河南农业大学学报2018，Vol.52Issue(2)：169-178,10.
基于农大108“永久F2”群体的玉米穗部性状QTL与HL位点定位
Identification QTL and heterotic loci for maize ear-related traits using a set of "immortalized F2 " population of Nongda 108
摘要
Abstract
A set of RIL population and its immortalized F2 population that derived from elite hybrid Nongda 108 were used to identify their ear traits-related QTL and heterotic loci (HL).Field trials were conducted over two years in two locations for evaluating the phenotypes of ear-related traits.QTL analysis identified 22 and 32 ear-related traits QTL in RIL and IF2 populations,respectively.And,19 HL were detected in heterotic analysis.These QTLs and HLs are clustered across several chromosome regiorrs.Among them qEL5a,qED10a,qERs6,qRKs5 detected in the RIL population and qEL8b,qERs5,qRKs10b,qPKs10c detected in the IF2 population exhibited consistent and high contribution rates among the environments,and were main effect QTLs;in addition,hED6 and hERs6 were located in the same marker interval.The results showed that there was a correlation between the dominant level of QTL/HL and heterosis.Moreover,HL are independent from the detected QTL in controlling the same agronomy trait.关键词
玉米/穗部性状/杂种优势/“永久F2”群体Key words
maize (Zea mays L.)/ear-related traits/heterosis/immortalized F2 population分类
农业科技引用本文复制引用
陈浩,薛亚东,杨天啸,闫鹏帅,孟淑君,王璐林,张战辉..基于农大108“永久F2”群体的玉米穗部性状QTL与HL位点定位[J].河南农业大学学报,2018,52(2):169-178,10.基金项目
高等学校博士学科点专项科研基金项目(20134105110001) （20134105110001）
河南省重大科技专项(161100110500) （161100110500）
