Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection
Comparing observed versus theoretically expected evolutionary responses is important for our understanding of the evolutionary process, and for assessing how species may cope with anthropogenic change. Here, we document directional selection for larger female size in Atlantic salmon, using pedigree-...
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ftunivcollcork:oai:cora.ucc.ie:10468/11527 2023-08-27T04:08:30+02:00 Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection O'Sullivan, Ronan J. Aykanat, Tutku Johnston, Susan E. Kane, Adam Poole, Russell Rogan, Ger Prodöhl, Paulo A. Primmer, Craig R. McGinnity, Philip Reed, Thomas E. 2019-06-11 application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document http://hdl.handle.net/10468/11527 https://doi.org/10.1002/ece3.5274 en eng Wiley info:eu-repo/grantAgreement/EC/H2020::ERC::ERC-STG/639192/EU/Alternative life histories: linking genes to phenotypes to demography/ALH info:eu-repo/grantAgreement/SFI/SFI Investigator Programme/15/IA/3028/IE/Wild farmed interactions in a changing world: formulation of a predictive methodology to inform environmental best practice to secure long-term sustainability of global wild and farm fish populations/ https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.5274 O'Sullivan, R. J., Aykanat, T., Johnston, S. E., Kane, A., Poole, R., Rogan, G., Prodöhl, P. A., Primmer, C. R., McGinnity, P. and Reed, T. E. (2019) 'Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection', Ecology and Evolution, 9(12), pp. 7096-7111. doi:10.1002/ece3.5274 doi:10.1002/ece3.5274 71111 2045-7758 12 Ecology and Evolution 7096 http://hdl.handle.net/10468/11527 9 © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ Atlantic salmon Pedigree Phenotypic selection Secondary theorem of selection Breeder's equation Article (peer-reviewed) 2019 ftunivcollcork https://doi.org/10.1002/ece3.5274 2023-08-06T14:31:14Z Comparing observed versus theoretically expected evolutionary responses is important for our understanding of the evolutionary process, and for assessing how species may cope with anthropogenic change. Here, we document directional selection for larger female size in Atlantic salmon, using pedigree-derived estimates of lifetime reproductive success as a fitness measure. We show the trait is heritable and, thus, capable of responding to selection. The Breeder's Equation, which predicts microevolution as the product of phenotypic selection and heritability, predicted evolution of larger size. This was at odds, however, with the observed lack of either phenotypic or genetic temporal trends in body size, a so-called “paradox of stasis.” To investigate this paradox, we estimated the additive genetic covariance between trait and fitness, which provides a prediction of evolutionary change according to Robertson's secondary theorem of selection (STS) that is unbiased by missing variables. The STS prediction was consistent with the observed stasis. Decomposition of phenotypic selection gradients into genetic and environmental components revealed a potential upward bias, implying unmeasured factors that covary with trait and fitness. These results showcase the power of pedigreed, wild population studies—which have largely been limited to birds and mammals—to study evolutionary processes on contemporary timescales. Article in Journal/Newspaper Atlantic salmon University College Cork, Ireland: Cork Open Research Archive (CORA) Ecology and Evolution 9 12 7096 7111 |
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Open Polar |
collection |
University College Cork, Ireland: Cork Open Research Archive (CORA) |
op_collection_id |
ftunivcollcork |
language |
English |
topic |
Atlantic salmon Pedigree Phenotypic selection Secondary theorem of selection Breeder's equation |
spellingShingle |
Atlantic salmon Pedigree Phenotypic selection Secondary theorem of selection Breeder's equation O'Sullivan, Ronan J. Aykanat, Tutku Johnston, Susan E. Kane, Adam Poole, Russell Rogan, Ger Prodöhl, Paulo A. Primmer, Craig R. McGinnity, Philip Reed, Thomas E. Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection |
topic_facet |
Atlantic salmon Pedigree Phenotypic selection Secondary theorem of selection Breeder's equation |
description |
Comparing observed versus theoretically expected evolutionary responses is important for our understanding of the evolutionary process, and for assessing how species may cope with anthropogenic change. Here, we document directional selection for larger female size in Atlantic salmon, using pedigree-derived estimates of lifetime reproductive success as a fitness measure. We show the trait is heritable and, thus, capable of responding to selection. The Breeder's Equation, which predicts microevolution as the product of phenotypic selection and heritability, predicted evolution of larger size. This was at odds, however, with the observed lack of either phenotypic or genetic temporal trends in body size, a so-called “paradox of stasis.” To investigate this paradox, we estimated the additive genetic covariance between trait and fitness, which provides a prediction of evolutionary change according to Robertson's secondary theorem of selection (STS) that is unbiased by missing variables. The STS prediction was consistent with the observed stasis. Decomposition of phenotypic selection gradients into genetic and environmental components revealed a potential upward bias, implying unmeasured factors that covary with trait and fitness. These results showcase the power of pedigreed, wild population studies—which have largely been limited to birds and mammals—to study evolutionary processes on contemporary timescales. |
format |
Article in Journal/Newspaper |
author |
O'Sullivan, Ronan J. Aykanat, Tutku Johnston, Susan E. Kane, Adam Poole, Russell Rogan, Ger Prodöhl, Paulo A. Primmer, Craig R. McGinnity, Philip Reed, Thomas E. |
author_facet |
O'Sullivan, Ronan J. Aykanat, Tutku Johnston, Susan E. Kane, Adam Poole, Russell Rogan, Ger Prodöhl, Paulo A. Primmer, Craig R. McGinnity, Philip Reed, Thomas E. |
author_sort |
O'Sullivan, Ronan J. |
title |
Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection |
title_short |
Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection |
title_full |
Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection |
title_fullStr |
Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection |
title_full_unstemmed |
Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection |
title_sort |
evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection |
publisher |
Wiley |
publishDate |
2019 |
url |
http://hdl.handle.net/10468/11527 https://doi.org/10.1002/ece3.5274 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
info:eu-repo/grantAgreement/EC/H2020::ERC::ERC-STG/639192/EU/Alternative life histories: linking genes to phenotypes to demography/ALH info:eu-repo/grantAgreement/SFI/SFI Investigator Programme/15/IA/3028/IE/Wild farmed interactions in a changing world: formulation of a predictive methodology to inform environmental best practice to secure long-term sustainability of global wild and farm fish populations/ https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.5274 O'Sullivan, R. J., Aykanat, T., Johnston, S. E., Kane, A., Poole, R., Rogan, G., Prodöhl, P. A., Primmer, C. R., McGinnity, P. and Reed, T. E. (2019) 'Evolutionary stasis of a heritable morphological trait in a wild fish population despite apparent directional selection', Ecology and Evolution, 9(12), pp. 7096-7111. doi:10.1002/ece3.5274 doi:10.1002/ece3.5274 71111 2045-7758 12 Ecology and Evolution 7096 http://hdl.handle.net/10468/11527 9 |
op_rights |
© 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.5274 |
container_title |
Ecology and Evolution |
container_volume |
9 |
container_issue |
12 |
container_start_page |
7096 |
op_container_end_page |
7111 |
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1775349310707204096 |