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                    U.S. DEPARTMENT OF AGRICULTURE
 Peanut and Small Grains Research Unit: El Reno, OK
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ARS Home Plains Area El Reno, Oklahoma Oklahoma and Central Plains Agricultural Research Center Peanut and Small Grains Research Unit People & Locations







Xiangyang  Xu

                                                                (PhD)
                        Peanut and Small Grains Research Unit

                        




                        
                        Research Geneticist (Plants)
                        Phone: (405) 385-5430
                        
                        
                        Fax: (Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsManagement Strategies for Invasive Aphid Pests of Cereals
                                                    In-House Appropriated
                                                                    (D)Accession Number: 439170Genetic Improvement for Resistance to Aphids and Major Diseases in Wheat, Barley, and Sorghum in the Great Plains
                                                    In-House Appropriated
                                                                    (D)Accession Number: 445186Collaborative Institutional Biosafety Committee (IBC) Oversight between Oklahoma State University and ARS-Stillwater
                                                    Non-Funded Cooperative Agreement
                                                                    (N)Accession Number: 436435Wheat Breeding and Variety Development (Wheat Improvement Team)
                                                    Reimbursable Cooperative Agreement
                                                                    (R)Accession Number: 441428Introgression of Aphid Resistance Genes from Ae. Tauschii into Bread Wheat
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 442562Phenotyping for Pythium Pod Rot Resistance
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 442998**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Identification of a new Rsg1 allele conferring resistance to multiple greenbug biotypes from barley accessions PI 499276 and PI 566459
                                                        

- (Peer Reviewed Journal)Xu, X., Mornhinweg, D.W., Bai, G., Li, G., Bian, R., Bernardo, A.E., Armstrong, J.S. 2023. Identification of a new Rsg1 allele conferring resistance to multiple greenbug biotypes from barley accessions PI 499276 and PI 566459. The Plant Genome. https://doi.org/10.1002/tpg2.20418.Identification of bird-cherry oat aphid and greenbug resistance sources from Ae. tauschii for wheat improvement
                                                        

- (Peer Reviewed Journal)Xu, X., Li, G., Lhamo, D., Carver, B.F., Wulff, B., Gu, Y.Q., Xu, S.S., Armstrong, J.S. 2023. Identification of bird-cherry oat aphid and greenbug resistance sources from Ae. tauschii for wheat improvement. Crop Science. https://doi.org/10.1002/csc2.21042.Identification of a novel Pm65 allele conferring a wide spectrum of resistance to powdery mildew in wheat accession PI 351817
                                                        

- (Peer Reviewed Journal)Xu, X., Li, G., Cower, C., Bai, G., Carver, B.F., Bian, R., Bernardo, A. 2023. Identification of a novel Pm65 allele conferring a wide spectrum of resistance to powdery mildew in wheat accession PI 351817. Phytopathology. https://doi.org/10.1094/PHYTO-01-23-0032-R.Genomic location of Gb1, a unique gene conferring wheat resistance to greenbug biotype F
                                                        

- (Peer Reviewed Journal)Xu, X., Li, G., Bai, G., Carver, B.F., Bian, R., Bernardo, A.E., Armstrong, J.S. 2023. Genomic location of Gb1, a unique gene conferring wheat resistance to greenbug biotype F. The Crop Journal. https://doi.org/10.1016/j.cj.2023.02.002.Characterization of Rsg3, a novel greenbug resistance gene from the Chinese barley landrace PI 565657
                                                        

- (Peer Reviewed Journal)Xu, X., Mornhinweg, D.W., Bai, G., Li, G., Bian, R., Bernardo, A.E., Armstrong, J.S. 2022. Characterization of Rsg3, a novel greenbug resistance gene from the Chinese barley landrace PI 565657. The Plant Genome. 16(1). Article e20287. https://doi.org/10.1002/tpg2.20287.Identification and characterization of the novel leaf rust resistance gene Lr81 in wheat
                                                        

- (Peer Reviewed Journal)Xu, X., Kolmer, J., Li, G., Tan, C., Carver, B.F., Bian, R., Bernardo, A., Bai, G. 2022. Identification and characterization of the novel leaf rust resistance gene Lr81 in wheat. Journal of Theoretical and Applied Genetics. Article 04145-5. https://doi.org/10.1007/s00122-022-04145-5.Characterization of Rsg2.a3: A new greenbug resistance allele at the Rsg2 locus from wild barley (Hordeum vulgare ssp. spontaneum)
                                                        

