Characterization of the mitochondrial genome of an ancient amphipod Halice sp. MT-2017 (Pardaliscidae) from 10,908 m in the Mariana Trench.

ABSTRACT: Small amphipods (Halice sp. MT-2017) with body length <1 cm were collected from the Challenger Deep (~10,920 m below sea level). The divergence time of their lineage was approximately 109 Mya, making this group ancient compared to others under study. The mitochondrial genome of Halice sp. shared the usual gene components of metazoans, comprising 13 protein coding genes (PCGs), 22 transfer RNAs (tRNAs), and 2 ribosomal RNAs (rRNAs). The arrangement of these genes, however, differed greatly from that of other amphipods. Of the 15 genes that were rearranged with respect to the pancrustacean gene pattern, 12 genes (2 PCGs, 2 rRNAs, and 8 tRNAs) were both translocated and strand-reversed. In contrast, the mitochondrial genomes in other amphipods never show so many reordered genes, and in most i

SUBMITTER: Li JY 

PROVIDER: S-EPMC6385184 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature