GW3-1和IND109标记对普通小麦粒重的QTL定位分析(英文)

被引:6
作者
李学军 [1 ]
李立群 [1 ]
王辉 [1 ]
Mark ESorrells [2 ]
机构
[1] 西北农林科技大学农学院
[2] 康乃尔大学遗传育种系
关键词
小麦; 数量性状位点; 重组自交系; 千粒重;
D O I
暂无
中图分类号
S512.1 [小麦];
学科分类号
摘要
应用一个由115个系组成的W7984/Opata85的重组自交系(RIL)群体,建立了一个由394个(292个RFLP、94个SSR和8个特殊的基因杂交探针)DNA分子标记组成的遗传连锁图,对小麦千粒重进行了单个标记的回归分析和复合区间作图的QTL定位,在单个标记的回归分析中检测到11个千粒重的QTLs(P<0.01);复合区间作图分析结果表明,其中4个标记bcd348a、GW3-1、IND109和Rz2的遗传效应较大,其贡献率分别为9.1%、19.0%、8.07%和8.14%,分别位于小麦的2BS、4AL、5BL和7DS上,特别是在水稻第3条染色体上控制籽粒大小的GW3-1和IND109分别位于小麦4A和5B染色体的长臂端.研究结果对小麦应用分子标记辅助选择或分子克隆基因有重要的参考价值.
引用
收藏
页码:1106 / 1111
页数:6
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