The complete mitochondrial genomes of two talitrid amphipods, Platorchestia japonica and P. parapacifica (Crustacea, Amphipoda)

In this paper, we determined the complete mitochondrial genome (mitogenome) sequences of two talitrid amphipods, Platorchestia japonica and P. parapacifica. The complete mitogenomes of P. japonica and P. parapacifica were 14,780 and 14,787 bp in length, respectively, with the typical 13 protein coding genes (PCGs), 22 transfer RNAs (tRNAs), two ribosomal RNAs (rRNAs) and a control region (CR). In the gene order analysis, two PCGs (nad3 and nad6) were rearranged in comparison to the typical pan-crustacean ground pattern. A maximum-likelihood tree, constructed based on 31 eumalacostracan mitogenomes, confirmed that P. japonica and P. parapacifica (Talitridae) were closely related to Parhyale hawaiensis (Hyalidae), and supports the monophyly of the superfamily Talitroidea.