Pettersen, A. K., Metcalfe, N. B. and Seebacher, F. (2024) Intergenerational plasticity aligns with temperature-dependent selection on offspring metabolic rates. Philosophical Transactions of the Royal Society B: Biological Sciences, 379(1896), 20220496. (doi: 10.1098/rstb.2022.0496) (PMID:38186279) (PMCID:PMC10772613)
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Abstract
Metabolic rates are linked to key life-history traits that are thought to set the pace of life and affect fitness, yet the role that parents may have in shaping the metabolism of their offspring to enhance survival remains unclear. Here, we investigated the effect of temperature (24°C or 30°C) and feeding frequency experienced by parent zebrafish (Danio rerio) on offspring phenotypes and early survival at different developmental temperatures (24°C or 30°C). We found that embryo size was larger, but survival lower, in offspring from the parental low food treatment. Parents exposed to the warmer temperature and lower food treatment also produced offspring with lower standard metabolic rates—aligning with selection on embryo metabolic rates. Lower metabolic rates were correlated with reduced developmental and growth rates, suggesting selection for a slow pace of life. Our results show that intergenerational phenotypic plasticity on offspring size and metabolic rate can be adaptive when parent and offspring temperatures are matched: the direction of selection on embryo size and metabolism aligned with intergenerational plasticity towards lower metabolism at higher temperatures, particularly in offspring from low-condition parents. These findings provide evidence for adaptive parental effects, but only when parental and offspring environments match. This article is part of the theme issue ‘The evolutionary significance of variation in metabolic rates’.
| Item Type: | Articles |
|---|---|
| Additional Information: | This work was supported by a European Commission Horizon 2020 Marie Sklodowska Curie Actions Global Research Fellowship to AKP (101022401). NBM was funded by European Research Council Advanced Grant 834653. |
| Keywords: | Development, energy, maternal effects, metabolism, parental investment, reproductive investment. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Metcalfe, Professor Neil and Pettersen, Dr Amanda |
| Authors: | Pettersen, A. K., Metcalfe, N. B., and Seebacher, F. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine |
| Journal Name: | Philosophical Transactions of the Royal Society B: Biological Sciences |
| Publisher: | The Royal Society |
| ISSN: | 0962-8436 |
| ISSN (Online): | 1471-2970 |
| Published Online: | 08 January 2024 |
| Copyright Holders: | Copyright © 2024 The Authors |
| First Published: | First published in Philosophical Transactions of the Royal Society B: Biological Sciences 379(1896):20220496 |
| Publisher Policy: | Reproduced under a Creative Commons license |
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