Abstract
The complete mitochondrial genome was sequenced from the anadromous river pufferfish, Takifugu obscurus. The genome sequence was 16,446 bp in size, and the gene order and contents were identical with those of congeneric species in the genus Takifugu. Of 13 protein-coding genes (PGCs), 2 genes (CO2 and ND4) had incomplete stop codons as shown in T. obscurus. Furthermore, the stop codon of CO1 and ND6 genes was AGG. The base composition of T. obscurus mitogenome showed anti-G bias (13.2% and 6.4%) on the second and third positions of protein-coding genes (PCGs), respectively.
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