The molecular characterization of complete mitochondrial genome of spotted snakehead fish, Channa punctata (Bloch 1793)

Abstract

The complete mitochondrial genome of spotted snakehead fish, Channa punctata (Bloch 1793) was determined by MiSeq platform. The genome was 16,409 bp in length, in which canonical 13 protein-coding genes, 22 tRNAs, 2 rRNAs, and a control region (D-Loop) were encoded. Relatively higher overall A + T contents (53.70%) was identified compared with G + C contents (46.30%). Among 13 protein-coding genes, only one unusual start condon (GTG) was identified in COX1, whereas six genes including COXII, COXIII, NAD2, NAD3, NAD4, and Cytb were ended with the incomplete stop codons (TA-/T–). Based on the currently identified mitogenomes of Channa fish species, C. punctata was most closely related to Channa gachua with 82% sequence identity.