The complete mitochondrial genome of the Black-spot tuskfish (Choerodon schoenleinii).

Choerodon schoenleinii, a critically endangered ocean fish, is also a highly prized commercial fish. In this study, we present the complete mitochondrial genome of C. schoenleinii based on NGS. The length of C. schoenleinii mitochondrial genome is 16,504 bp which consists of 13 protein-coding genes, two rRNA genes, 22 tRNA genes, and a D-loop. The gene order and the composition of mitochondrial genome in C. schoenleinii were similar to other vertebrates. The nucleotide compositions of the light strand are 28.23% of A, 30.51% of C,24.04% of T, and 17.22% of G. Except for ND6 and eight tRNA genes, the rest of mitochondrial genes are encoded on the heavy strand. The construction of phylogenetic trees based on the entire mitochondrial genome sequence of 11 Perciformes species constructed by the NJ method has suggested that the Choerodon schoenleinii has closer relationship to the Chlorurus sordidus, Scarus ruborviolaceus, Scarus forsteri, and Scarus schlegeli, and that they constitute a sister group.