甘蓝型油菜含油量及皮壳率的QTL分析

被引:21
作者
金梦阳
李加纳
付福友
张正圣
张学昆
刘列钊
机构
[1] 西南大学农学与生命科学学院
基金
国家自然科学基金重点项目;
关键词
甘蓝型油菜; 遗传图谱; 分子标记; 数量性状位点; 含油量; 皮壳率;
D O I
暂无
中图分类号
S565.4 [油菜籽(芸薹)];
学科分类号
摘要
【目的】通过构建甘蓝型油菜遗传连锁图谱,对含油量及皮壳率进行QTL分析。【方法】以黄籽亲本GH06和黑籽亲本P174杂交得到的F2:6家系的188个株系为作图群体,利用SRAP、SSR、AFLP及TRAP四种标记构建遗传连锁图谱,在此基础上采用复合区间作图法(CIM)对含油量及皮壳率两个性状进行QTL分析。【结果】图谱包含19个连锁群、300个标记位点,总长为1248.5cM。共得到7个与含油量相关的QTL,单位点遗传贡献率在3.73%~10.46%之间;4个与皮壳率相关的QTL,单位点遗传贡献率在4.89%~6.84%之间。【结论】黄籽油菜具有高含油量的优势;皮壳率对含油量有显著影响;SRAP标记具有较好的检测QTL位点的能力。
引用
收藏
页码:677 / 684
页数:8
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