The complete mitochondrial genome of Hepsetus odoe (Hepsetidae, characoidei) and phylogenetic studies of characoidei

Here, we report the complete mitochondrial genome sequence of Hepsetus odoe. The genome is found to be 16,802 bp in length and has a base composition of A (28.67%), G (15.86%), C (31.10%), and T (24.37%). Similar to other Hepsetus species, it contains a typically conserved structure including 13 protein-coding genes, two rRNA genes, one control region (D-loop), and 22 tRNA genes. The proportion of coding sequences with a total length of 11,435 bp is 68.06%, which encodes 3816 amino acids. All protein-coding genes started with Met, ND1, CO2, ATP8, ATP6, CO3, ND4L, ND5, ND6 and CytB ended by TAA as a stop codon, ND2, ND3 ended by TAG as a stop codon, CO1, ND4 ended by a single AGG. The lengths of 12S ribosomal RNA and 16S ribosomal RNA are 955 bp and 1684 bp, respectively. The length of control region is 1142 bp, ranging from 15,660 bp to 16,802 bp. The complete mitochondrial genome sequence provided here would be helpful in understanding the evolution of ratite and conservation genetics of Hepsetus odoe in future.