利用22个表型性状和60个微卫星(simple sequence repeat,SSR)位点对黑龙江省140份代表性种质(78份地方品种和62份育成品种)进行分析,根据UPGMA(unweighted pair group method with arithmetic mean)和Model-base对SSR数据进行遗传结构...利用22个表型性状和60个微卫星(simple sequence repeat,SSR)位点对黑龙江省140份代表性种质(78份地方品种和62份育成品种)进行分析,根据UPGMA(unweighted pair group method with arithmetic mean)和Model-base对SSR数据进行遗传结构划分。结果表明,参试品种可分为2大类群,第Ⅱ类群的各项多样性指标均高于第I类群,2个类群遗传距离为0.2427;PCO结果显示这2个类群在不同区域,这与地理来源和育成年代密切相关。依据品种类型分为育成品种和地方品种两组,后者的各项多样性指标均高于前者,两组间的遗传距离为0.1131。依据表型数据的PCO分析表明,分布区域与品种类型有关,与SSR结构分类的结果吻合度低,两组品种主要在3个主成分的6个表型性状上有所不同。它们不是2个相对独立的遗传群体,根据分子标记和表型分类各有特点;建议在种质遗传多样性研究中将分子数据和表型数据结合起来。展开更多
With the completion of the Populus genome sequence in 2006,the study on functional genomics in Populus has become a major task.Establishment of Populus mutant population is an essential approach for forestry functiona...With the completion of the Populus genome sequence in 2006,the study on functional genomics in Populus has become a major task.Establishment of Populus mutant population is an essential approach for forestry functional genomics study.The activation tagging is a promising and powerful method to construct mutant library of Populus and to further discover new gene and elucidate its function now.A novel T-DNA activation tagging pCAS05 was constructed for forest functional genomics in this study.We could select conveniently and easily transgenic plants by spraying Basta because bar gene is constructed in this vector as a selection marker.Moreover,we could also construct a large scale mutant library in Populus by this activation tagging because of effectively selection of bar gene.展开更多
文摘利用22个表型性状和60个微卫星(simple sequence repeat,SSR)位点对黑龙江省140份代表性种质(78份地方品种和62份育成品种)进行分析,根据UPGMA(unweighted pair group method with arithmetic mean)和Model-base对SSR数据进行遗传结构划分。结果表明,参试品种可分为2大类群,第Ⅱ类群的各项多样性指标均高于第I类群,2个类群遗传距离为0.2427;PCO结果显示这2个类群在不同区域,这与地理来源和育成年代密切相关。依据品种类型分为育成品种和地方品种两组,后者的各项多样性指标均高于前者,两组间的遗传距离为0.1131。依据表型数据的PCO分析表明,分布区域与品种类型有关,与SSR结构分类的结果吻合度低,两组品种主要在3个主成分的6个表型性状上有所不同。它们不是2个相对独立的遗传群体,根据分子标记和表型分类各有特点;建议在种质遗传多样性研究中将分子数据和表型数据结合起来。
文摘With the completion of the Populus genome sequence in 2006,the study on functional genomics in Populus has become a major task.Establishment of Populus mutant population is an essential approach for forestry functional genomics study.The activation tagging is a promising and powerful method to construct mutant library of Populus and to further discover new gene and elucidate its function now.A novel T-DNA activation tagging pCAS05 was constructed for forest functional genomics in this study.We could select conveniently and easily transgenic plants by spraying Basta because bar gene is constructed in this vector as a selection marker.Moreover,we could also construct a large scale mutant library in Populus by this activation tagging because of effectively selection of bar gene.