Abstract
In order to improve our understanding of the characterization of Cheilinus fasciatus mitogenome and the classification status in Labridae, the full-length mtDNA of C. fasciatus was sequenced, which is 16,872 bp in length with the higher A + T content (53%). It is composed of 37 typical vertebrate mitochondrial genes and a noncoding control region (D-loop). Except for the ND6 gene and eight tRNAs, the rest of the genes are encoded on the heavy strand (H-strand). Subsequent phylogenetic analyses support that C. fasciatus belongs to the genus Cheilinus, which is closely related to two genera (Chlorurus and Scarus). The present study will provide important information for future understanding evolutionary theory, population molecular genetics and biological taxonomy of labrid fish.
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