Novy, R.G., S.L. Love, D.L. Corsini, J.J. Pavek, J.L. Whitworth, A.R.
> Mosley, S.R. James, D.C. Hane, C.C. Shock, K.A. Rykbost, C.R. Brown,
> R.E. Thornton, N.R. Knowles, M.J. Pavek, N. Olsen, and D.A. Inglis.
> 2006. Defender: A high-yielding, processing potato cultivar with
> foliar and tuber resistance to late blight. Am J Potato Res 83:9-19.
>
> Novy, R.G., S.L. Love, D.L. Corsini, J.J. Pavek, J.L. Whitworth, A.R.
> Mosley, S.R. James, D.C. Hane, C.C. Shock, K.A. Rykbost, C.R. Brown,
> R.E. Thornton, N.R. Knowles, M.J. Pavek, N. Olsen, and D.A. Inglis.
> 2006. Defender: A high-yielding, processing potato cultivar with
> foliar and tuber resistance to late blight. Am J Potato Res 83:126.
> (Abstract)
>
> Novy, Richard G., J.M. Alvarez, S.B. Sterrett, T.P. Kuhar, and D.
> Horton. 2006. Progeny of a tri-species potato somatic hybrid express
> resistance to wireworm in eastern and western potato production
> regions of the U.S. Am J Potato Res 83:126. (Abstract)
>
> Novy, R.G., J.S. Miller, L.D. Porter, S. Yilma, and A.R. Mosley. 2006.
> Identification and use of *Solanum tuberosum* subsp. *andigena* clones
> having both foliar and tuber resistance to late blight. Am J Potato
> Res 83:126-127. (Abstract)
>
> Park, YoungEun, HyunMook Cho, JeomSoon Kim, JungYoon Yi, and JiHong
> Cho. 2005. Evaluation of common scab (*Streptomyces scabies*)
> resistance of potato germplasm. Korean J Breed 37(5):275-281.
>
> Pelletier, Y. 2006. Potato resistance to insects. Northwest
> Agriculture and Forestry University, Yangling, China. (Nov. 04)
> (Invited by Dr. Jinian Feng, Dean of the College of Plant Protection
> to address \~150 graduate students.)
>
> Pelletier, Y. 2006. Wild tuber-bearing *Solanum* species: A source of
> insect resistance. Annual meeting of the Entomological Society of
> Canada, Montreal, Nov. 18-22^nd^.
>
> Pelletier, Y., P. Dexter, R. Coffin, C. Clark, M. Bejan, E. Lucas, C.
> Vincent, V. LeRoux, and P. Giordanengo. 2006. Potato resistance to
> aphids. Northeast Potato Technology Forum. Bangor, Maine, USA, March
> 25-26.
>
> Pelletier, Y., P. Dexter, R. Coffin. 2006. Resistance to aphids in
> some wild potatoes. 17^th^ International Plant Resistance to Insects
> Workshop. Purdue University, West Lafayette, Indiana, USA, April
> 9-12^th^.
>
> Pelletier, Y. and D. de Koeyer. 2006. Progress in the development of a
> potato resistant to the Colorado potato beetle. 17^th^ International
> Plant Resistance to Insects Workshop. Purdue University, West
> Lafayette, Indiana, USA, April 9-12^th^.
>
> Pelletier, Y. and D. de Koeyer. 2006. Potato resistance to insects.
> International Potato Symposium: Bridging Genomics, Varieties and Seed.
> Wuhan, China, Nov. 7-10^th^.
>
> Phumichai, C., M. Mori, A. Kobayashi, O. Kamijima, and K. Hosaka.
> 2005. Toward the development of highly homozygous diploid potato lines
> using the self-compatibility controlling *Sli* gene. Genome
> 48(6):977-984.
>
> Phumichai, C., Y. Ikeguchi-Samitsu, M. Fujimatsu, S. Kitanishi, A.
> Kobayashi, M. Mori, and K. Hosaka. 2006. Expression of *S*-locus
> inhibitor gene (*Sli*) in various diploid potatoes. Euphytica
> 148(3):227-234.
>
> Phumichai, C. and K. Hosaka. 2006. Cryptic improvement for fertility
> by continuous selfing of diploid potatoes using *Sli* gene. Euphytica
> 149(1/2):251-258.
>
> Porter, Gregory and P.C. Ocaya. 2006. Reeves Kingpin compared to
> Shepody for processing: nitrogen, harvest date, and seedpiece spacing
> response. Am J Potato Res 83:129. (Abstract)
>
> Qin Xike, BoLin Liu, J. Soulard, D. Morse, and M. Cappadocia.
> Style-by-style analysis of two sporadic self-compatible *Solanum
> chacoense* lines supports a primary role for S-Rnases in determining
> pollen rejection thresholds. J Exp Botany 57(9):2001-2013.
>
> Quirin, E.A. and J.M. Bradeen. 2006. Efficient recovery of resistance
> gene analogs from *Solanum bulbocastanum*. Plant & Animal Genome XIV,
> San Diego, CA. (Abstract)
>
> Rauscher, G.M., C.D. Smart, I. Simko, M. Bonierbale, H. Mayton, A.
> Greenland, and W.E. Fry. 2006. Characterization and mapping of
> *R~Pi-ber~*, a novel potato late blight resistance gene from *Solanum
> berthaultii*. Theor Appl Genet 112(4):674-687.
>
> Regan, S., V. Gustafson, S. Mallubhotla, B. Chakravarty, M. Bagchi, M.
> Siahbaza, C. Rothwell, R. Sardana, C. Goyer, P. Audy, Li XiuQing, G.
> Wang-Pruski, D. de Koeyer, and B. Flinn. 2006. Finding the perfect
> potato: using functional genomics to improve disease resistance and
> tuber quality traits. In: Selected papers from a special symposium at
> the Annual Meeting of the Canadian Pathological Society commemorating
> the 75^th^ Anniversary, Ottawa, Canada, June 2004. Canadian J Plant
> Path 28(Suppl.):247-255.
>
> Rizza, M. dalla, F.L. Vilaro, D.G. Torres, and D. Maeso. 2006.
> Detection of PVY extreme resistance genes in potato germplasm from the
> Uruguayan breeding program. Am J Potato Res 83:297-304.
>
> Rorat, T., B.M. Szabala, W.J. Grygorowicz, B. Wójtowicz, Z. Yin, and
> P. Rey. 2006. Expression of SK~3~-type dehydrin in transporting organs
> is associated with cold acclimation in *Solanum* species. Planta
> 224:205-221.
>
> Rubio-Covarrubias, O.A., D.S. Douches, R. Hammerschmidt, A. daRocha,
> and W.W. Kirk. 2006. Effect of photoperiod and temperature on
> resistance against *Phytophthora infestans* in susceptible and
> resistance potato cultivars: Effect on deposition of structural
