胡德升,谢旭东,张向歌,杨慧丽,许蒙蒙,李卫华,薛亚东

• 1:河南农业大学农学院
• 2:河南省农业广播学校中牟分校

摘要(Abstract)：

以优良自交系lx 9801背景的昌7-2单片段代换系为基础材料,利用与自交系T 7296构建的测交群体,通过1年2点的田间试验,对玉米株高和穗位高的数量性状位点(QTL)和杂种优势位点(HL)进行了定位。结果表明,单片段代换系群体在2个环境中定位了16个和13个控制玉米株高和穗位高的QTL,其中有8个株高和4个穗位高的QTL在2个环境中同时被检测到。测交群体在2个环境中共检测到9个株高和6个穗位高的HL,分别有2个HL在2个环境中同时被检测到。此外,株高和穗位高分别有3个QTL和HL位于相同的染色体片段上,说明株高和穗位高的表型性状和杂种优势可能有部分相同的基因控制。

关键词(KeyWords)： 玉米;株高;穗位高;杂种优势位点;单片段代换系;测交群体

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(91335205)

作者(Author): 胡德升,谢旭东,张向歌,杨慧丽,许蒙蒙,李卫华,薛亚东

DOI: 10.16445/j.cnki.1000-2340.2016.01.002

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