The complete mitochondrial genome of Engraulis ringens (Engraulidae, Clupeiformes) and phylogenetic studies of Engraulidae

In this study, the complete mitochondrial genome of Engraulis ringens has been determined. The whole sequence is 16,690 bp in length and included the typical structure of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and 2 non-coding regions (control region and L-strand replication origin). The overall base composition includes A 26.65%, T 26.09%, C 28.13%, G 19.13%, with a slightly A + T bias of 52.74%. Moreover, the 13 PCGs encode 3797 amino acids in total. The phylogenetic analysis of E. ringens in the Engraulidae family was constructed based on 12 PCGs encoded by the heavy strand, and the result showed that E. ringens is most closely related to Engraulis japonicus and Engraulis encrasicolus.