Molecular Mechanisms of the Convergent Adaptation of Bathypelagic and Abyssopelagic Fishes.

ABSTRACT: Harsh environments provide opportunities to study how different species adapt, at the molecular level, to similar environmental stressors. High hydrostatic pressure, low temperature, and absence of sunlight in the deep-sea environment are challenging conditions for gene expression, cell morphology and vision. Adaptation of fish to this environment appears independently in at least 22 orders of fish, but it remains uncertain whether these adaptations represent convergent evolution. In this study, we performed comparative genomic analysis of 80 fish species to determine genetic evidences for adaptations to the deep-sea environment. The 80 fishes were divided into six groups according to their order. Positive selection and convergent evolutionary analysis were performed and functional enrichm

SUBMITTER: Bo J 

PROVIDER: S-EPMC9348623 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature