한국산 농어목 망둑어아목 어류의 미토콘드리아 cytochrome b 유전자 염기서열 분석에 의한 분자계통

Abstract

To get basic data revealing the molecular phylogeny in Korean freshwater fishes, we analyzed mitochondrial cytochrome b (cyt b) genes from 12 species within 4 families (Centropomidae, Odontobutidae, Gobiidae, Belontiidae). Of 405 bp of cyt b gene, nucleotide substitutions of T/A occurred between species. Especially, interspecific variation in T/A between Odontobutis interrupta and Gymnogobius petschiliensis appeared on a single nucleotide at 124 position but 17 substitutions were observed between Rhinogobius sp. CO and R. sp. CO. We clustered the tested fishes into 5 groups through a molecular phylogenetic analysis in terms of the NJ method, indicating that each cluster represented each genus. However, Gymnogobius urotaenia had diverged independently, resulting in 2 species (G. opperiens, G. petschiliensis) clustered with another species in other genus. with another species in other genus.