Genetic Diversity and Spatial Genetic Structure of Populus koreanaPopulation in Mt. Odae, Korea

摘要

This study describes analysis of genetic diversity and spatial genetic structure of Korean poplar (Populus koreana Rehder) in Mt. Odae using 1-SSR markers. P. koreana is a deciduous broad-leaved tree species that primarily grows in the alpine valleysof China, Russia and North Korea. In South Korea, P. koreana is found limitedly in Gangwon province. Especially, the population in Mt. Odae is located on the southern limit line, its importance is emphasized from the genetic resource conservation perspective. The Shannon's diversity (7=0.230) and the expected heterozygosity (H=Q.151) were relatively low as compared with those of other plant species. Spatial autocorrelation analysis using Tanimoto's distance showed that the genetic patch was founded within 400 m. It is suggested that individual trees for ex situ conservation should be sampled with a minimum distance of 400 m between trees.