Genetic variation of Quercus variabilis in Korea based on RAPD marker analysis

초록

Quercus variabilis is one of the most important tree species in both utilization of forest resources and management of forest ecosystem in Korea. To obtain the basic information for the establishment of breeding strategy and efficient management of genetic resources, five populations of Q. variabilis from 89 selected plus trees were studied using POPGENE and AMOVA analysis based on DNA markers focussing on the genetic diversity and variation among populations. The overall polymorphic amplicons were 78.6% and levels of genetic diversity within 5 populations were similar each other (Shannon's Index: 0.289 ∼ 0.423 [mean : 0.366]). The values of total genetic diversity (H<inf>t</inf>) and average gene diversity within population (H<inf>s</inf>) were 0.265 and 0.239, respectively. The degree of genetic differentiation (G<inf>st</inf>: 0.098) was relatively high compared with those of other tree species. Based on the cluster analysis of UPGMA, genetic relationships among 5 populations were not coincided with the pattern of geographic distribution.

키워드