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小麦品种绵麦37成株期抗条锈性的遗传分析
引用本文:周强,李生荣,杜小英,任勇,陶军,欧俊梅,庞启华.小麦品种绵麦37成株期抗条锈性的遗传分析[J].植物保护,2009,35(6):123-126.
作者姓名:周强  李生荣  杜小英  任勇  陶军  欧俊梅  庞启华
作者单位:绵阳市农业科学研究所/国家小麦改良中心绵阳分中心,绵阳,621023
基金项目:"十一五"国家科技支撑计划,四川省"十一五"育种攻关项目,四川省农业厅重点资助项目 
摘    要:绵麦37是绵阳市农业科学研究所育成,含有CIMMYT材料血缘的小麦品种,2004年通过四川省品种审定后在生产上大面积推广应用,表现高抗条锈病且抗性稳定。为明确绵麦37抗条锈性遗传基础,本试验选用5个抗病品种(系)和3个感病品种(系),分别与绵麦37组配成抗×抗、抗×感组合进行遗传分析。结果表明,绵麦37成株期对条中32号小种的抗性主要受1对显性基因的控制,同时受另2对隐性基因的影响。其抗源来自于CIMMYT材料96EW37(SW2148),并且与川麦42、5563及MR168的抗源相似,其抗性基因不同于贵农系统。绵麦37作为综合性状优良的新品种,既可在生产上推广应用,也可作为抗源材料在育种上加以利用。

关 键 词:小麦  条锈病  绵麦37  遗传分析

Genetic analysis of stripe rust resistance in wheat variety Mianmai 37 at adult stage
Zhou Qiang,Li Shengrong,Du Xiaoying,Ren Yong,Tao Jun,Ou Junmei,Pang Qihua.Genetic analysis of stripe rust resistance in wheat variety Mianmai 37 at adult stage[J].Plant Protection,2009,35(6):123-126.
Authors:Zhou Qiang  Li Shengrong  Du Xiaoying  Ren Yong  Tao Jun  Ou Junmei  Pang Qihua
Institution:Mianyang Research Institute of Agricultural Sciences/Mianyang Branch of National Wheat Improvement Center,Mianyang 621023,China
Abstract:Wheat stripe rust is one of the most devastating diseases of common wheat in Southwest.Mianmai 37,a new wheat variety with parental resource from CIMMYT,was highly resistant to Chinese newly predominant races of Chinese Yellow Raca(CYR32)at adult stage.In order to determine the inheritance of resistance in Mianmai 37,5resistant varieties and 3 susceptible varieties were used to cross with Mianmai 37,thus the F_1 and F_2 population were obtained.Resistance of parental varieties and their hybrid progenies were analyzed genetically by artificial inoculation with CYR32 at adult stages.The results showed that the resistance to stripe rust race CYR32 in Mianmai 37 at adult stage was controlled mainly by one dominant gene,and two recessive genes were also involved.The resistance resource of Mianmai 37 derived from CIMMYT was similar to that of Chuanmai 42,5563 and MR168,but different from that of Guinong.The results indicted that Mianmai 37,as an excellent resistance resource,had a considerable value in wheat breeding by combining different resistance resources.
Keywords:wheat  stripe rust  Mianmai 37  genetic analysis
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