The mitogenome of freshwater loach Homatula laxiclathra (Teleostei: Nemacheilidae) with phylogenetic analysis of Nemacheilidae

摘要

The complete mitogenome can provide valuable genetic information to reconstruct relationships between species. In this study, we sequenced a stone loach, (Teleostei: Nemacheilidae), which is found in the northern region of the Qinling Mountains in China. The size of the mitogenome is 16,570 bp, which contains 37 typical mitochondrial genes including 13 protein‐coding genes, 22 transfer RNAs, two ribosomal RNAs, and a control region (D‐loop) with a total AT content of 55.8%. This is similar to other Nemacheilidae sequences published in GenBank. Furthermore, a mito‐phylogenomic analysis of 46 Nemacheilidae species places in a robust monophyletic cluster with other species. Our results contribute toward a better understanding of a true phylogeny of these species based on large‐scale taxonomic samplings as well as to help grasp the evolution of fish mitogenomes.