Genetic diversity and genetic structure of Eucommia ulmoides populations based on SSR markers
Genetic diversity and population genetic structure were analyzed in Eucommia ulmoides Oliv.to provide useful information for management,protection and utilization.The population genetic diversity,population genetic structure,cluster analysis,and molecular variation analysis of variance(AMOVA) of 868 individuals from 42 populations was performed by using nine SSR primers.The main results are as follows:(1)The genetic diversity of populations existed the high level polymorphism.(2)The population genetic structure was assessed that all populations were classified into two different genetic clusters.(3)Analysis of molecular variance (AMOVA) and clustering analysis indicated showed that the most of the genetic variation within populations (93%),more than that among populations (7%).and there is a low level of population differentiation.The paper suggests,the genetic diversity of E.ulmoides existed the high level polymorphism.E.ulmoides has low genetic differentiation,and high similarity within populations:A high genetic differentiation within populations was revealed,suggesting that more individuals from different populations should be collected to protect the genetic diversity of E.ulmoides.