河南农业科学Issue(11):82-86,96,6.
CIMMYT小麦Kingbird和PBW343中条锈病和叶锈病成株抗性QTL分析
QTL Mapping of Adult-plant Resistance Genes to Leaf Rust and Stripe Rust in CIMMYT Wheat Kingbird and PBW343
摘要
Abstract
In order to detect and map the QTL to leaf rust and stripe rust in CIMMYT wheat lines Kingbird and PBW343,a total of 181 recombinant inbred lines (RILs)derived from the cross Kingbird and PBW343 were planted in Mexico to score disease severity of leaf rust and stripe rust to obtain the phenotypic data.A total of 406 DArT markers with polymorphism between parents were used to test the whole 1 8 1 RILs to obtain the genotypic data.Phenotypic data and genotypic data were used to map QTL by softwares Map manager QTXb20 and QTL IciMapping 3.2 with composite interval mapping strategy.The results showed that a total of three QTLs for leaf rust resistance and one QTL for stripe rust resistance were detected on chromosome 1A,7DS,5BL and 3BS,respectively,and explaining 5.57%,11.94%,5.11% and 9.03% of the phenotypic variance. The QTLs on 7DS and 3BS were from Kingbird,and the other two QTLs were detected in PBW343.These QTLs enrich the wheat slow rusting gene pool and will give theory and technology support for wheat resistance breeding.关键词
小麦/叶锈病/条锈病/成株慢锈基因/QTL作图Key words
wheat/leaf rust/stripe rust/adult-plant slow rusting genes/QTL mapping分类
农业科技引用本文复制引用
张培培,张亚琦,李寒冰,高璞,李柳,李星,李在峰,刘大群..CIMMYT小麦Kingbird和PBW343中条锈病和叶锈病成株抗性QTL分析[J].河南农业科学,2014,(11):82-86,96,6.基金项目
国家自然科学基金项目(31361140367);河北省自然科学基金项目(C2014204113);河北省教育厅优秀青年项目 ()