由小麦条锈菌Puccinia striiformis f.sp.tritici侵染引起的小麦条锈病是一种可以借助气流进行远距离传播的病害,具有发生面积广、流行频率高、危害严重等特点。该病害一直威胁着我国西北、华北、黄淮和西南等地冬春麦区小麦生产。由于该病菌毒性变异频繁,易产生新的毒性小种,常常引起小麦条锈病的周期性流行。因此,了解条锈菌群体结构组成及变异情况,对于制定有效的条锈病防治措施 Stripe rust of wheat caused by the infection of Puccinia striiformis f. Sp. Tritici is a kind of disease that can be transmitted by airflow for long-distance transmission. It has the characteristics of wide area, high prevalence and serious harm. The disease has always threatened wheat production in winter and spring wheat areas in northwestern China, northern China, Huanghuai and southwest China. Due to the frequent virulence of the virus, easy to produce new toxic race, often lead to the cyclical epidemic of wheat stripe rust. Therefore, to understand the composition and variation of stripe rust population structure, for the development of effective stripe rust prevention and control measures