한국어류학회지 (Korean Journal of Ichthyology)

  • 제27권3호
  • /
  • Pages.199-204
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  • 2015
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  • 1225-8598(pISSN)
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  • 2288-3371(eISSN)
한국어류학회 (The Ichthyological Society of Korea)
권호 표지

묵납자루 Acheilognathus signifer와 납자루 A. lanceolatus 사이의 자연 잡종 출현

Occurrence of a Natural Hybrid between Acheilognathus signifer and A. lanceolatus (Pisces: Cyprinidae)

  • 김형수 (전북대학교 자연과학대학 생물학과, 부설 생물다양성연구소) ;
  • 윤승운 (전북대학교 자연과학대학 생물학과, 부설 생물다양성연구소) ;
  • 김현태 (전북대학교 자연과학대학 생물학과, 부설 생물다양성연구소) ;
  • 박종영 (전북대학교 자연과학대학 생물학과, 부설 생물다양성연구소)
  • Kim, Hyeong Su (Department of Biological Science and Institute for Biodiversity, College of Natural Sciences, Chonbuk National University) ;
  • Yun, Seung Woon (Department of Biological Science and Institute for Biodiversity, College of Natural Sciences, Chonbuk National University) ;
  • Kim, Hyun Tae (Department of Biological Science and Institute for Biodiversity, College of Natural Sciences, Chonbuk National University) ;
  • Park, Jong Young (Department of Biological Science and Institute for Biodiversity, College of Natural Sciences, Chonbuk National University)
  • 투고 : 2015.09.10
  • 심사 : 2015.09.25
  • 발행 : 2015.09.30
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초록

묵납자루 Acheilognathus signifer와 납자루 A. lanceolatus간 잡종으로 추정되는 개체를 한강 수계의 김화남대천에서 채집하였다. 잡종의 기원을 확인하기 위하여 형태적 특징과 미토콘드리아 cytochrome b gene (cyt b)와 recombination-activating gene 1 (RAG-1)를 분석하였다. 외부 형태를 분석한 결과 잡종 개체는 등지느러미와 뒷지느러미 반문, 뒷지느러미 색깔, 몸의 체색 등은 두 부모종의 중간적 형질을 보였다. 미토콘드리아 cyt b 분석 결과 잡종 개체는 묵납자루와 염기서열이 99.9% 일치하여 묵납자루가 모계임이 밝혀졌다. 또한 RAG-1 분석 결과 double peak가 나타났는데 이는 잡종 개체임을 강력하게 시사하였다.

A natural hybrid between Acheilognathus signifer and A. lanceolatus was collected in their sympatric area, the Gimhwanamdaecheon of Hangang (River), Korea. Morphological characters, mitochondrial cytochrome b gene (cyt b), and recombination-activating gene 1 (RAG-1) were investigated to confirm the natural hybrid origin. As a result of morphological characters, the natural hybrid was appeared to have intermediate characters between two parental species in three characters; the band of dorsal fin, the color patterns of anal fin membrane, and the body color. In analysis of cyt b, it was revealed that the maternal species of the natural hybrid was appeared to be A. signifer due to their 99.9% sequence identity. Also, in analysis of RAG-1, an electropherogram of the hybrid individual displayed double peaks, strongly indicating its hybrid state.

키워드

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