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July 31, 2025

Heat stress responsive genes are not affected by ocean warming: long-term environmental monitoring and acute thermal stress experiments identify non-overlapping sets of differentially expressed genes in a marine fish

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Authors

MBMarie V. BrasseurCBChristina E. BakowskiMCMark R. Christie

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Overview

Long-term monitoring reveals gene expression under thermal stress differs in eelpout, suggesting adaptation mechanisms in varying environments.

Key Points

  • Most heat stress responsive genes in Z. viviparus showed no changes over a 30-year period, indicating resilience to ocean warming.
  • Acute thermal stress triggered significant transcriptomic changes, demonstrating how eelpout adapt to increased energy demands.
  • Differential expression of genes between Northern and Baltic Sea populations reflects adaptation to differing salinity conditions.
  • The findings challenge the assumption that lab-based stress responses apply to natural populations facing environmental changes.

Cite This Study

Brasseur et al. (2025) studied this question.

synapsesocial.com/papers/689a0c5fe6551bb0af8cf790https://doi.org/10.21203/rs.3.rs-7212941/v1
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