The complete mitochondrial genome of speckled dace, Rhinichthys osculus

Abstract

In this study, we report the complete mitochondrial genome sequence of speckled dace, Rhinichthys osculus, for the first time. The length of this genome is 16 611 bp, and the mitochondrial genome harbors 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNA), two ribosomal RNA genes (rRNA), and one control region (D-loop), and it has a base composition of A (30.7%), G (16.3%), C (26.5%), and T (26.5%), indicating that the percentage of A + T (57.2%) was higher than that of G + C (42.8%). Most of the genes were located on the H-strand except for the ND6 gene and eight tRNA genes. The phylogenetic analysis showed that the R. osculus mitochondrial genome formed a cluster with the other seven Rhodeus genus genomes. The mitochondrial genome of R. osculus presented here will contribute to a better understanding of the population genetics.

• Mitochondrial genome
• Rhinichthys osculus
• speckled dace

Acknowledgements

The authors would thank anonymous reviewers for providing valuable comments on the manuscript.

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.