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Abstract
The complete mitochondrial genome of a China endemic fish Discogobio tetrabarbatus is a circular molecular of 16,596 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 936 bp in length and 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 Discogobio tetrabarbatus 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 Chenguang Project (201150431108) of Wuhan City, MWR world advanced water science and technology program (948 Program) – fish behavior measurement and analysis system.