Data from: Evolutionary change during experimental ocean acidification ...

• Main Authors: Pespeni, Melissa H., Sanford, Eric, Hill, Tessa M., Hosfelt, Jessica D., Jaris, Hannah K., LaVigne, Michele, Gaylord, Brian, Lenz, Elizabeth A., Russell, Ann D., Young, Megan K., Palumbi, Stephen R.
• Format: Dataset
• Language: English
• Published: Dryad 2013
• Subjects: ecological genomics; RNA-sequencing; Ocean acidification
• Online Access: https://dx.doi.org/10.5061/dryad.6j51n; https://datadryad.org/stash/dataset/doi:10.5061/dryad.6j51n

Rising atmospheric carbon dioxide (CO2) conditions are driving unprecedented changes in seawater chemistry, resulting in reduced pH and carbonate ion concentrations in the Earth’s oceans. This ocean acidification has negative but variable impacts on individual performance in many marine species. However, little is known about the adaptive capacity of species to respond to an acidified ocean, and as a result, predictions regarding future ecosystem responses remain incomplete. Here we demonstrate that ocean acidification generates striking patterns of genome-wide selection in purple sea urchins (Strongylocentrotus purpuratus) cultured under different CO2 levels. We examined genetic change at 19,493 loci in larvae from seven adult populations cultured under realistic future CO2 levels. Although larval development and morphology showed little response to elevated CO2, we found substantial allelic change in 40 functional classes of proteins involving hundreds of loci. Pronounced genetic changes, including excess ... : Pespeni_LarvalSelection_AlleleFrequencyDataThis data file is a text tab delimited file with a single row for every SNP identified in this study (19,516). There are allele frequency data for each of 4 treatment x day conditions, for each of 7 populations. This data file also contains annotation and read depth information. See README file for more details. ...