Analysis of the Conservation Status, Genetic Diversity and Population Structure of Endangered Ostrya rehderiana Resources Using SSR Markers

Climate change and anthropogenic habitat destruction have led to the extinction of many species. Ostrya rehderiana (Betulaceae) is a typical rare endangered species, only five wild individuals survived. In 1980s, offspring trees were planted for ex situ conservation grown into stable cultivated populations. To protect O. resources, genetic diversity structure this species analysed using SSR markers. A total 167 alleles detected among 116 from population populations at 12 loci. The level was He = 0.88. Genetic differentiations occurred (Fst 0.17), which also validated via an analysis molecular variance (AMOVA). TM1, TM2 WC showed considerable differences WP based on Bayesian clustering analysis, phylogenetic tree reconstruction principal coordinate (PCoA). had more than one. It speculated that novel may emerged out natural processes evolution adaptation. QY with most unique has begun propagate seedlings naturally, small size geographical isolation negatively influence founding population. weaken effects bottlenecks drift, gene flow necessary. addition population, six found be important rehderiana. results study guide development policies