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甘蓝型油菜5个重要性状QTL分析
  • 摘要

    利用种皮色泽差异显著的甘蓝型油菜(Brassica napus)黄籽GH06和黑籽P174为亲本以及由它们构建的132个F2∶3家系群体,对饼粕蛋白质含量、皮壳率、皮壳含油量、千粒重及种子含油量5个性状进行考察及QTL分析,5个性状均表现为连续分布,有的甚至表现出单向或双向超亲优势,表明5个性状均为多基因控制的数量性状.5个性状共检测到13个QTL,其中千粒重1个QTL,对表型变异贡献率为18.7%;饼粕蛋白质含量5个QTL,解释表型变异在7.8%~14.4%之间;皮壳率3个QTL,解释表型变异在26.5%~32.8%之间;皮壳含油量3个QTL及种子含油量1个QTL,解释表型变异在8.3%~12.1%之间.在第20连锁群上,发现有饼粕蛋白质含量QTL与皮壳含油量和千粒重QTL重叠的区段.

  • 作者

    刘列钊  林呐  谌利  唐章林  张学昆  李加纳  LIU Lie-zhao  LIN Na  CHEN Li  TANG Zhang-lin  ZHANG Xue-kun  LI Jia-na 

  • 作者单位

    西南大学农学与生命科学学院,重庆,400715

  • 刊期

    2006年5期 ISTIC PKU

  • 关键词

    甘蓝型油菜  分子标记  QTL 

参考文献
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