利用高代回交重组自交系群体定位玉米部分农艺性状的QTL
Mapping QTLs of some agronomic traits in maize with a population of advanced backcrossing RILs

以141份玉米高代回交重组自交系群体（RIL）及受体亲本黄早四于2011年在黄冈市农业科学院试验基地、2011和2012年在武汉市华中农业大学校内试验基地进行田间试验，对穗长、穗粗、株高、穗位高、吐丝期、散粉期、雄穗分枝数等7个农艺性状进行QTL分析。结果表明：7个农艺性状共检测到18个主效QTL，单个QTL的贡献为9.79%~37.35%，其中4个QTL在多个环境下同时检测到，5个QTL与前人的报道结果一致。
Plant height,ear height,ear length,ear diameter,tassel branch number,date to silk and date to pollen shedding are important agronomical traits in maize.In this study,a population of 141 RIL lines was used to map quantitative trait locus (QTL) of seven agronomic traits under three different environments.A total of 18 QTLs associated with the seven traits were detected.Individual locus explained 9.79% to 37.35% of phenotypic variance.Four of them were detected under more than one environment,and 5 QTLs were the same as those reported previously.It will provide basis for improving these agronomic traits in maize.