Molecular basis of parental contributions to the behavioural tolerance of elevated pCO2 in a coral reef fish
| Autor: | Alison A. Monroe, Celia Schunter, Megan J. Welch, Philip L. Munday, Timothy Ravasi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
General Immunology and Microbiology
Coral Reefs Fishes Genetics and Genomics ocean acidification General Medicine phenotypic variation Carbon Dioxide Hydrogen-Ion Concentration General Biochemistry Genetics and Molecular Biology Perciformes climate change Animals Seawater genetic variance General Agricultural and Biological Sciences transcriptome Research Articles parental effects General Environmental Science |
| Zdroj: | Proceedings of the Royal Society B: Biological Sciences |
| ISSN: | 1471-2954 0962-8452 |
| Popis: | Knowledge of adaptive potential is crucial to predicting the impacts of ocean acidification (OA) on marine organisms. In the spiny damselfish,Acanthochromis polyacanthus, individual variation in behavioural tolerance to elevated pCO2has been observed and is associated with offspring gene expression patterns in the brain. However, the maternal and paternal contributions of this variation are unknown. To investigate parental influence of behavioural pCO2tolerance, we crossed pCO2-tolerant fathers with pCO2-sensitive mothers and vice versa, reared their offspring at control and elevated pCO2levels, and compared the juveniles' brain transcriptional programme. We identified a large influence of parental phenotype on expression patterns of offspring, irrespective of environmental conditions. Circadian rhythm genes, associated with a tolerant parental phenotype, were uniquely expressed in tolerant mother offspring, while tolerant fathers had a greater role in expression of genes associated with histone binding. Expression changes in genes associated with neural plasticity were identified in both offspring types: the maternal line had a greater effect on genes related to neuron growth while paternal influence impacted the expression of synaptic development genes. Our results confirm cellular mechanisms involved in responses to varying lengths of OA exposure, while highlighting the parental phenotype's influence on offspring molecular phenotype. |
| Databáze: | OpenAIRE |
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