Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
권호 표지

Occurrence of a Natural Intergeneric Hybrid, Rhodeus uyekii${\times}$Acheilognathus signifer (Pisces : Cyprinidae) from Jojongcheon Bukhan River

각시붕어 Rhodeus uyekii와 묵납자루 Acheilognathus signifer (Pisces : Cyprinidae)의 속간 자연 잡종의 출현

  • Kim, Chi-Hong (Central Inland Fisheries Research Institute, NFRDI) ;
  • Lee, Wan-Ok (Central Inland Fisheries Research Institute, NFRDI) ;
  • Kang, Yong-Jin (Central Inland Fisheries Research Institute, NFRDI) ;
  • Baek, Jea-Min (Central Inland Fisheries Research Institute, NFRDI)
  • 김치홍 (국립수산과학원 중앙내수면연구소) ;
  • 이완옥 (국립수산과학원 중앙내수면연구소) ;
  • 강용진 (국립수산과학원 중앙내수면연구소) ;
  • 백재민 (국립수산과학원 중앙내수면연구소)
  • Received : 2010.09.13
  • Accepted : 2010.12.12
  • Published : 2010.12.31
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Abstract

A intergeneric hybrid between Rhodeus uyekii and Acheilognathus signifer was collected in the Jojongcheon Bukhan River. The hybrid showed intermediate characteristics of two parental types in some key characters, such as color pattern of body, pigmentation of dorsal, anal, and caudal fins, and body spot and stripe. In addition, the hybrid had a fairly large number of lateral line scales, while it lacked a barbel, which is known as a key intergeneric character. The probable occurrence of a natural hybrid is supported by a viable $F_1$ hybrid produced with the parental species.

납자루아과 담수어류인 각시붕어 Rhodeus uyekii와 묵납자루 Acheilognathus signifer의 속간 잡종으로 의심되는 개체를 북한강 지류인 조종천에서 채집하였다. 외부 형태 형질, 체색 반문, 혼인색 등을 비교한 결과 체색, 등지느러미, 뒷지느러미, 꼬리지느러미의 반문과 색깔, 체표의 반점과 종대 등이 두 종간의 중간형질을 보여 주고 있었다. 본 개체가 두 속간의 분류 형질인 수염은 없고 유공 측선 비늘수가 많은 점 등은 두 종간 자연 잡종으로 사료되었다. 두 종간 인공 교잡종의 생산은 자연 잡종의 출현 가능성을 시사하였다.

Keywords

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