PUBLICATION
Evolution of warming tolerance alters physiology and life history traits in zebrafish
- Authors
- Andreassen, A.H., Clements, J.C., Morgan, R., Spatafora, D., Metz, M., Åsheim, E.R., Pélabon, C., Jutfelt, F.
- ID
- ZDB-PUB-250617-6
- Date
- 2025
- Source
- Nature climate change 15: 665672665-672 (Journal)
- Registered Authors
- Keywords
- Behavioural ecology, Ecophysiology, Evolutionary ecology
- MeSH Terms
- none
- PubMed
- 40520441 Full text @ Nat Clim Chang
Citation
Andreassen, A.H., Clements, J.C., Morgan, R., Spatafora, D., Metz, M., Åsheim, E.R., Pélabon, C., Jutfelt, F. (2025) Evolution of warming tolerance alters physiology and life history traits in zebrafish. Nature climate change. 15:665672665-672.
Abstract
Evolution of warming tolerance may help species resist the impacts of climate change but can also lead to negative fitness outcomes. Identifying correlated responses to warming tolerance evolution could identify such negative consequences and help uncover the underlying mechanisms. By assessing the correlated responses of life history and physiological traits to seven generations of artificial selection to increase or decrease the acute upper thermal tolerance limit (CTmax) in zebrafish (Danio rerio), we show that warming-adapted lines have improved cooling tolerance. Furthermore, the absence of difference between selected lines in aerobic metabolic scope, brain heat shock protein levels, fecundity, growth or swimming speed contradicts several hypotheses concerning the mechanisms controlling acute warming tolerance. These results suggest that selection due to acute heating events does not target variation in metabolic rates but can benefit tolerance to cold, making individuals more resilient to extreme temperature events.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping