Korean Journal of Ichthyology (한국어류학회지)
- Volume 3 Issue 1
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- Pages.36-41
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- 1991
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- 1225-8598(pISSN)
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- 2288-3371(eISSN)
The Karyotypic Analysis of Niwaella multifasciata Wakiya et Mori(Cobitidae), An Endemic Species in Korea
한국(韓國) 특산종(特産種) 수수미꾸리, Niwaella multifasciata Wakiya et Mori(Cobitidae)의 핵형분석(核型分析)
- Nam, Myung-Mo (Department of Biology, Teachar's College, Kyungpook National University) ;
- Yang, Hong-Jun (Department of Biology, Teachar's College, Kyungpook National University) ;
- Chae, Byung-Soo (Department of Biology, Teachar's College, Kyungpook National University)
- Published : 1991.06.30
Abstract
The karyotype of the Niwaella multifasciata, endemic species to the Nakdong River in Korea, is reported for the first time. The sample species, Niwaella multifasciata collected from the Milyang River and the Nam River which are tributaries of the Nakdong River, has a diploid complement of 50 chromosomes composed of 10 metacentric, 28 submetacentric, 12 subtelocentric chromosomes, and 88 arm numbers. The arm number of Niwaella multifasciata was larger than any other species of Cobitidae. Sexual dimophism and intraspecific polymophism of the chromosomes were not observed in this study.
한국(韓國) 특산종(特産種)으로 낙동강(洛東江) 수계에서만 서식하는 Niwaella multifasciata(수수미꾸리)를 밀양강(密陽江)과 남강(南江)에서 채집하여 핵형(核型)을 분석(分析)한 결과 2n=50, 10m+28sm+12st, AN=88로 나타났다. 이 종은 기름종개과(科)의 다른 종들과는 달리 양완(兩腕) 양색체(梁色體)(biarm chromosome)가 단완(單腕) 염색체(染色體)(monoarm chromosome)보다 많았으며 완수(腕數)(arm number)가 많았다. 또한 핵형에 있어서 체측(體側) 반문(斑紋)의 형태(形態)와 관련한 차이(差異)나 조사된 두 집단간(集團間)의 차이(差異) 및 성적(性的) 현상(現象)은 나타나지 않았다.
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