小麦品种天867抗条锈性评价和遗传分析  

Resistance Evaluation and Genetic Analysis of Wheat Cultivar Tian 867 to Strip Rust

作　　者：尹军良[1] 马东方[2] 周新力[1] 王保通[1] 井金学[1] 

机构地区：[1]西北农林科技大学旱区作物逆境生物学国家重点实验室,陕西杨凌712100 [2]长江大学农学院,湖北荆州434025

出　　处：《麦类作物学报》2015年第1期45-49,共5页Journal of Triticeae Crops

基　　金：高等学校学科创新引智计划项目(B07049);国家公益性(农业)行业科研专项(2009003035)

摘　　要：为明确冬小麦天867对国内当前流行条锈菌优势小种的抗性及遗传规律,并为在育种中对该品种的推广布局提供科学依据,本研究对其进行了田间混合和分小种接种、室内苗期接种和高温成株接种,并通过接种F2遗传群体,分析了天867对不同小种的抗性和遗传规律。结果表明,天867对CYR29、CYR30、CYR31、CYR33、Sun11-4和Sun11-11的抗性免疫到近免疫,其控制不同小种抗性的基因数目和互作方式不同,而对CYR32仅具有高温成株抗性。In order to reveal the resistance mechanism of Tian 867 to the 7current dominant Pst races of China,field tests were done by inoculating this cultivar with races mixture and single race one by one,then its resistance was evaluated at seedling stage,under high temperature and at adult stage in controlled situations.Then,the F2 offsprings from the cross between Tian 867 and Mingxian 169 were inoculated and evaluated to analyze the resistance characters and genetic discipline.The results showed that Tian 867 is immune and nearly immune to CYR29,CYR30,CYR31,CYR33,Sun11-4and Sun11-11,and the gene（s）controlling the resistances are different in quantity and interactions.Tian 867 had high temperature and adult resistance only to CYR32.

关 键 词：小麦 条锈病 抗病基因 遗传分析 

分 类 号：S512.1[农业科学—作物学] S332.2