Molecular Phylogeny and Taxonomic Review of the Family Liparidae (Scorpaenoidei) from Korea

한국산 꼼치과 어류의 분자계통 및 분류학적 재검토

  • Song, Young Sun (Department of Marine Biology, Pukyong National University) ;
  • Ban, Tae-woo (Fishery Resources Ecology Research Institute) ;
  • Kim, Jin-Koo (Department of Marine Biology, Pukyong National University)
  • Received : 2015.05.13
  • Accepted : 2015.09.20
  • Published : 2015.09.30

Abstract

The snailfishes (Scorpaenoidei: Liparidae) is a large group requiring taxonomic reviews because of a potential taxonomic confusion due to its great similarity in external morphology between species and a variation of its body color with size. Molecular phylogeny and taxonomic review were conducted for 10 species in 3 genera reported around the Korean waters, which facilitate understanding interrelationship within its family, and further management of fisheries resources. Molecular phylogeny using mitochondrial COI (mtCOI) and nuclear RAG2 (nRAG2) sequences indicates that the reciprocal monophyly of the three genera (Careproctus, Crystallichthys, and Liparis) were supported except Crystallichthys matsushimae, being closely related to Careproctus notosaikaiensis in only mtDNA COI topology. Liparis ingens Gilbert and Burke (1912) was reported as a distinct species differing from L. ochotensis. However, in the present study, comparing L. ingens from Korea with L. ochotensis from Japan and Russia, the two species were well corresponded in their morphology and molecule, therefore, we suggest L. ingens to be treated as a junior synonym of L. ochotensis.

쏨뱅이아목 (Scorpaenoidei) 어류에 속하는 꼼치과 (Liparidae) 어류는 형태적으로 유사하고 오동정 가능성이 크며 체색과 몸의 상대적인 크기 변이가 심하여 분류학적으로도 상당히 혼란스러운 분류군이다. 따라서, 본 연구는 꼼치과 어류의 자원변동을 이해하고 자원관리를 위해 국내 보고된 3속 10종을 대상으로 분자계통 및 분류학적 재검토를 수행하였다. 미토콘드리아DNA COI 영역과 핵DNA RAG2 영역의 염기서열을 이용한 분자계통 분석 결과, 물미거지가 분홍꼼치와 가깝게 유집되는 mtCOI 계통 결과를 제외하면 3속 (분홍꼼치속, 물미거지속, 꼼치속)이 대등한 단계통성을 나타내었다. Gilbert and Burke (1912)는 L. ochotensis와 구분되는 한국산 미거지를 L. ingens로 신종 보고하였으나, 본 연구에서 한국산 미거지는 일본산 및 러시아산 L. ochotensis와 형태 및 분자에서 잘 일치하였으므로 한국산 미거지의 학명을 L. ingens에서 L. ochotensis로 변경한다.

Keywords

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