Brennan, Reid S; deMayo, James A; Dam, Hans G; Finiguerra, Michael B; Baumann, Hannes; Pespeni, Melissa H (2022): Seawater carbonate chemistry and allele frequencygene, expression plasticity, genetic diversity and egg production rate of marine copepod [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.946063
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Abstract:
Adaptive evolution and phenotypic plasticity will fuel resilience in the geologically unprecedented warming and acidification of the earth's oceans, however, we have much to learn about the interactions and costs of these mechanisms of resilience. Here, using 20 generations of experimental evolution followed by three generations of reciprocal transplants, we investigated the relationship between adaptation and plasticity in the marine copepod, Acartia tonsa, in future global change conditions (high temperature and high CO2). We found parallel adaptation to global change conditions in genes related to stress response, gene expression regulation, actin regulation, developmental processes, and energy production. However, reciprocal transplantation showed that adaptation resulted in a loss of transcriptional plasticity, reduced fecundity, and reduced population growth when global change-adapted animals were returned to ambient conditions or reared in low food conditions. However, after three successive transplant generations, global change-adapted animals were able to match the ambient-adaptive transcriptional profile. Concurrent changes in allele frequencies and erosion of nucleotide diversity suggest that this recovery occurred via adaptation back to ancestral conditions. These results demonstrate that while plasticity facilitated initial survival in global change conditions, it eroded after 20 generations as populations adapted, limiting resilience to new stressors and previously benign environments.
Keyword(s):
Acartia tonsa; Animalia; Arthropoda; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Development; Gene expression (incl. proteomics); Laboratory experiment; Mortality/Survival; North Atlantic; Other; Pelagos; Reproduction; Single species; Temperate; Temperature; Zooplankton
Supplement to:
Brennan, Reid S; deMayo, James A; Dam, Hans G; Finiguerra, Michael B; Baumann, Hannes; Pespeni, Melissa H (2022): Loss of transcriptional plasticity but sustained adaptive capacity after adaptation to global change conditions in a marine copepod. Nature Communications, 13(1), https://doi.org/10.1038/s41467-022-28742-6
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Coverage:
Latitude: 41.320725 * Longitude: -72.001643
Date/Time Start: 2016-06-01T00:00:00 * Date/Time End: 2016-06-30T00:00:00
Event(s):
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2022-07-07.
AM= ambient pH, OWA=future warming and acidification conditions
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
30685 data points
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