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Korean J. Pl. Taxon > Volume 42(4); 2012 > Article
Korean Journal of Plant Taxonomy 2012;42(4): 253-259.
doi: https://doi.org/10.11110/kjpt.2012.42.4.253
한국 특산식물 변산바람꽃(Eranthis byunsanensis)의 유전적 변이
소순구 , 이병순 , 박기룡
Genetic variation in populations of the Korean endemic Eranthis byunsanensis (Ranunculaceae)
Soon Ku So, Byong Soon Lee, Ki Ryong Park
Abstract
The genetic variation in populations of Eranthis byunsanensis, an endemic and rare species of Korea, was studied using starch gel electrophoresis. All five known populations were sampled for allozyme electrophoresis of nine enzymes coded by 10 loci. The overall genetic variation of E. byunsanensis population was shown to be considerably high within the populations (A = 2.4, P = 90.0, HE = 0.311). A positive FIS value of E. byunsanensis indicated an overall deficiency of heterozygotes, and a low FST value (0.131) showed little differentiation among populations. The high genetic variation, less genetic differentiation among populations, and a significant amount of heterozygote deficiency propose the hypothesis that they have an experience of recent isolation and fragmentation of their habitat. Thus, the rate of gene flow has been drastically reduced, and the rate of inbreeding in E. byunsanensis populations has increased. Current habitats in Mai-san and Naro-do are vulnerable due to their small population size and the levels of anthropogenic activity in the region constantly threatening survival of this species. Because of the high genetic variation and low levels of differentiation among populations in E. byunsanensis, it is not issue which populations have a priority for protection, but we may concern the plan to maintain population continuously and diminish the rate of inbreeding.
KeyWords: Eranthis byunsanensis, genetic variation, conservation
주요어: 변산바람꽃, 유전적 변이, 보전
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