White, N.J. orcid.org/0000-0002-0898-760X and Butlin, R.K. orcid.org/0000-0003-4736-0954 (2021) Multidimensional divergent selection, local adaptation, and speciation. Evolution, 75 (9). pp. 2167-2178. ISSN 0014-3820
Abstract
Divergent selection applied to one or more traits drives local adaptation and may lead to ecological speciation. Divergent selection on many traits might be termed “multidimensional” divergent selection. There is a commonly held view that multidimensional divergent selection is likely to promote local adaptation and speciation to a greater extent than unidimensional divergent selection. We disentangle the core concepts underlying dimensionality as a property of the environment, phenotypes, and genome. In particular, we identify a need to separate the overall strength of selection and the number of loci affected from dimensionality per se, and to distinguish divergence dimensionality from dimensionality of stabilizing selection. We then critically scrutinize this commonly held view that multidimensional selection promotes speciation, re-examining the evidence base from theory, experiments, and nature. We conclude that the evidence base is currently weak and generally suffers from confounding of possible causal effects. Finally, we propose several mechanisms by which multidimensional divergent selection and related processes might influence divergence, both as a driver and as a barrier.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 The Authors. Evolution published by Wiley Periodicals LLC on behalf of The Society for the Study of Evolution. This is an open access article under the terms of the Creative Commons Attribution License, (http://creativecommons.org/licenses/by/4.0/) which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Adaptive landscape; dimensionality; divergent selection; gene flow; incompatibilities; multidimensional selection; speciation |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Biosciences (Sheffield) |
Funding Information: | Funder Grant number EUROPEAN COMMISSION - HORIZON 2020 693030 NATURAL ENVIRONMENT RESEARCH COUNCIL NE/P012272/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 14 Apr 2022 12:45 |
Last Modified: | 11 Feb 2023 03:04 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1111/evo.14312 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:185727 |