The complete mitochondrial genome of Thryssa vitrirostris (Engraulinae, Engranlidae, Clupeoidei) and phylogenetic studies of Clupeoidei

Abstract

The complete mitochondrial genome of T. vitrirostris was 16,975bp in length, and it contained a typically conserved structure including 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, and 1 control region (D-loop). Except ND6 and 8 tRNA genes, all other mitochondrial genes are encoded on the heavy strand, the gene arrangement was consistent with other Engraulidae mitochondrial genomes. The overall base composition is A 30.56%, C 28.40%, G 16.01%, T 25.03%. Additionally, phylogenetic tree was constructed based on 13 protein-coding genes sequences of 21 Clupeoidei species, and Chirocentrus dorab (belongs to Clupeiformes) as outgroup, the result showed that T. vitrirostris is most closely related to T. dussumieri. These results would be useful for the investigation of phylogenetic relationship, taxonomic classification, and phylogeography of the Clupeoidei.