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Dryad

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

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Apr 19, 2021 version files 20.26 KB

Abstract

The complete mitogenome can provide valuable genetic information to reconstruct the relationship network between species. In this study, we sequenced a freshwater loach, Homatula laxiclathra (Teleostei: Nemacheilidae), which is only distributed in the northern region in Qinling Mountains, China. The size of H. laxiclathra mitogenome is 16,570 bp, contains 37 typical mitochondrial genes including 13 protein-coding genes, 22 transfer RNAs, two ribosomal RNAs, and a control region (D-loop) with the total A+T content of 55.8%, which is similar to other Nemacheilidae sequences published in GenBank. Furthermore, the mito-phylogenomic analysis of 46 Nemacheilidae species arranged H. laxiclathra in a robust monophyletic Homatula cluster with other Homatula species. The results may contribute to understand a true phylogeny with large-scale taxonomic samplings and grasp the evolution of fish mitogenomes.