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Pollinator loss causes rapid adaptive evolution of selfing and dramatically reduces genome‐wide genetic variability
dc.contributor.author | Busch, Jeremiah W. | |
dc.contributor.author | Bodbyl‐Roels, Sarah | |
dc.contributor.author | Tusuubira, Sharif | |
dc.contributor.author | Kelly, John K. | |
dc.date.accessioned | 2023-03-02T15:50:38Z | |
dc.date.available | 2023-03-02T15:50:38Z | |
dc.date.issued | 2022-09-01 | |
dc.identifier.citation | Jeremiah W. Busch, Sarah Bodbyl‐Roels, Sharif Tusuubira, John K. Kelly, Pollinator loss causes rapid adaptive evolution of selfing and dramatically reduces genome‐wide genetic variability, Evolution, Volume 76, Issue 9, 1 September 2022, Pages 2130–2144, https://doi.org/10.1111/evo.14572 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/33981 | |
dc.description | This article has been accepted for publication in Evolution: International Journal of Organic Evolution Published by Oxford University Press. | en_US |
dc.description.abstract | Although selfing populations harbor little genetic variation limiting evolutionary potential, the causes are unclear. We experimentally evolved large, replicate populations of Mimulus guttatus for nine generations in greenhouses with or without pollinating bees and studied DNA polymorphism in descendants. Populations without bees adapted to produce more selfed seed yet exhibited striking reductions in DNA polymorphism despite large population sizes. Importantly, the genome‐wide pattern of variation cannot be explained by a simple reduction in effective population size, but instead reflects the complicated interaction between selection, linkage, and inbreeding. Simulations demonstrate that the spread of favored alleles at few loci depresses neutral variation genome wide in large populations containing fully selfing lineages. It also generates greater heterogeneity among chromosomes than expected with neutral evolution in small populations. Genome‐wide deviations from neutrality were documented in populations with bees, suggesting widespread influences of background selection. After applying outlier tests to detect loci under selection, two genome regions were found in populations with bees, yet no adaptive loci were otherwise mapped. Large amounts of stochastic change in selfing populations compromise evolutionary potential and undermine outlier tests for selection. This occurs because genetic draft in highly selfing populations makes even the largest changes in allele frequency unremarkable. | en_US |
dc.publisher | Oxford University Press | en_US |
dc.rights | © 2022 The Authors. Evolution © 2022 The Society for the Study of Evolution. 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. | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
dc.subject | Experimental evolution | en_US |
dc.subject | Genetic draft | en_US |
dc.subject | Pollinators | en_US |
dc.subject | Polygenic adaptation | en_US |
dc.subject | Self-fertilization | en_US |
dc.title | Pollinator loss causes rapid adaptive evolution of selfing and dramatically reduces genome‐wide genetic variability | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Tusuubira, Sharif | |
kusw.kuauthor | Kelly, John K. | |
kusw.kudepartment | Ecology and Evolutionary Biology | en_US |
dc.identifier.doi | 10.1111/evo.14572 | en_US |
dc.identifier.orcid | https://orcid.org/0000-0001-6280-8871 | en_US |
kusw.oaversion | Scholarly/refereed, author accepted manuscript | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.identifier.pmid | PMC9543508 | en_US |
dc.rights.accessrights | embargoedAccess | en_US |
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Except where otherwise noted, this item's license is described as: © 2022 The Authors. Evolution © 2022 The Society for the Study of Evolution. 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.