Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Genetic Variation of Coreoleuciscus splendidus Populations from Four Major Rivers in Korea as Assessed by RAPD PCR

RAPD PCR에 의한 4대강 쉬리 Coreoleuciscus splendidus 개체군들의 유전변이 분석

  • Song, Ha-Yoon (Department of Marine Biotechnology, Soonchunhyang University) ;
  • Bang, In-Chul (Department of Marine Biotechnology, Soonchunhyang University)
  • 송하윤 (순천향대학교 해양생명공학과) ;
  • 방인철 (순천향대학교 해양생명공학과)
  • Received : 2009.06.12
  • Accepted : 2009.06.26
  • Published : 2009.06.30
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Abstract

Random Amplified Polymorphic DNA (RAPD) analysis was used to investigate the genetic variations of Coreoleuciscus splendidus within and among the West Korea Subdistrict populations (in Han and Geum Rivers) and the South Korea Subdistrict populations (in Seomjin and Nakdong Rivers). Twelve random primers were employed to generate RAPD markers. All primers were produced to identify specific RAPD markers between the West and South Korea Subdistrict populations. Analyses of genetic similarity and distance among the West and South Korea Subdistrict populations of C. splendidus also revealed similar results, with low genetic similarity (0.49~0.53) and high distance value (0.63~0.71). UPGMA dendrogram based on genetic distance was also similar in results. Therefore, the West Korea Subdistrict populations and the South Korea Subdistrict populations vary in genetic structure, and C. splendidus in the South Korea Subdistrict may represent a different species.

본 연구는 RAPD PCR 분석을 통하여 한국의 서한아 수계(한강, 금강)와 남한아 수계(섬진강, 낙동강)에 서식하는 쉬리 집단들 간의 유전변이를 비교하였다. 4집단들 간의 유전적 변이를 분석한 결과, 사용한 12개의 random primer들 모두에서 서한아 수계 집단과 남한아 수계의 집단들을 구분하여 주는 특이적 PCR 단편들을 확인할 수 있었다. 유전적 유사도 분석에서 한강, 금강의 서한아 수계 집단들과 섬진강, 낙동강의 남한아 수계 집단들의 유전적 유사도는 0.49~0.53로 낮게 나타났고 유전적 거리는 0.63~0.71로 높게 나타났다. 유전적 거리에 기초한 UPGMA dendrogram 분석에서도 서한아 수계와 남한아 수계의 집단들이 명확하게 구분되었다. 따라서 서한아와 남한아 수계의 쉬리 집단은 유전적 구조에 있어 큰 차이가 있으며, 남한아 수계의 쉬리는 서한아 수계 쉬리와 진화적으로 뚜렷하게 구분되는 집단으로 판단된다.

Keywords

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