甘蓝型油菜矮秆突变体M176的株高性状遗传分离分析和QTL分析

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甘蓝型油菜是我国重要的油料作物,改变其品质和倒伏性是增加油菜产量的关键。本研究利用EMS诱变甘蓝型油菜NJ7982,筛选获得矮秆突变材料M176,它与高秆甘蓝型油菜杂交,获得了2个F2群体,对M176的株高数量性状进行遗传分离分析。还以M176和矮秆亲本J194的F2群体中的117个株系为材料,利用数量性状的思想,用公开发表和新开发的SSR标记对其株高性状进行QTL初步定位。该研究为油菜育种提供了降低植株高度和抗倒伏的有价值的新品种。主要研究结果如下:(1)遗传规律分析
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