Evolvability under climate change: bone development and shape plasticity are heritable and correspond with performance in Arctic charr (Salvelinus alpinus)

Campbell, C. S., Adams, C. E. , Bean, C. W. , Pilakouta, N. and Parsons, K. J. (2021) Evolvability under climate change: bone development and shape plasticity are heritable and correspond with performance in Arctic charr (Salvelinus alpinus). Evolution and Development, 23(4), pp. 333-350. (doi: 10.1111/ede.12379) (PMID:34010514)

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Environmental conditions can impact the development of phenotypes and in turn the performance of individuals. Climate change, therefore, provides a pressing need to extend our understanding of how temperature will influence phenotypic variation. To address this, we assessed the impact of increased temperatures on ecologically significant phenotypic traits in Arctic charr (Salvelinus alpinus). We raised Arctic charr at 5°C and 9°C to simulate a predicted climate change scenario and examined temperature-induced variation in ossification, bone metabolism, skeletal morphology, and escape response. Fish reared at 9°C exhibited less cartilage and bone development at the same developmental stage, but also higher bone metabolism in localized regions. The higher temperature treatment also resulted in significant differences in craniofacial morphology, changes in the degree of variation, and fewer vertebrae. Both temperature regime and vertebral number affected escape response performance, with higher temperature leading to decreased latency. These findings demonstrate that climate change has the potential to impact development through multiple routes with the potential for plasticity and the release of cryptic genetic variation to have strong impacts on function through ecological performance and survival.

Item Type:Articles
Additional Information:This study was funded by grants from the NatureScot, Royal Society, Carnegie Trust, Glasgow Natural History Society, and the University of Glasgow.
Glasgow Author(s) Enlighten ID:CAMPBELL, Calum and Bean, Professor Colin and Pilakouta, Dr Natalie and Adams, Professor Colin and Parsons, Dr Kevin
Authors: Campbell, C. S., Adams, C. E., Bean, C. W., Pilakouta, N., and Parsons, K. J.
College/School:College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine
Journal Name:Evolution and Development
ISSN (Online):1525-142X
Published Online:19 May 2021
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Evolution and Development 23(4): 333-350
Publisher Policy:Reproduced under a Creative Commons License

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