Complete mitochondrial genome of Lepturichthys fimbriata and phylogenetic analysis of family Balitoridae

The whole mitochondrial genome sequence of Lepturichthys fimbriata was amplified by primer walking sequence method, and then the whole genome genetic map of mitochondrion was obtained and mapped. The mitochondrial genome of L. fimbriata is a double-strand ring-like molecule with a total length of 16,567bp. It contains 2 rRNA genes (12SrRNA and 16SrRNA), 13 protein-coding genes (COI, COII, COIII, ATP6, ATP8, ND1, ND2, ND3, ND4, ND4L, ND5, ND6, Cytb), 22 tRNA coding genes, and one non-coding control region (D-loop control region). The overall nucleotide composition was A: 30.4%, T: 24.4%, C: 28.7%, and G: 16.5%, exhibiting an A + T bias of 54.8%. Phylogeny showed the phylogenetic relationships of different genera in the family Balitoridae and found the genus Lepturichthys is clustered with the genus Jinshaia, which suggested the intergeneric hybridization has likely occurred in both lineages.