> phenolics on the cell wall and resistance to penetration. Am J Potato
> Res 83:325-334.
>
> Ruiz, R.A.C., C. Herrera, M. Ghislain, and C. Gebhardt. 2005.
> Organization of phenylalanine ammonia lyase (*PAL*), acidic *PR-5* and
> Osmotin-like (*OSM*) defence-response gene families in the potato
> genome. Mol Genet Genom 274(2):168-179.
>
> Sanchez, J.D., A. Lopez and L.E. Rodriguez. 2005. Determining critical
> stages in the *Solanum phureja* potato crop's phonological development
> regarding Guatemalan potato moth *Tecia solanivora* (Lepidoptera:
> Gelechiidae) attack. Agronomia Colombiana 23(2):230-238.
>
> Sanchez, M.J. and J.B. Bradeen. 2006. Towards efficient isolation of R
> gene orthologs from multiple genotypes: optimization of Long
> Range-PCR. Mol Breed 17:137-148.
>
> Shaterian, J., D. Waterer, H. de Jong, and K.K. Tanino. 2005.
> Differential stress responses to NaCl salt application in early- and
> late-maturing diploid potato (*Solanum* sp.) clones. Environ Exp Bot
> 54(3):202-212.
>
> Simko, I., S. Costanzo, V. Ramanjulu, B.J. Christ, and K.G. Haynes.
> 2006. Mapping polygenes for tuber resistance to late blight in a
> diploid *Solanum phureja -- S. stenotomum* hybrid population. Am J
> Potato Res 83:133. (Abstract)
>
> Simko, I., S. Costanzo, V. Ramanjulu, B.J. Christ, and K.G. Haynes.
> 2006. Mapping polygenes for tuber resistance to late blight in a
> diploid *Solanum phureja -- S. stenotomum* hybrid population. Plant
> Breeding 125(4):385-389.
>
> Sliwka, J., H. Jakuczun, R. Lebecka, W. Marczewski, C. Gebhardt, and
> E. Zimnoch-Guzowska. 2006. The novel, major locus *Rpi-phu1* for late
> blight resistance maps to potato chromosome IX and is not correlated
> with long vegetation period. Theor Appl Genet 113(4):685-695.
>
> Song YeSu, L. Hepting, G. Schweizer, L. Hartl, G. Wenzel, and A.
> Schwarzfischer. 2005. Mapping of extreme resistance to PVY (*Ry*~sto~)
> on chromosome XII using anther-culture-derived primary dihaploid
> potato lines. Theor Appl Genet 111(5):879-887.
>
> Sorensen, K.K., M.H. Madsen, H.G. Kirk, D.K. Madsen, and A.M. Torp.
> 2006. Linkage and quantitative trait locus mapping of foliage late
> blight resistance in the wild species *Solanum vernei*. Plant Breeding
> 125(3):268-276.
>
> Sowokinos, J.R. and S.K. Gupta. 2006. Increasing the long-term storage
> quality of potatoes through the introduction of an anti- sweetening
> gene UgpA. Area II (MN) Potato Research Reporting and Planning
> Session, pp. 1-3.
>
> Sterrett, S.B., K.G. Haynes and Dennis J. Timlin. 2006. Temperature
> regime in growth chamber identified for expression of internal heat
> necrosis. Am J Potato Res 83:134. (Abstract)
>
> Sterrett, S.B., K.G. Haynes, G.C. Yencho, M.R. Henninger, and B.T.
> Vinyard. 2006. 4 x -2 x Potato clones with resistance or
> susceptibility to internal heat necrosis differ in tuber mineral
> status. Crop Sci 46(4):1471-1478.
>
> Sukhotu, T. and K. Hosaka. 2006. Origin and evolution of Andean
> potatoes revealed by chloroplast and nuclear DNA markers. Genome
> 49:636-647.
>
> Sukhotu, T., O. Kamijima and K. Hosaka. 2006. Chloroplast DNA
> variation in the most primitive cultivated diploid potato species
> *Solanum stenotomum* Juz. et Buk. And its putative wild ancestral
> species using high-resolution markers. Genet Resour Crop Evol
> 53:53-63.
>
> Syverson, R., B.P. Millett and J.M. Bradeen. 2006. Fine mapping of
> resistance gene regions in *Solanum bulbocastanum* using a novel MAMA
> PCR-based mapping approach. Solanaceae Genome Workshop, Madison, WI.
> (Abstract)
>
> Thompson, A.L., B.L. Farnsworth, G.A. Secor, N.C. Gudmestad, D.A.
> Preston, and H. Hatterman-Valenti. 2006. Dakota Jewel: An attractive,
> new, bright red-skinned, fresh market potato cultivar with improved
> storage characteristics. Am J Potato Res 83:373-379.
>
> Thompson, A.L., G.A. Secor, J.H. Lorenzen, B.L. Farnsworth, R.G. Novy,
> N.C. Gudmestad, E.T. Holm, and D.A. Preston. 2006. Dakota Rose: A
> bright red tablestock potato cultivar that retains its skin color in
> storage. Am J Potato Res 83:317-323.
>
> Vossen, E.A.G. van der, J. Gros, A. Sikkema, M. Muskens, D. Wouters,
> P. Wolters, A. Pereira, and S. Allefs. 2005. The *Rpi-blb2* gene from
> *Solanum bulbocastanum* is an *Mi-1* gene homolog conferring
> broad-spectrum late blight resistance in potato. Plant J
> 44(2):208-222.
>
> Vyšniauskienė, R. and A. Radžiūnaitė-Paukštienė. 2004. The soluble
> proteins of the chloroplast in frost resistant hybrids of potato
> *Solanum tuberosum* L. and *S. commersonii* Dun. Sodininkystė ir
> Daržininkystė 23(2):284-290.
>
> Winfield, M., D. Lloyd, W. Griffiths, J. Bradshaw, D. Muir, I.
> Nevison, and G. Bryan. 2005. Assessing organoleptic attributes of
> *Solanum tuberosum* and *S. phureja* potatoes. In: Production and
> protection of sugar beet and potatoes, Homerton College, Cambridge,
> UK, Dec. 15-16, 2005. G. Champion, M.F.B. Dale, K. Jaggard, W.E.
> Parker, J. Pickup, and M. Stevens (eds.). Aspects of Appl Bio
> 76:127-135.
>
> Yin, Z., T. Rorat, B.M. Szabala, A. Ziólkowska, and S. Malepszy. 2006.
> Expression of a Solanum sogarandium SK3-type dehydrin enhances cold
> tolerance in transgenic cucumber seedlings. Plant Sci 170:1164-1172.
>
> Zhao, Yan, Qian Zhao, GuangMing Ao, and JingJuan Yu. 2006.
> Characterization and functional analysis of a pollen-specific gene
> *st901* in *Solanum tuberosum*. Planta 224(2):405-412.

