PUBLICATION

Reduced physiological plasticity in a fish adapted to stable temperatures

Authors
Morgan, R., Andreassen, A.H., Åsheim, E.R., Finnøen, M.H., Dresler, G., Brembu, T., Loh, A., Miest, J.J., Jutfelt, F.
ID
ZDB-PUB-220527-14
Date
2022
Source
Proceedings of the National Academy of Sciences of the United States of America   119: e2201919119 (Journal)
Registered Authors
Keywords
domestication, ectotherm, plasticity, temperature
MeSH Terms
  • Animals
  • Body Temperature*
  • Phenotype
  • Temperature
  • Thermotolerance*/genetics
  • Thermotolerance*/physiology
  • Zebrafish*/genetics
  • Zebrafish*/physiology
PubMed
35617428 Full text @ Proc. Natl. Acad. Sci. USA
Abstract
Significance Plastic individuals can buffer environmental changes, maintaining a stable performance across gradients. Plasticity is therefore thought to be particularly beneficial for the survival of wild populations that experience large environmental fluctuations, such as diel and seasonal temperature changes. Maintaining plasticity is widely assumed to be costly; however, empirical evidence demonstrating this cost is scarce. Here, we predict that if plasticity is costly, it would be readily lost in a stable environment, such as a laboratory. To test this, we measured a diverse range of phenotypic traits, spanning gene expression, physiology, and behavior, in wild and laboratory zebrafish acclimated to 15 temperatures. We show that laboratory fish have lost plasticity in many traits, demonstrating that maintaining plasticity carries a cost.
Genes / Markers
Figures
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping