Complete mitochondrial genome and phylogenetic relationship analyses of Amphioctopus aegina (Gray, 1849) (Cephalopoda: Octopodidae).

In this paper, the circular mitochondrial genome of Amphioctopus aegina (Cephalopoda: Octopodidae) was sequenced. The whole mitogenome of A. aegina was 15 545 base pairs (bp) in length with a base composition of 42.53% A, 33.26% T, 16.70% C, and 7.51% G. The complete mitogenome contained 13 protein-coding genes (PCGs), 2 ribosomal RNA genes, 22 transfer RNA genes, and a major non-coding region. The gene arrangements of A. aegina showed remarkable similarity to other Octopodidae species reported. The phylogenetic relationships were reconstructed with the concatenated sequences of the 13 PCGs of the mitochondrial genome, and illustrated that A. aegina had the closest genetic relatives to A. fangsiao.