The complete mitochondrial genome of blue-lined octopus Hapalochlaena fasciata (Hoyle, 1886) (Octopodiformes; Octopoda; Octopodidae)

Abstract

The complete mitochondrial genome of the highly venomous blue-lined octopus, Hapalochlaena fasciata (Hoyle, 1886), was analyzed by the primer walking method. Its mitogenome was 15,479 bp in total length, comprising 13 protein-coding genes, 2 ribosomal RNA genes, and 23 transfer RNA genes. In the phylogenetic tree, the gene content and order were congruent with those of typical octopodiform species. The mitogenomic sequence presented could be very useful as the first record of the complete mitogenome for the genus Hapalochlaena.

Tetrodotoxin and the Geographic Distribution of the Blue-Lined Octopus Hapalochlaena fasciata on the Korean Coast

“…H. fasciata was subsequently added as a new species on the National List of Species of Korea [15]. Recently, an individual collected from the coast of Jeju Island in Korea in 2015 was confirmed to be H. fasciata on the basis of detailed morphologic observations and molecular analysis [16], and the complete mitochondrial genome of this species collected from the southern coast of Korea in 2019 was identified [17]. Kim et al [3] reported the spread of the octopus along the Japanese coast side in the East/Japan Sea due to sea warming and suggested its presence along the Korean coast, although there has been no evidence of this except at Jeju Island, located off the southern tip of the Korean Peninsula.…”