Comparative mitogenomic analyses of three North American stygobiont amphipods of the genus (Crustacea: Amphipoda).

The mitochondrial genomes of three North American stygobiont amphipods , and collected from Caroline County, VA, were sequenced using a shotgun sequencing approach on an Illumina NextSeq500 (Illumina Inc., San Diego, CA). All three mitogenomes displayed 13 protein-coding genes, 22 tRNAs and two rRNAs typical of metazoans. While and displayed identical gene orders similar to the pancrustacean ground pattern, displayed a transposition of the - genes to after . In addition, a short gene, longer gene and large inverted repeat within the Control Region distinguished from and . Overall, it appears that gene order varies considerably among amphipods, and the addition of these mitogenomes to the existing sequenced amphipod mitogenomes will prove useful for characterizing evolutionary relationships among various amphipod taxa, as well as investigations of the evolutionary dynamics of the mitogenome in general.