Gene Rearrangements in the Mitochondrial Genome of Gonatopsis borealis and Onychoteuthis compacta Reveal Their Phylogenetic Implications for Oegopsida

The complete mitochondrial genome provides crucial information for comprehending gene rearrangement, molecular evolution, and phylogenetic analysis. Here, we have determined the complete mitogenome sequence of Gonatopsis borealis and Onychoteuthis compacta for the first time. Their genome sizes were 20,148 bp and 20,491 bp, respectively, including 18 protein-coding genes, COI-COIII, ATP6, and ATP8 are duplicated, 23 transfer RNA genes, and 2 ribosomal RNA (rRNA) genes (12S and 16S rRNA). Specifically, the overall A+T content is 70.69