西南地区硬枝野荞麦(Fagopyrum urophyllum)居群的遗传多样性研究  

Genetic Diversity of Fagopyrum urophyllum Populations in Southwest China

作　　者：罗定泽[1] 侯鑫[2] 赵佐成[3] 

机构地区：[1]四川师范大学化学与生命科学学院,成都610066 [2]内蒙古大学生物系,呼和浩特010021 [3]中国科学院成都生物研究所,成都610041

出　　处：《武汉植物学研究》2001年第2期107-112,共6页Journal of Wuhan Botanical Research

摘　　要：采用等位酶电泳技术研究了云南省中北部昆明、富民、宾川 3县 (市 )及四川省西南布拖县的硬枝野荞麦 (Fagopyrum urophyllum) 6个天然居群的遗传多样性和分化。硬枝野荞麦居群内维持有较高的遗传多样性 ,多态位点比率为 50 .0 % ,预期杂合度和观察杂合度分别为 0 .2 51和 0 .471。并对硬枝野荞麦 (F.urophyllum)Based on allozyme electrophoresis, the genetic diversity and differe ntiation among 6 wild populations of Fagopyrum urophyllum from the counties Kunming, Fumin and Binchuan in the north central part of Yunnan Province, the county Butuo in the southweast part of Sichuan Province, China, were studied in this paper. The results showed that the genetic diversity within wild population was high. The percentage of loci polymorphism (P) was 50 0%, the means of expected and observed heterozygosities were 0 251 and 0 471, respectively . The genetic variation between cultivated buckwheat and wild population was compared.

关 键 词：等位酶 等位基因频率 遗传多样性 硬枝野荞麦 

分 类 号：S517.03[农业科学—作物学]