Genome of the estuarine oyster provides insights into climate impact and adaptive plasticity.

ABSTRACT: Understanding the roles of genetic divergence and phenotypic plasticity in adaptation is central to evolutionary biology and important for assessing adaptive potential of species under climate change. Analysis of a chromosome-level assembly and resequencing of individuals across wide latitude distribution in the estuarine oyster (Crassostrea ariakensis) revealed unexpectedly low genomic diversity and population structures shaped by historical glaciation, geological events and oceanographic forces. Strong selection signals were detected in genes responding to temperature and salinity stress, especially of the expanded solute carrier families, highlighting the importance of gene expansion in environmental adaptation. Genes exhibiting high plasticity showed strong selection in upstream regula

SUBMITTER: Li A 

PROVIDER: S-EPMC8590024 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature