Chromosome-level genome assembly of hadal snailfish reveals mechanisms of deep-sea adaptation in vertebrates.

ABSTRACT: As the deepest vertebrate in the ocean, the hadal snailfish (Pseudoliparis swirei), which lives at a depth of 6,000-8,000 m, is a representative case for studying adaptation to extreme environments. Despite some preliminary studies on this species in recent years, including their loss of pigmentation, visual and skeletal calcification genes, and the role of trimethylamine N-oxide in adaptation to high-hydrostatic pressure, it is still unknown how they evolved and why they are among the few vertebrate species that have successfully adapted to the deep-sea environment. Using genomic data from different trenches, we found that the hadal snailfish may have entered and fully adapted to such extreme environments only in the last few million years. Meanwhile, phylogenetic relationships sho

SUBMITTER: Xu W 

PROVIDER: S-EPMC10746142 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature