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http://dx.doi.org/10.11110/kjpt.2013.43.3.181

Genetic variation and population structure of Asarum misandrum (Aristolochiaceae) in Korea  

So, Soonku (Department of Biological Sciences, Chonbuk National University)
Kim, Muyeol (Department of Biological Sciences, Chonbuk National University)
Publication Information
Korean Journal of Plant Taxonomy / v.43, no.3, 2013 , pp. 181-187 More about this Journal
Abstract
Genetic variation in Asaum misandrum, a woodland herb in Korea, was investigated based on allozyme analysis with starch gel electrophoresis. All of previously reported populations in Korea were sampled and seven loci from six enzymes were analyzed. Overall genetic variation of A. misandrum population showed considerably high levels of genetic variation within the species (A = 2.05, P = 71.4, $H_E$ = 0.294). A positive $F_{IS}$ value of A. misandrum indicated overall deficiency of heterozygotes, and a low $F_{ST}$ value (0.112) meant very little differentiation among populations. Factors contributing to the high levels of genetic diversity found within populations of A. misandrum include population maintenance via wide distribution range from Korea to Japan and primarily outcrossing breeding system. Although it showed moderate genetic diversity level, most habitats of the species were scattered and discontinuous. Besides, low numbers of individuals were found in the most habitats and individuals are collected frequently from the wild due to the unique shape of the flowers as well as the rarity of the species. Thus, there is a need to set up a reasonable conservation strategies including the maintenance mechanism of genetic diversity of A. misandrum.
Keywords
Asarum misandrum; Genetic variation; Conservation; Korean peninsula; Aristolochiaceae;
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