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Abstract
The complete mitochondrial genome of Chirolophis japonicus was sequenced for the first time in this study. It is a closed-circular molecule of 16 521 bp in length and contains 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, an origin of light strand replication (OL), and a control region (CR). The overall base composition of the heavy-strand is 25.5% A, 28.6% T, 18.3% G, and 27.6% C, and the lengths of 2 rRNA genes are 946 and 1692 bp, respectively. Maximum likelihood tree based on all the amino acid sequences of 13 mitochondrial PCGs was constructed, in which C. japonicus is close to three species of infraorder Zoarcales. These results are expected to provide useful molecular data for species identification and further phylogenetic studies of genus Chirolophis.
Declaration of interest
The work was supported by Liaoning Scientific Research Program of Ocean and Fisheries Department (No. 201519). The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.