Stripe Rust Resistance in Roegneria kamoji (Poaceae: Triticeae) and its Genetic Analysis
文献类型: 外文期刊
第一作者: Chen, Guo-Yue
作者: Chen, Guo-Yue;Kang, Hou-Yang;Wang, Yi;Fan, Xing;Sha, Li-Na;Zhou, Yong-Hong;Zhang, Hai-Qin;Li, Qi;Chen, Guo-Yue;Kang, Hou-Yang;Wang, Yi;Fan, Xing;Sha, Li-Na;Zhou, Yong-Hong;Zhang, Hai-Qin;Li, Jun
作者机构:
关键词: genetic resources;Puccinia striiformis f;sp;tritici;resistance gene;Roegneria kamoji;yellow rust
期刊名称:JOURNAL OF PHYTOPATHOLOGY ( 影响因子:1.789; 五年影响因子:1.574 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The Roegneria kamoji accession ZY 1007 was resistant to the mixed predominant races of Puccinia striiformis f.sp. tritici (Pst) in China based on field tests at adult-plant stage. The seedling resistance evaluation of ZY 1007 showed that it was resistant to stripe rust physiological strains CYR29, CYR33 and PST-V26, which were the predominant races of Pst in China. The female parent R.kamoji cv. Gansi No.1 (susceptible to Pst) was crossed with ZY 1007 (resistant to Pst). Parents, F-1 and F-2 populations were tested in a field inoculated with the mixed urediniospores. ZY 1007 and all the observed 11 F-1 hybrid plants were resistant, while plants of Gansi No.1 were susceptible. Among the 221 F-2 plants, 168 plants were resistant and 53 were susceptible, and the segregation of resistant and susceptible plants fits 3R:1S ratio ((2)=0.074, P>0.75). It confirmed that the resistance of stripe rust in ZY 1007 was controlled by a single dominant gene and temporarily designated as YrK1007.
分类号: Q945
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