B.  **[Theses Reporting Research with NRSP-6 Stocks]{.underline}**

> Davis, J.A. 2006. Identifying and mapping novel mechanisms of host
> plant resistance to aphids and viruses in diverse potato populations.
> Ph.D. Dissertation, University of Minnesota.
>
> Draaistra, J. 2006. Genetic analyses of root-knot nematode resistance
> in potato. Ph.D. Thesis, 96 pp., Wageningen University, Wageningen,
> Netherlands.
>
> Ortiz-Medina, E. 2006. Potato tuber protein and its manipulation by
> chimeral disassembly using specific tissue explantation for somatic
> embryogenesis. McGill University Doctoral Thesis, pp. 152.
>
> Quirin, E.A. 2006. Resistance Gene Analog (RGA) Library Development
> for the Wild Potato Species, *Solanum bulbocastanum* and the Analysis
> of Non-RGA Sequences Obtained via the Polymerace Chain Reaction (PCR)
> Using Degenerate Primers. M.S., University of Minnesota.
>
> **7. [APPROVED]{.underline}**

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
\_\_\_\_\_\_\_\_\_\_

J. C. Miller, Jr., Chairman, Technical Committee Date

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
\_\_\_\_\_\_\_\_\_\_

S.A. Slack, Lead Administrative Advisor Date