Characterization of the complete mitochondrial genome sequence of Homatula potanini (Cypriniformes, Nemacheilidae, Nemachilinae)

Abstract

Homatula potanini is an endemic and one of ornamental fishes in the upper stream of the Yangtze River and its tributaries. However, wild populations of H. potanini declined sharply due to anthropological activity in the Jinsha River during the past decades. In present study, the complete mitochondrial DNA genome sequence of H. potanini was first determined by DNA sequencing based on the PCR fragments. The complete mitochondrial genome sequence is a circular molecule of 16,569 bp in size. It consists of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region (D-loop). The gene nucleotide composition of H. potanini is 30.1% A, 26.9% C, 16.7% G, and 26.3% T, with a relatively high A + T content (56.4%). The results could provide useful data for studies on genetic structure and rational resource conservation in H. potanini.

• Genetic structure
• Homatula potanini
• mitogenome
• resource conservation

Acknowledgements

We are grateful to H.Y. Tang for his help in fish identification and sample collection.

Declaration of interest

The work was supported by National Natural Science Foundation (Grant No. 51109166, 51109145) and China Three Gorges Corporation Scientific Project (0799527 and 07011032). The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.