Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Intraspecific Diversity of Korean Takydromus wolteri(Reptilia: Squamata) Based on Randomly Amplified Polymorphic DNA (RAPD) Analysis

RAPD를 이용한 한국산 줄장지뱀(Reptilia: Squamata)의 종내 다양성에 관한 연구

  • Published : 2004.06.01
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Abstract

The lacertid lizard Takydromus wolteri widely distributed in South Korea, but intraspecific diversity of this species was not almost studied. T. wolteri represented by 8 specimens collected from 5 localities were analyzed by the Randomly Amplified Polymorphic DNA (RAPD) method with 28 random decamer primers and the phenogram constructed by using the Unweighted Pair Group Method with Arithmetic Mean (UPGMA) method based on RAPD data. The populations of T. wolteri using in this paper were collected from Gyeonggi-do, Chungcheongbuk-do, Jeju-do, Jeollanam-do and Gyeongsangnam -do in South Korea. Among 68 different bands detected in RAPD analysis, 59 bands (87％) showed polymorphism. The phenogram showed that the populations of T. wolteri were grouped into two. These results suggest that T. wolteri were supported intraspecific diversity.

한반도 전지역에 줄장지뱀이 서식하고 있지만, 이 종에 대한 연구는 거의 전무한 상태이다. 한반도의 5지역(경기도, 충청북도, 제주도, 전라남도, 경상남도)의 한국산 줄장지뱀에 대해 RAPD method를 통한 종내 유전적 차이를 비교하였다. 총 28개의 primer를 사용하였고, 그 중 유의성이 있는 17개의 primer에 대한 결과를 Nei's(1972) genetic distance를 통해 유전적 거리와 UPGMA 방법을 통한 phenogram을 구하였다. 그 결과 총 68개의 밴드를 확인했고,이 중 87％인 59개의 polymorphism이 확인되었다. 이를 통한 phenogram에서는 GG1, GG2, CB1, CB2, JN이 Group 1을 이루었으며,JJ1, JJ2, GN이 Croup 2를 이루었다. 줄장지뱀의 경우 지리적 격리를 통한 집단간의 종내 변이가 발생한 것으로 추정된다. 특히, 경상남도 지방의 유전적 독립성이 두드러지는데, 이는 다른 분류군인 어류나 양서류에서도 나타나고 있다. 따라서 이들 집단에 대한 형태적, 생태적 그리고 다른 유전적 분석 등을 통한 추가적인 연구가 필요할 것이라고 판단된다.

Keywords

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