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中国野桑蚕遗传多样性的AFLP分析
引用本文:鲁成,赵爱春,向仲怀,万春玲.中国野桑蚕遗传多样性的AFLP分析[J].动物学研究,2002,23(2):166-172.
作者姓名:鲁成  赵爱春  向仲怀  万春玲
作者单位:1. 西南农业大学,蚕丝学院农业部蚕桑学重点实验室,重庆,400716
2. 中国科学院遗传研究所,北京,100101
基金项目:国家自然科学基金资助项目 ( 39870 6 0 3)
摘    要:采用AFLP技术对我国具有代表性的7个省市的10个野桑蚕(Bombyx mandarina)种群和2个家蚕(Bombyx mori)品种的遗传多样性进行了研究。结果表明:杭州、陕西和重庆3个地区的野桑蚕种群间及种群内个体间的遗传距离都比家蚕品种大。野桑蚕存在广泛的变异,7个省市的10个野桑蚕种群之间的遗传距离为0.164-0.444(平均值为0.3826),平均杂合度为0.7061,表明野桑蚕自然群体的遗传多样性十分丰富。

关 键 词:中国  野桑蚕  遗传多样性  AFLP分析  家蚕  杂合度
文章编号:0254-5853(2002)02-0166-07

AFLP Analysis of Genetic Diversity of Bombyx mandarina in China
LU Cheng ,ZHAO Ai chun ,XIANG Zhong huai ,WAN Chun ling.AFLP Analysis of Genetic Diversity of Bombyx mandarina in China[J].Zoological Research,2002,23(2):166-172.
Authors:LU Cheng  ZHAO Ai chun  XIANG Zhong huai  WAN Chun ling
Institution:LU Cheng 1,ZHAO Ai chun 1,XIANG Zhong huai 1,WAN Chun ling 2
Abstract:The genetic diversity and relationship among 10 populations of mulberry wild silkworm, Bombyx mandarina ,from 7 regions of China and two races of silkworm, Bombyx mori ,were analyzed by AFLP technique. The results showed that the genetic distance of inter and intra populations in mulberry wild silkworm from three regions, Hangzhou, Shaanxi and Chongqing, was even larger than that of races in domestic silkworm. Extensive genetic variation existed among 10 populations of mulberry wild silkworm. The genetic distance between these populations ranges from 0 164 to 0 444(the average value is 0 3826) and the average heterozygosity value of them is 0 7061,which also indicates that mulberry wild silkworm is rich in genetic diversity.
Keywords:Bombyx mandarina  Bombyx mori  AFLP  Heterozygosity  Genetic diversity
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