Ocean acidification influences host DNA methylation and phenotypic plasticity in environmentally susceptible corals
| Autor: | Hollie M. Putnam, Ruth D. Gates, Jennifer M. Davidson |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Coral Pocillopora damicornis 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Genetics 14. Life underwater Epigenetics coral Ecology Evolution Behavior and Systematics Phenotypic plasticity Montipora capitata epigenetics biology Ecology fungi Ocean acidification Original Articles biology.organism_classification metabolomics acclimatization 030104 developmental biology 13. Climate action DNA methylation Original Article General Agricultural and Biological Sciences Reprogramming |
| Zdroj: | Evolutionary Applications |
| ISSN: | 1752-4571 |
| DOI: | 10.1111/eva.12408 |
| Popis: | As climate change challenges organismal fitness by creating a phenotype–environment mismatch, phenotypic plasticity generated by epigenetic mechanisms (e.g., DNA methylation) can provide a temporal buffer for genetic adaptation. Epigenetic mechanisms may be crucial for sessile benthic marine organisms, such as reef‐building corals, where ocean acidification (OA) and warming reflect in strong negative responses. We tested the potential for scleractinian corals to exhibit phenotypic plasticity associated with a change in DNA methylation in response to OA. Clonal coral fragments of the environmentally sensitive Pocillopora damicornis and more environmentally robust Montipora capitata were exposed to fluctuating ambient pH (7.9–7.65) and low pH (7.6–7.35) conditions in common garden tanks for ~6 weeks. M. capitata responded weakly, or acclimated more quickly, to OA, with no difference in calcification, minimal separation of metabolomic profiles, and no change in DNA methylation between treatments. Conversely, P. damicornis exhibited diminished calcification at low pH, stronger separation in metabolomic profiles, and responsiveness of DNA methylation to treatment. Our data suggest corals differ in their temporal dynamics and sensitivity for environmentally triggered real‐time epigenetic reprogramming. The generation of potentially heritable plasticity via environmental induction of DNA methylation provides an avenue for assisted evolution applications in corals under rapid climate change. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text