Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Karyotypes of Three Species of Gobiobotia (Pisces: Cyprinidae) in Korea

한국산 꾸구리속, Gobiobotia (Pisces: Cyprinidae) 3종의 핵형

  • Song, Ho-Bok (Division of Life Sciences, College of Natural Sciences, Kangwon National University) ;
  • Park, Gab-Man (Department of Parasitology, Kwandong University College of Medicine)
  • 송호복 (강원대학교 자연과학대학 생명과학부) ;
  • 박갑만 (관동대학교 의과대학 기생충학교실)
  • Received : 2005.07.19
  • Accepted : 2005.09.01
  • Published : 2005.09.30
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Abstract

The karyotypes of three species of Gobiobotia in Korea were investigated: G. macrocephala, G. brevibarba, and G. nakdongensis. In these species, the mitotic chromosomes from 25 groups with two chromosomes each indicated that it is a diploid. The karyotypes of Gobiobotia macrocephala are 2n = 50 (9M+7SM+9ST) with NF = 100, G. brevibarba 2n = 50 (10M+7SM+4ST+4T) with NF = 92, and G. nakdongensis 2n = 50 (5M+9SM+9ST+2T) with NF = 96. Chromosome sizes ranged from 3.3 to $7.5{\mu}m$, 2.7 to $6.3{\mu}m$ and 3.5 to $7.3{\mu}m$ in length, respectively. This is the first report on the chromosomes of G. macrocephala and G. nakdongensis.

한국산 꾸구리속 (Gobiobotia) 어류인 꾸구리 (G. macrocephala), 돌상어 (G. brevibarba) 및 흰수마자 (G. nakdongensis)의 핵형을 조사하였다. 연구 결과, 각각 25쌍의 배수체 염색체가 관찰되었 다. 핵형은 꾸구리가 2n = 50 (9M+7SM+9ST), NF = 100, 염색체의 길이는 $3.3{\sim}7.5{\mu}m$ 크기였으며, 돌상어는 2n = 50 (10M+7SM+4ST+4T), NF = 92, 염색체의 길이는 $2.7{\sim}6.3{\mu}m$의 크기였고, 흰수마자는 2n = 50 (5M+9SM+9ST+2T), NF = 96, 염색체의 길이는 $3.5{\sim}7.3{\mu}m$였다. 본 연구결과 꾸구리와 흰수마자의 핵형은 처음으로 보고되었다.

Keywords

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