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Seedling and slow rusting resistance to stripe rust in Chinese common wheats

Author: Li, Z.F.
Author: Xia, X.C.
Author: Zhou, X.C.
Author: Niu, Y.C.
Author: He, Zhonghu
Author: Zhang, Y.
Author: Li, G.Q.
Author: Wan, A.M.
Author: Wang, D.S.
Author: Chen, X.M.
Author: Lu, Q.L.
Author: Singh, R.P.
Year: 2006
ISSN: 0191-2917
ISSN: 1943-7692
Abstract: Identification of seedling and slow stripe rust resistance genes is important for gene pyramiding, gene deployment, and developing slow-rusting wheat cultivars to control the disease. A total of 98 Chinese lines were inoculated with 26 pathotypes of Puccinia striiformis f. sp. tritici for postulation of stripe rust resistance genes effective at the seedling stage. A total of 135 wheat lines were planted at two locations to characterize their slow rusting responses to stripe rust in the 2003-2004 and 2004-2005 cropping seasons. Genes Yr2, Yr3a, Yr4a, Yr6, Yr7, Yr9, Yr26, Yr27, and YrSD, either singly or in combinations, were postulated in 72 lines, whereas known resistance genes were not identified in the other 26 accessions. The resistance genes Yr9 and Yr26 were found in 42 and 19 accessions, respectively. Yr3a and Yr4a were detected in two lines, and four lines may contain Yr6. Three lines were postulated to possess YrSD, one carried Yr27, and one may possess Yr7. Thirty-three lines showed slow stripe rusting resistance at two locations in both seasons.
Format: PDF
Language: English
Publisher: American Phytopathological Society (APS)
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Country focus: China
Region: East Asia
Pages: 1302-1312
Issue: 10
Volume: 90
DOI: 10.1094/PD-90-1302
Agrovoc: WHEAT
Agrovoc: RUSTS
Journal: Plant Disease

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  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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