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Abstract
The complete mitochondrial genome of an endemic fish Ptychidio jordani is a circular molecular of 16,602 bp in size, containing 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA) genes, 2 ribosomal RNA (rRNA) genes and a non-coding control region. Most of the genes are encoded on the heavy strand, expect for ND6 and eight tRNAs. The control region is 940 bp in length and is located between the tRNAPro and tRNAPhe genes. Of 13 PCGs, 7 genes (ND2, COII, ATPase 6, COIII, ND3, ND4, Cytb) had an incomplete stop codon. The complete mtDNA genome sequence obtained in this study would be useful for studying genetic diversity and phylogenetics in Ptychidio jordani and related taxa in future.
Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper. The research was funded and supported by grants from Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem (No. 2013005) and the projects of Monographic Study on Hydroecology of Retrospective Environmental Impact Assessment of Comprehensive Utilization Planning of Hongshui River.