稻瘟病抗性基因对安徽省稻瘟病菌种群抗性的影响  

Effects of Rice Blast Resistance Genes on Rice Blast Strains in Anhui Province

作　　者：张海珊 杨雪 章东方 严丹侃 顾江涛 张爱芳 ZHANG Haishan;YANG Xue;ZHANG Dongfang;YAN Dankan;GU Jiangtao;ZHANG Aifang(Institute of Plant Protection and Agro-products Safety,Anhui Academy of Agricultural Sciences,Hefei 230031,Chin)

机构地区：[1]安徽省农业科学院植物保护与农产品质量安全研究所,合肥230031

出　　处：《中国稻米》2020年第1期50-53,共4页China Rice

基　　金：安徽省农科院院长青年创新基金项目(17A1126)

摘　　要：为分析抗稻瘟病基因对安徽省稻瘟病菌株的抗性水平的影响,采用10个水稻抗稻瘟病单基因品系对安徽不同地区的稻瘟病菌株进行致病力测定,同时对201份水稻品种的抗稻瘟病基因Pi9进行扩增,结合田间抗性表现,分析抗性基因Pi9的利用价值。抗性基因Pi9、Pik、Pizt等对安徽地区的稻瘟病菌株具有较好的抗性,抗性频率分别为66%、60%和54%,其中携带Pi9抗性基因的水稻品种的田间抗性表现也较好,说明Pi9可直接作为分子标记辅助安徽地区水稻品种选育抗原基因。The virulence of rice blast resistant strains in different areas of Anhui province was determined by using 10 single gene strains of rice blast resistant. At the same time, the resistance gene Pi9 was amplified in 201 rice varieties, and its application value was analyzed in combination with the field resistance. The results showed that the resistance genes Pi9, Pik and Pizt had good resistance to the rice blast strains in Anhui province, and the resistance frequency was 66%, 60% and 54%, respectively. Field resistance of rice varieties carrying Pi9 resistance gene was also better, which indicating that Pi9 could be directly used as an antigen gene in molecular marker assisted selection breeding in Anhui province.

关 键 词：水稻 稻瘟病菌 致病力 抗性基因 

分 类 号：S511[农业科学—作物学] S435.111.4