不同生态环境条件下小麦籽粒灌浆速率及千粒重QTL分析

被引:46
作者
王瑞霞 [1 ]
张秀英 [1 ]
伍玲 [2 ]
王瑞 [3 ]
海林 [1 ]
闫长生 [1 ]
游光霞 [1 ]
肖世和 [1 ]
机构
[1] 中国农业科学院作物科学研究所/国家农作物基因资源与基因改良重大科学工程
[2] 四川省农业科学院作物研究所
[3] 安徽省农业科学院作物研究所
关键词
小麦; 数量性状位点; 重组自交系; 灌浆速率; 千粒重;
D O I
暂无
中图分类号
S512.1 [小麦];
学科分类号
摘要
以142个和尚麦/豫8679的F7:8重组自交系及其亲本为试验材料,分析了籽粒平均灌浆速率、最高灌浆速率及千粒重在北京(2006,2007)、安徽合肥(2007)和四川成都(2007)4个生态环境下的性状表现,并利用已构建的含有170个SSR标记和2个EST标记的遗传图谱,对这3个性状进行了QTL定位分析。共检测到54个QTLs,涉及小麦1A、1B、2A、2D、3A、3B、3D、4A、4D、5A、5B、6D和7D染色体。其中,17个与平均灌浆速率相关,可解释表型变异的7.17%~ 20.83%;16个与最高灌浆速率相关,可解释表型变异的6.31%~ 15.95%;21个与千粒重相关,可解释表型变异的4.36%~ 16.80%。另外,在1A、1B、2A、3B、4D、6D和7D染色体上发现10个涉及"一因多效"或紧密连锁位点的基因组区段,有助于了解籽粒灌浆和籽粒产量相关性状的遗传基础。
引用
收藏
页码:1750 / 1756
页数:7
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