中国农业科学Issue(24)：5081-5088,8.DOI:10.3864/j.issn.0578-1752.2013.24.002
大豆粒形性状主效QTL、环境互作和上位性检测
Main, Environmentally Interacted and Epistatic QTL for Seed Shape Traits in Soybean
摘要
Abstract
[Objective]In this study, the mixed linear model method was used to identify the main-effect, environmentally interacted and epistatic quantitative trait loci (QTLs) for seed shape traits in soybean.[Method]A total of 447 recombinant inbred lines (RILs) derived from a cross of Jindou 23 (cultivar, female parent) and ZDD2315 (semi-wild, male parent) were scanned by 232 SSR markers and measured for the above traits in 2010 to 2012. The marker information was used to construct linkage groups. All the phenotypic values along with marker and linkage-group information were used to detect all kinds of QTLs for the above traits.[Result] Seven QTLs for seed length, seed width, seed thickness, seed length-to-width ratio, seed length-to-thickness ratio and seed width-to-thickness ratio, were mapped and placed on linkage groups D2, C2, J_2 and O. Positive additive effects of QTLs for seed length, seed length-to-thickness ratio and seed width-to-thickness ratio were observed and their elite alleles were derived from Jindou 23. Three pairs of additive × additive epistasis and their interactions with environment for seed width, seed width-to-thickness ratio were detected.[Conclusion]The main-effect, epistatic and environmentally interacted QTLs have the biggest, middle and smallest influences on the above traits, respectively.关键词
大豆/粒形/QTL与环境互作/上位性/混合线性模型Key words
soybean/seed shape trait/QTL and environment interaction/epistasis/mixed linear model引用本文复制引用
梁慧珍,余永亮,杨红旗,张海洋,董薇,杜华,崔暐文,刘学义,方宣钧..大豆粒形性状主效QTL、环境互作和上位性检测[J].中国农业科学,2013,(24):5081-5088,8.基金项目
河南省科技创新杰出人才计划（114200510002）和国家转基因重大专项 （）
