Little evidence of adaptation potential to ocean acidification in sea urchins living in "Future Ocean" conditions at a CO₂ vent.

ABSTRACT: Ocean acidification (OA) can be detrimental to calcifying marine organisms, with stunting of invertebrate larval development one of the most consistent responses. Effects are usually measured by short-term, within-generation exposure, an approach that does not consider the potential for adaptation. We examined the genetic response to OA of larvae of the tropical sea urchin Echinometra sp. C. raised on coral reefs that were either influenced by CO₂ vents (pH ~ 7.9, future OA condition) or nonvent control reefs (pH 8.2). We assembled a high quality de novo transcriptome of Echinometra embryos (8 hr) and pluteus larvae (48 hr) and identified 68,056 SNPs. We tested for outlier SNPs and functional enrichment in embryos and larvae raised from adults from the control or v

SUBMITTER: Uthicke S 

PROVIDER: S-EPMC6745858 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature