The complete mitochondrial genome of Glyptothorax zainaensis (Siluriformes, Sisoridae, Glyptothorax): genome characterization and phylogenetic analysis

Glyptothorax zainaensis, a small-sized benthic fish which mainly distributes in the Nujiang River, Lancangjiang river and their tributaries in China. In the present study, the complete mitochondrial genome of G. zainaensis was sequenced to be 16 537 bp in length, including 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, a control region and the origin of the light strand replication. The overall nucleotide composition was 31.17% A, 25.95% T, 27.48% C and 15.40% G, with an A+T bias of 57.13%. The gene composition and the structural arrangement of the G. zainaensis complete mitochondrial DNA were identical to most of the other vertebrates. This will provide a useful tool for understanding the genetic diversity, population structure and conservation status of G. zainaensis in the future.