中国小麦主要抗叶锈病基因的有效性评价  

Estimate on the Effectiveness of Main Resistant Genes for Leaf Rust in Chinese Wheat

作　　者：袁军海[1,2] 陈万权[2] 

机构地区：[1]河北北方学院农学系,河北宣化075131 [2]中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室,北京100094

出　　处：《麦类作物学报》2011年第5期994-999,共6页Journal of Triticeae Crops

基　　金：国家重点基础研究发展计划(973)项目(2011CB100403);农业部公益性行业(农业)科研专项(200903035);国家小麦产业技术体系岗位专家专项;河北北方学院博士启动资金项目

摘　　要：为了给小麦抗叶锈基因的发掘和利用提供理论指导,对目前我国小麦主要抗叶锈病基因的有效性进行了评价。认为Lr1、Lr3、Lr3bg、Lr10、Lr11、Lr14a、Lr16和Lr26等基因单独应用已基本失效,但与Lr13和Lr34等合适的基因组合起来能够表现出残余的抗病作用;Lr9、Lr19、Lr24和Lr38等是典型的垂直抗病性基因,应慎重应用;虽然Lr13具有慢锈性、Lr23表现免疫,但这两个基因均对致病类型有专化性,遇到毒性致病类型时慢锈性或免疫特性均会失效。认为目前我国小麦中对叶锈病起抵抗作用的主要是Lr12、Lr13、Lr23、Lr34和Lr35等成株抗病基因、某些未知基因和水平抗病性基因。The effectiveness of main resistance genes for leaf rust in Chinese wheat under current circumstances was evaluated in this paper.Combining with proper resistance gene（s）,such as Lr13 or Lr34,the residual resistance of Lr1,Lr3,Lr3bg,Lr10,Lr11,Lr14a,Lr16 and Lr26 could be expressed,although these genes hardly had any utilizable value while they were employed alone.As typical vertical resistance genes,Lr9,Lr19,Lr24 and Lr38 should be cautiously applied.Interacting with specific virulence pathotype,Lr13,a slow rust gene,and Lr23,an immune gene,would all lose theirs resistance.It suggests that Lr12,Lr13,Lr23,Lr34,Lr35 and other adult plant resistance genes,some unknown genes,and horizontal resistance genes probably play the leading role on the counteraction of wheat leaf rust.

关 键 词：小麦 抗叶锈病基因 有效性 

分 类 号：S512.1[农业科学—作物学] S435.121.43