Transcriptomic analysis of candidate osmoregulatory genes in the eastern oyster Crassostrea virginica.

ABSTRACT:

Background

The eastern oyster, Crassostrea virginica, is a euryhaline species that can thrive across a wide range of salinities (5-35). As with all estuarine species, individual oysters must be able to regulate their osmotic balance in response to constant temporal variation in salinity. At the population level, recurrent viability selection may be an additional mechanism shaping adaptive osmoregulatory phenotypes at the margins of oyster salinity tolerance. To identify candidate genes for osmoregulation, we sequenced, assembled, and annotated the transcriptome of wild juvenile eastern oysters from 'high' and 'low' salinity regimes. Annotations and candidates were mostly based on the Pacific oyster (Crassostrea gigas) genome sequence so osmoregulatory relevance in C. virginica was

SUBMITTER: Eierman LE 

PROVIDER: S-EPMC4101419 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature