Complete mitochondrial genome of ocellated blenny, Opisthocentrus ocellatus (Tilesius, 1811) (Zoarcales: Opisthocentidae)

Abstract

The complete mitochondrial genome (mitogenome) of Opisthocentrus ocellatus (Zoarcales: Opisthocentridae) was sequenced for the first time. The whole genome was 16,525 bp in length and contained 13 protein-coding genes, 22 transfer RNA genes (tRNA), two ribosome (rRNA) genes, and two non-coding regions. The overall base composition of the mitochondrial DNA (mtDNA) was 26.2% for A, 28.3% for T, 27.4% for C, and 18.1% for G. Six protein-coding genes include incomplete stop codons while others have standard ones, and start codons are typically ATG, GTG, ATA, or ATC. The phylogenetic analysis, which based on the mitogenomes of O. ocellatus and other 14 fish species from Zoarcales infraorder indicated that O. ocellatus is more closely related to the family Pholidae than to Stichaeidae.

Keywords

• mitogenome
• phylogenetic analysis