文献类型: 外文期刊
作者: Xia, X. C.;Zhou, X. C.;Niu, Y. C.;He, Z. H.;Zhang, Y.;Li, G. Q.;Wan, A. M.;Wang, D. S.;Chen, X. M.;Lu, Q. L.;Singh, R. P.
作者机构:
关键词: bread wheat;gene-for-gene specificity;yellow rust
期刊名称: PLANT DISEASE
ISSN: 0191-2917
年卷期: 2006 年 90 卷 10 期
页码:
收录情况: SCI
摘要: 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.
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