水稻抗恶苗病微效QTL的定位  

Analysis of QTLs for Resistance to Rice Bakanae Disease

作　　者：杨长登[1] 郭龙彪[1] 李西明[1] 季芝娟[1] 马良勇[1] 钱前[1] 

机构地区：[1]中国水稻研究所水稻生物学国家重点实验室,浙江杭州310006

出　　处：《中国水稻科学》2006年第6期657-659,共3页Chinese Journal of Rice Science

基　　金：浙江省自然科学基金重点资助项目(Z304422);浙江省水稻育种重大专项资助项目(2004C12020-4);浙江省农业科研一般资助项目(2005C32002)

摘　　要：对粳稻品种春江06和籼稻品种TN1以及由它们构建的加倍单倍体(DH)群体,采用芽期接菌方法接种恶苗病菌,进行抗恶苗病微效QTL的定位分析。共检测到2个QTL:qB1和qB10,分别位于第1和第10染色体上,2个QTL的抗性基因都来自春江06,贡献率相近。A japonica/indica double haploid （DH） population, derived from Chunjiang 06 and TN1, was used to analyze QTLs for resistance to rice bakanae disease by artificial inoculation at the budding stage. Both of the parents were susceptible to bakanae disease. Two QTLs （qB1 and qBlO） were detected for resistance to bakanae disease on chromosomes 1 and 10, respectively, and both of the two QTLs showed additive effects.

关 键 词：水稻 恶苗病 数量性状座位 加倍单倍体群体 抗病性 

分 类 号：S435.111.4[农业科学—农业昆虫与害虫防治]