Hemisalanx brachyrostralis belonging to the family Salangidae is endemic to the Yangtze River. This species has been listed on the Chinese Red List because of the serious decrease in its resources. In this study, we analyzed the complete mtDNA (16588 bp long) of H. brachyrostralis. Overall base composition of the genome is 25.1% A, 25.4% T, 18.7% G, and 30.8% C. The complete mtDNA contains 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes (12S rRNA and 16S rRNA), and 1 control region. Apart from the ND6 gene and nine tRNA genes encoded on the L-strand, most of the genes are on the H-strand. H. brachyrostralis has the lowest genetic diversity among the Salangid species, so further studies on conservation genetics must be conducted.
Animals Base Composition