Characterization and validation of QTLs for adult plant stripe rust resistance in Chinese wheat landrace Dabaimai
文献类型： 外文期刊
作者： Wang, M. Y.;Xu, M. R.;Wang, F. T.;Feng, J.;Lin, R. M.;Xu, S. C.;Shah, S. J. A.
作者机构：
关键词： Wheat stripe; yellow rust; Puccinia striiformisf; sp; tritici; Resistance; SSR; Gene mapping
期刊名称： CEREAL RESEARCH COMMUNICATIONS
ISSN： 0133-3720
年卷期：
页码：
收录情况： SCI
摘要： Wheat stripe/yellow rust, caused byPuccinia striiformisf. sp.tritici(Pst), is one of the serious diseases of wheat. The application of resistance cultivars underpins control of wheat stripe rust. The Chinese wheat landrace Dabaimai displayed resistance to most of the Chinese yellow rust races. To decipher the genetic bases of resistance in Dabaimai, a total of 202 recombinant inbred lines F(6)of Taichung 29/Dabaimai were tested under field conditions with a predominantPstrace CYR32. Based on SSR markers and field resistance data, two resistance QTLs were detected and namedQYr.caas-1ASandQYr.caas-4BS, respectively.QYr.caas-1AS, located on chromosome 1AS between markersXgwm136andXcfd15, can explain 45.97% and 26.83% of the phenotypic variance for infection type (IT) and disease severity (DS), respectively.QYr.caas-4BS, located on chromosome 4BS between markersXwmc652andXgpw4388, can explain 43.38% and 21.30% of the phenotypic variance for IT and DS, respectively. The adult plant stripe rust resistance loci and linked SSR markers will be valuable in combining with other effective genes for combating wheat stripe rust.
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