The complete mitochondrial genome of Pseudorhombus dupliocellatus (Pleuronectiformes: Paralichthyidae)

AbstractThe Pseudorhombus dupliocellatus belongs to family Paralichthyidae of Pleuronectiformes. In this study, the complete mitochondrial genome of P. dupliocellatus is determined and described. The mitogenome is 16 621 bp in length and consists of 13 protein-coding genes, 22 tRNAs, 2 rRNAs, a control region, and a L-strand replication origin. The arrangement of the mitogenome is identical to that of the typical teleost. The overall base composition is 26.9%, 25.3%, 31.0%, and 16.8% for A, T, C, and G, respectively, with a slight bias on A+T content (52.2%). The phylogenetic tree of 13 species all in Pleuronectiformes demonstrated that P. dupliocellatus, as well as the other Paralichthyidae fishes containing Paralichthys olivaceus and Pseudorhombus cinnamoneus, clustered in a clade and had a closer relationship with Pleuronectidae species than Bothidae ones. This study is expected to contributing to the systematic evolution of Paralichthyidae and further Pleuronectiformes.KeywordsMitochondrial genomePseudorhombus dupliocellatusphylogenetic relationship AcknowledgementsThe authors are grateful to Da-hui Yu for sample collection.Declaration of interestThe authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper. This study was supported by the National Natural Science Foundation of China (31471979).