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

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.