河南农业大学学报2018，Vol.52Issue(2)：157-162,6.
玉米叶高点长等叶型性状QTL定位及上位性效应分析
QTL mapping and epistatic effect analysis of high point long and other leaf shape related traits in maize
摘要
Abstract
Using a set of RIL populations containing 223 pedigrees derived from Zong 3 × Yu 87-1 as material,the phenotypes of the three sites were used to identify the height of the maize leaves using genetic linkage maps constructed from 1243 SNP markers for leaf length,leaf width and leaf area for QTL mapping and epistasis analysis.The results showed that 10 significant QTLs were detected in 4 leaf-type traits.The interactions between these QTLs and the environment did not reach significant levels.In these QTLs,qLf5-1,qLf8-1,and qLL8-1,which regulate long leaf height,accounted respectively for 7.20％,6.06％,and 6.39％ of phenotypic variation,indicating that these three major QTLs are regulating the important locus of leaf-shaped traits.By epistasis effect analysis,a total of 6 pairs of sites interactions were detected,and the interaction effect was 2.30％～7.39％,which belonged to non-significant QTL site interaction,in which the epistasis effect and environment interaction of the two pairs of sites interacted with each other.The effect was significant,indicating that epistatic effects accounted for a certain proportion of the inheritance of leaf-type traits,but also affected by the environment.关键词
玉米/叶型/QTL定位/上位性效应Key words
maize/leaf type/QTL mapping/epistatic effect分类
农业科技引用本文复制引用
任照彬,王会涛,豆丹丹,任真真,柳华峰,库丽霞,陈彦惠..玉米叶高点长等叶型性状QTL定位及上位性效应分析[J].河南农业大学学报,2018,52(2):157-162,6.基金项目
国家自然科学基金项目(31571678) （31571678）
河南省科技重大专项项目(161100110500-0206) （161100110500-0206）
