山西省小麦叶锈菌致病类型及毒性监测  

Pathogenic Types and Virulence of Wheat Leaf Rust(Puccinia triticina)in Shanxi Province

作　　者：原宗英[1] 武英鹏[1] 刘敏捷[1] 

机构地区：[1]山西省农业科学院植物保护研究所,农业有害生物综合治理山西省重点实验室,山西太原030031

出　　处：《山西农业科学》2017年第3期448-450,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西省自然科学基金项目(201601D102048);山西省农业科学院育种工程项目(16yzgc119)

摘　　要：对采自山西省的110株小麦叶锈菌菌株进行了致病类型鉴定及毒性基因分析。结果表明,110株小麦叶锈菌被划分为43个致病类型,其中,优势类型为THT,TRT,PHT,PHR,出现频率分别为23.08%,9.62%,7.69%,6.73%。毒性基因V9,V19,V24,V25,V28,V29,V38,V39的毒性频率<30%,其对应的抗性基因为有效抗病基因;V2a,V3Bg,V18,V21,V23,V27+31,V33的毒性频率在30%~70%,表明其对应的抗叶锈基因在山西省不同区域有一定的利用价值,可以考虑多个抗性基因同时利用;V1,V2b,V2c,V3,V3ka,V10,V11,V12,V13,14a,V14b,V15,V16,V17,V20,V22a,V26,V30,V31,V32,V35,V36,V37,V22b的毒性频率大于70%,它们对应的抗性基因在山西省小麦抗叶锈病品种选育中为无效基因,如果单独利用则没有价值。One hundred and ten isolates of Puccinia triticina were obtained from Shanxi province and tested for virulence. They were divided into 43 pathogenic types. Of these, the advantage types were THT, TRT, PHT, PHR, and the frequency were 23.08%,9.62%, 7.69% and 6.73%, respectively. The virulence frequency of V9, V19, V24, V25, V28, V29, V38 and V39 were lower than 30%,implying that the corresponding resistance genes could be well used recent years. The virulence frequency of V2 a, V3 bg, V18, V21, V23,V27＋31 and V33 were between 30% and 70%, indicating that the corresponding resistance genes could be restrictly used recent years.However, the virulence frequency of V1, V2 b, V2 c, V3, V3 ka, V10, V11, V12, V13, V14 a, V14 b, V15, V16, V17, V20, V22 a, V26,V30, V31, V32, V35, V36, V37 and V22 b were higher than 70%, indicating that the corresponding resistance genes were almost of no use when used alone in the wheat production.

关 键 词：小麦叶锈菌 致病类型 毒性基因 

分 类 号：S435.121.43[农业科学—农业昆虫与害虫防治]