Characterization of the complete mitochondrial genome of Chinese Konosirus punctatus (Clupeiformes, Clupeidae) and phylogenetic studies of Clupeiformes

Abstract

The Dotted Gizzard Shad (Konosirus punctatus) was one of the most important commercial fish species in China, Japan and Korea. In this study, the complete mitochondrial genome of K. punctatus was presented. The full length of the mitochondrial genome was 16,705 bp, including 13 protein-coding genes (PCGs), two ribosomal RNAs, 22 transfer RNA genes, one non-coding control region (CR) and one origin of replication on the light-strand. The total nucleotide composition of mitochondrial DNA was 25.79%A, 25.09%T, 29.05%C, 20.08%G, and AT was 50.88%. The mitochondrial genome provides an important resource for solving taxonomic problems and studying molecular evolution.

Characterization of the complete mitogenome of Gymnocypris dobula (Günther, 1868) (Cypriniformes: Cyprinidae)

“…The nucleotide composition of the whole mitogenome was A + T biased (55.67%), and the A + T content of PCGs, tRNAs, and rRNAs was 56.12%, 54.55%, and 53.60%, respectively. As with other vertebrate mitogenomes, most of these PCGs started by ATG initiation codon, except for COI by GTG (Zhang et al 2020a ). As for the stop codon, seven PCGs performed the routine termination codon (TAA or TAG), whereas five other PCGs (ND2, COII, ND3, ND4, and Cyt b) stoped with an incomplete stop codon T and one PCG (COIII) stoped with an incomplete stop codon TA.…”