- (Peer Reviewed Journal)Xu, X., Mornhinweg, D., Bernardo, A., Li, G., Bian, R., Steffensen, B.J., Bai, G. 2022. Characterization of Rsg2.a3: A new greenbug resistance allele at the Rsg2 locus from wild barley (Hordeum vulgare ssp. spontaneum). The Crop Journal. https://doi.org/10.1016/j.cj.2022.01.010.Characterization of PmBN418, a wheat powdery mildew resistance gene on the rye 1RS chromosome arm
                                                        

- (Peer Reviewed Journal)Xu, X., Bai, G., Li, G., Cowger, C., Bernardo, A.E., Carver, B., St Amand, P.C., Bian, R. 2021. Characterization of PmBN418, a wheat powdery mildew resistance gene on the rye 1RS chromosome arm. Crop Science. 61(6):4194-4201. https://doi.org/10.1002/csc2.20637.Rsg1.a3: A new allele conferring unique resistance to greenbug biotype H at the Rsg1 locus in Hordeum vulgar ssp spontaneum
                                                        

- (Peer Reviewed Journal)Xu, X., Mornhinweg, D.W., Bai, G., Steffenson, B., Bian, R., Li, G., Bernardo, A. 2021. Rsg1.a3: A new allele conferring unique resistance to greenbug biotype H at the Rsg1 locus in Hordeum vulgar ssp spontaneum. Crop Science. 61:3578-3585. https://doi.org/10.1002/csc2.20581.Characterization of an incomplete leaf rust resistance gene and development of KASP markers for the leaf rust resistance gene Lr47 in wheat
                                                        

- (Peer Reviewed Journal)Xu, X., Li, G., Bai, G., Bernardo, A.E., Carver, B.F., St Amand, P.C., Bian, R. 2021. Characterization of an incomplete leaf rust resistance gene and development of KASP markers for the leaf rust resistance gene Lr47 in wheat. Phytopathology. https://doi.org/10.1094/PHYTO-07-20-0308-R.Development of KASP markers for wheat greenbug resistance gene Gb5
                                                        

- (Peer Reviewed Journal)Xu, X., Li, G., Bai, G., Bernardo, A., Carver, B.F., St Amand, P., Armstrong, S. 2020. Development of KASP markers for wheat greenbug resistance gene Gb5. Crop Science. 61(1):490–499. https://doi.org/10.1002/csc2.20339.The Hessian fly recessive resistance gene H4 mapped to chromosome 1A of the wheat cultivar ‘Java’ using genotyping-by-sequencing
                                                        

- (Peer Reviewed Journal)Niu, F., Xu, Y., Liu, X., Zhao, L., Bernardo, A.E., Yaoguang, L., Guixia, L., Chen, M., Cao, L., Hu, Z., Xu, X., Bai, G. 2020. The Hessian fly recessive resistance gene H4 mapped to chromosome 1A of the wheat cultivar ‘Java’ using genotyping-by-sequencing. Journal of Theoretical and Applied Genetics. https://doi.org/10.1007/s00122-020-03642-9.Identification of wheat germplasm resistant to major Russian wheat aphid biotypes in the United States
                                                        

- (Peer Reviewed Journal)Xu, X., Li, G., Carver, B.F., Puterka, G.J. 2020. Identification of wheat germplasm resistant to major Russian wheat aphid biotypes in the United States. Crop Science. 60(3):1428-1435. https://doi.org/10.1002/csc2.20041.Pest resistance discovery and introgression

- (Experiment Station)Xu, X. 2020. Pest resistance discovery and introgression. Agricultural Experiment Station Publication. 1058:12-18.Gb8, a new gene conferring resistance to economically important greenbug biotypes in wheat
                                                        

- (Peer Reviewed Journal)Xu, X., Li, G., Carver, B.F., Armstrong, J.S. 2020. Gb8, a new gene conferring resistance to economically important greenbug biotypes in wheat. Theoretical and Applied Genetics. 133:615-622. https://doi.org/10.1007/s00122-019-03491-1.Rapid identification of a novel wheat leaf rust resistance gene by selective genotyping of F2 plants using next-generation-sequencing

- (Abstract Only)Natural variation in lignin and pectin biosynthesis-related genes associated with switchgrass (Panicum virgatum L.) ecotype differentiation
                                                        

