Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Genetic Variation of Alien Invasive Red Clover (Trifolium pratense) in Korea

붉은토끼풀의 유전적 변이와 집단구조

  • Huh Man Kyu (Department of Molecular Biology, Dongeui University) ;
  • Chung Kyung-Tae (Life Science and Biotechnology Major, Dongeui University) ;
  • Jeong Yong-Kee (Life Science and Biotechnology Major, Dongeui University)
  • 허만규 (동의대학교 분자생물학과) ;
  • 정경태 (동의대학교 응용생명과학) ;
  • 정영기 (동의대학교 응용생명과학)
  • Published : 2005.04.01
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Abstract

Trifolium pratense (red clover, Fabaceae) is a short-lived herbaceous species and the species is introduced from Europe or North America to Korea approximately 60 years ago. Allozyme variability was examined in populations representing this species. A high level of genetic variation was found in T. pratense populations. Ten of 19 loci $(52.6\%)$ showed detectable polymorphism. Genetic diversity was 0.220. The sexual reproduction, high fecundity, and colonization process are proposed as possible factors contributing to high genetic diversity. Genetic diversity (0.220) was lower than that (0.285) of North American red clover, T. pratense. Korean populations of red clover may be founded by a small sample of larger or moderate populations. An indirect estimate of the number of migrants per generation (Nm = 4.20) indicated that gene flow was extensive among Korean populations of this species.

붉은토끼풀(Trifolium pratense)은 전세계적으로 분포하는 근연성 초본종이다. 붉은토끼풀은 유럽 또는 북미에서 약 60년전 한국으로 도입되었다. 전분 젤 전기영동을 사용하여 한국내 분포하는 붉은토끼풀의 유전적 변이와 집단구조를 분석하기 위해 사용되었다. 붉은토끼풀에서 높은 유전적 다양성이 발견되었다. 19개 대립유전좌좌위중 10개$(52.6\%)$는 다형현상을 나타내었다. 유전적 다양성은 0.220이었다. 유성생식, 높은 다산성, 집단형성화 과정이 높은 유전적 다양성을 유지하는데 기여하는 것으로 제시하였다. 한국의 붉은토끼풀의 다양도(0.220)는 북미의 붉은토끼풀 다양도(0.285)보다 낮았다. 이는 북미의 일부 집단에서 유입되었거나 창시자효과 때문일 것으로 사료된다. 간접적 평가를 통한 세대당 이주하는 수는 4.20이였고, 유전자 유동은 한국집단에서 높게 유지되고 있음을 시사한다.

Keywords

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