中国水稻科学2013，Vol.27Issue(4)：373-380,8.DOI:10.3969/j.issn.1001-7216.2013.04.006
粳稻穗角性状优异等位变异的挖掘
Mining Elite Alleles of Panicle Angle Trait in japonica Rice
摘要
Abstract
In order to mine elite alleles of panicle angle trait and their carrier varieties in japonica rice,association analysis between SSR loci and panicle angle trait was performed by using genotyping data of 151 SSR markers on a natural population composed of 95 japonica varieties (58 landraces and 37 cultivars) with the general linear model in software of TASSEL.Linkage disequilibrium and population structure were firstly analyzed for the population.Linkage disequilibrium at different levels was detected not only among syntenic markers but also among nonsyntenic ones.The cultivar population had a higher level of linkage disequilibrium than that of the landrace population.Genetic structure analysis showed that the natural population was composed of 6 subpopulations.Fifteen SSR loci associated with the trait were detected and located on 10 chromosomes except chromosomes 4 and 7.The markers RM7598,RM3700,RM311 and RM1125 each could explain more than 10％ of phenotypic variation.Twenty-three elite alleles and their typical carrier materials were further screened out.Of the seven typical carrier materials,Xiushui 04 and Xiushui 79 carried more elite alleles.关键词
粳稻/穗角/优异等位变异/群体结构/关联分析Key words
japonica rice/ panicle angle/ elite allele/ population structure/ association analysis分类
农业科技引用本文复制引用
牛付安,陈兰,张红,袁勤,程灿,周继华,洪德林..粳稻穗角性状优异等位变异的挖掘[J].中国水稻科学,2013,27(4):373-380,8.基金项目
教育部科技基础条件平台重点资助项目(505005) （505005）
国家863计划资助项目(2010AA101301) （2010AA101301）
教育部博士点基金资助项目(B0201100690). （B0201100690）