- (Peer Reviewed Journal)Bahri, B.A., Daverdin, G., Xu, X., Cheng, J., Barry, K.W., Brummer, E., Devos, K., Missaoui, A. 2020. Natural variation in lignin and pectin biosynthesis-related genes associated with switchgrass (Panicum virgatum L.) ecotype differentiation. BioEnergy Research. 13:79-99. https://doi.org/10.1007/s12155-020-10090-2.Mechanisms of resistance of new wheat gene Dn10 in comparison with other Dn genes resistant to Russian wheat aphid
                                                        

- (Peer Reviewed Journal)Puterka, G.J., Xu, X., Li, G., Carver, B.F., Guo, P. 2020. Mechanisms of resistance of new wheat gene Dn10 in comparison with other Dn genes resistant to Russian wheat aphid. Crop Science. 60:1782-1788. https://doi.org/10.1002/csc2.20051.Characterization of Pm65, a new powdery mildew resistance gene on chromosome 2AL of a facultative wheat cultivar
                                                        

- (Peer Reviewed Journal)Li, G., Cowger, C., Wang, X., Carver, B.F., Xu, X. 2019. Characterization of Pm65, a new powdery mildew resistance gene on chromosome 2AL of a facultative wheat cultivar. Theoretical and Applied Genetics. 132(9):2625-2632. https://doi.org/10.1007/s00122-019-03377-2.Identification of powdery mildew resistance loci in wheat by integrating genome-wide association study (GWAS) and linkage mapping
                                                        

- (Peer Reviewed Journal)Li, G., Xu, X., Tan, C., Carver, B.F., Bai, G., Wang, X., Bonman, J.M., Wu, Y., Hunger, R., Cowger, C. 2019. Identification of powdery mildew resistance loci in wheat by integrating genome-wide association study (GWAS) and linkage mapping. The Crop Journal. 7(3):294-306. https://doi.org/10.1016/j.cj.2019.01.005.Characterization of Pm63, a new powdery mildew resistance gene identified in Iranian landrace PI 628024
                                                        

- (Peer Reviewed Journal)Tan, C., Li, G., Cowger, C., Carver, B.F, Xu, X. 2019. Characterization of Pm63, a new powdery mildew resistance gene identified in Iranian landrace PI 628024. Journal of Theoretical and Applied Genetics. 132(4):1137-1144. https://doi.org/10.1007/s00122-018-3265-5.Pest resistance - discovery and introgression

- (Experiment Station)Xu, X. 2019. Pest resistance - discovery and introgression. In: Partners and Progress - Wheat Research at OSU, 2018. Oklahoma Agric. Exp. Station. P-1053, p. 13-15.Pm223899, a new recessive powdery mildew resistance gene identified in Afghanistan landrace PI 223899
                                                        

- (Peer Reviewed Journal)Li, G., Carver, B., Cowger, C., Bai, G., Xu, X. 2018. Pm223899, a new recessive powdery mildew resistance gene identified in Afghanistan landrace PI 223899. Theoretical and Applied Genetics. 131(12):2775-2783. https://doi.org/10.1007/s00122-018-3199-y.Characterization of Pm59, a novel powdery mildew resistance gene in Afghanistan wheat landrace PI 181356
                                                        

- (Peer Reviewed Journal)Tan, C., Li, G., Cowger, C., Carver, B.F., Xu, X. 2018. Characterization of Pm59, a novel powdery mildew resistance gene in Afghanistan wheat landrace PI 181356. Theoretical and Applied Genetics. 131(5):1145-1152. https://doi.org/10.1007/s00122-018-3067-9.Dn10, a new gene conferring resistance to Russian wheat aphid biotype 2 in Iranian wheat landrace PI 682675
                                                        

- (Peer Reviewed Journal)Li, G., Xu, X., Carver, B.F., Guo, P., Puterka, G.J. 2018. Dn10, a new gene conferring resistance to Russian wheat aphid biotype 2 in Iranian wheat landrace PI 682675. Crop Science. 58(3):1219-1225. https://doi.org/10.2135/cropsci2017.10.0649.Pest resistance discovery and introgression

- (Experiment Station)Xu, X. 2018. Pest resistance discovery and introgression. In: Partners and Progress - Wheat Research at OSU, 2017. Oklahoma Agricultural Experiment Station. P-1050, p. 13-15.Genome-wide association analysis of powdery mildew resistance in U.S. winter wheat
                                                        

