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ISSN : 2287-8327

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Vol.29 No.3
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Genetic Diversity and Structure of a Rare and Endemic, Spring Ephemeral Plant Corydalis filistipes Nakai of Ullung Island in Korea

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2006, v.29 no.3, pp.247-252





& (2006). Genetic Diversity and Structure of a Rare and Endemic, Spring Ephemeral Plant Corydalis filistipes Nakai of Ullung Island in Korea. Journal of Ecology and Environment, 29(3), 247-252.
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Abstract

For the spring ephemeral and myrmecochorous perennia, Corydalis filistipes Nakai (Fumaria-of the species were investigated with allozyme markers. Levels of genetic diversity (A=1.73, P95% = 61..2%, Ho= 0.201, He= 0.167) were relatively lower than those of other endemic species with widespread distribution range, but considerably higher than other endemic species with similar life history traits isolated in island. The moderate level of genetic diversity within subpopulations in C. filistipes is characteristic of the species with predominantly outcrossing, myrmecochorous seed dispersal by dual function of the elaisome and mode of sexual and asexual reproduction by the cleistogamy. The analysis of fixation indices showed an overall excess of heterozygotes (mean FIS=-0.1889, FIT=-variation was found among subpopulations (FST=0.0557). The strategies of reasonable conservation and management, and the maintenance mechanism of genetic diversity of Corydalis filistipes Nakai, endemic plant species in Korea were discussed.

keywords
Allozyme, Corydalis filistipes, Endemic plant species, Genetic structure, Genetic variation, Myrmecochory, Spring ephemeral, Ullung Island김진석 등 J. Ecol. Field Biol. 29 (3) 248는 잠재적으로 위약종이며, 일부 군락은 등산로 주변에 노출되어 있어 인위적인 교란을 받기 때문에 개체수가 점차 감소되는 추세이다.하나, Allozyme, Corydalis filistipes, Endemic plant species, Genetic structure, Genetic variation, Myrmecochory, Spring ephemeral, Ullung Island김진석 등 J. Ecol. Field Biol. 29 (3) 248는 잠재적으로 위약종이며, 일부 군락은 등산로 주변에 노출되어 있어 인위적인 교란을 받기 때문에 개체수가 점차 감소되는 추세이다.하나

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