【摘要】 利用RAPD分子标记检测了云南省3个山红树居群的遗传多样性和居群遗传结构。10个引物共检测到54个位点, 其中多态位点11个, 占20 37%。与其他的濒危物种相比, 山红树居群内的遗传多样性很低, 居群间的遗传分化很大(78 65%)。大量经济植物的种植加上人为的破坏, 使山红树的生境遭到严重破坏, 数量大为减少, 可能导致了山红树遗传多样性的丧失、居群间较高的遗传分化。基于以上结果, 探讨了山红树进一步的迁地保护措施。更多还原

【Abstract】 The genetic diversity and population genetic structure of three populations of Pellacalyx yunnanensis in Yunnan Province were estimated by RAPD markers.Fifty-four loci were amplified with 10 oligonucleotide primers,of which 11 loci (20.37%) were polymorphic.The genetic diversity within a population was very low,while the genetic differentiation very high (78.65%)among populations compared with other endangered species.The habitat of P.yunnanensis was severely destroyed by the people’s activities and the economic plants planted,which may result in the loss of genetic diversity and high genetic differentiation.Implications for the further conservation strategies of this endangered species were discussed based on these results.更多还原