- (Peer Reviewed Journal)Liu, N., Lin, M., Xu, X., Bai, G. 2017. Genome-wide association analysis of powdery mildew resistance in U.S. winter wheat. Scientific Reports. 7:11743. https://doi.org/10.1038/s41598-017-11230-z.Natural variation in genes potentially involved in plant architecture and adaptation in switchgrass (Panicum virgatum L.)
                                                        

- (Peer Reviewed Journal)Bahri, B.A., Daverdin, G., Xu, X., Cheng, J., Barry, K.W., Brummer, C.E., Devos, K.M. 2018. Natural variation in genes potentially involved in plant architecture and adaptation in switchgrass (Panicum virgatum L.). BMC Evolutionary Biology. 18:91 20 p. https://doi.org/10.1186/s12862-018-1193-2.Quantitative trait loci for slow-rusting resistance to leaf rust in doubled-haploid wheat population CI13227 × Lakin
                                                        

- (Peer Reviewed Journal)Lu, Y., Bowden, R.L., Zhang, G., Xu, X., Fritz, A., Bai, G. 2017. Quantitative trait loci for slow-rusting resistance to leaf rust in doubled-haploid wheat population CI13227 × Lakin. Journal of Phytopathology. https://doi.org/10.1094/PHYTO-09-16-0347-R.Development and validation of KASP markers for the greenbug resistance gene Gb7 and the Hessian fly resistance gene H32 in wheat

- (Peer Reviewed Journal)Tan, C., Yu, H., Yang, Y., Xu, X., Chen, M., Rudd, J.C., Xue, Q., Ibrahim, A., Garza, L., Wang, S., Sorrells, M.E., Liu, S. 2017. Development and validation of KASP markers for the greenbug resistance gene Gb7 and the Hessian fly resistance gene H32 in wheat. Theoretical and Applied Genetics. 130(9):1867-1884.Novel sources of leaf rust resistance in winter wheat

- (Peer Reviewed Journal)Li, G., Xu, X., Bai, G., Carver, B.F., Hunger, R.M., Bonman, J.M. 2017. Novel sources of leaf rust resistance in winter wheat. Crop Science. 57(2):865-876.Genome-wide association study reveals genetic architecture of coleoptile length in wheat

- (Peer Reviewed Journal)Li, G., Bai, G., Carver, B.F., Elliott, N.C., Bennett, R.S., Wu, Y., Hunger, R., Bonman, J.M., Xu, X. 2017. Genome-wide association study reveals genetic architecture of coleoptile length in wheat. Theoretical and Applied Genetics. 130(2):391-401.Genome-wide association mapping reveals novel QTL for seedling leaf rust resistance in a worldwide collection of winter wheat

- (Peer Reviewed Journal)Li, G., Xu, X., Bai, G., Carver, B.F., Hunger, R., Bonman, J.M., Kolmer, J.A., Dong, H. 2016. Genome-wide association mapping reveals novel QTL for seedling leaf rust resistance in a worldwide collection of winter wheat. The Plant Genome. 9(3):1-12. doi:10.3835/plantgenome2016.06.0051.Identification of novel powdery mildew resistance sources in wheat

- (Peer Reviewed Journal)Li, G., Xu, X., Bai, G., Carver, B.F., Hunger, R.M., Bonman, J.M. 2016. Identification of novel powdery mildew resistance sources in wheat. Crop Science. 56(4):1817-1830.Whole-genome resequencing: changing the paradigms of SNP detection, molecular mapping and gene discovery

- (Review Article)Xu, X., Bai, G. 2015. Whole-genome resequencing: changing the paradigms of SNP detection, molecular mapping and gene discovery. Molecular Breeding. 35(1):33.Evaluation and reselection of wheat resistance to Russian wheat aphid biotype 2

- (Peer Reviewed Journal)Xu, X., Bai, G., Carver, B.F., Zhan, K., Huang, Y., Mornhinweg, D.W. 2015. Evaluation and reselection of wheat resistance to Russian wheat aphid biotype 2. Crop Science. 55(2):695-701.Pinpointing genes underlying the quantitative trait loci for root-knot nematode resistance in palaeopolyploid soybean by whole genome resequencing

- (Peer Reviewed Journal)Xu, X., Zeng, L., Tao, Y., Vuong, T., Wan, J., Boerma, R., Noe, J., Li, Z., Finnerty, S., Pathan, S.M., Shannon, G., Nguyen, H.T. 2013. Pinpointing genes underlying the quantitative trait loci for root-knot nematode resistance in palaeopolyploid soybean by whole genome resequencing. Proceedings of the National Academy of Sciences. 110(33):13469-13474.


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