利用单片段代换系群体定位玉米穗部性状的QTL  

Mapping of the QTL for ear related traits using a series of single segment substitution lines in maize

作　　者：李卫华[1] 王洪秋[1] 袁亮[1] 张向歌[1] 谢慧玲[1] 胡彦民[1] 汤继华[1] 

机构地区：[1]河南农业大学河南粮食作物生理生态与遗传改良重点实验室培育基地,河南郑州450002

出　　处：《河南农业大学学报》2013年第2期143-146,181,共5页Journal of Henan Agricultural University

基　　金：国家自然科学基金项目(31071431)

摘　　要：以具有优良玉米自交系lx 9801背景的昌7-2单片段代换系群体为基础材料,2011年在郑州和浚县两点对玉米穗部性状进行了QTL分析.利用显著性检验的方法共检测到4个玉米穗部性状的22个QTL,其中穗长检测到9个QTL,穗粗检测到4个QTL,穗行数检测到3个QTL,行粒数检测到6个QTL,有4个QTL在两个环境中同时被检测到,这些QTL为进一步基因克隆与利用奠定了基础.In this investigation, a set of Chang 7 -2 single segment substitution line population in the background of elite inbred line lx 9801 were used as materials for QTL mapping of ear related traits in maize, and the population was evaluated at Zhengzhou and Xunxian location in 2011. Twenty-two different QTL for the four ear related traits were identified at P 〈 0.05 significance level, including 9 QTL for ear length, 4 QTL for ear diameter, 3 QTL for row number, 6 QTL for kernel per row. And 4 different QTL were detected in the two locations simultaneously.

关 键 词：玉米 单片段代换系 穗部性状 QTL定位 

分 类 号：S513[农业科学—作物学]