Analysis of Genetic Structure of the Endangered Species Pellacalyx yunnanensis (Rhizophoraceae) by RAPD

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.