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Stronger net selection on males across animals
Sexual selection is considered the major driver for the evolution of sex differences. However, the eco-evolutionary dynamics of sexual selection and their role for a population’s adaptive potential to respond to environmental change have only recently been explored. Theory predicts that sexual selec...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8598160/ https://www.ncbi.nlm.nih.gov/pubmed/34787569 http://dx.doi.org/10.7554/eLife.68316 |
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author | Winkler, Lennart Moiron, Maria Morrow, Edward H Janicke, Tim |
author_facet | Winkler, Lennart Moiron, Maria Morrow, Edward H Janicke, Tim |
author_sort | Winkler, Lennart |
collection | PubMed |
description | Sexual selection is considered the major driver for the evolution of sex differences. However, the eco-evolutionary dynamics of sexual selection and their role for a population’s adaptive potential to respond to environmental change have only recently been explored. Theory predicts that sexual selection promotes adaptation at a low demographic cost only if sexual selection is aligned with natural selection and if net selection is stronger on males compared to females. We used a comparative approach to show that net selection is indeed stronger in males and provide preliminary support that this sex bias is associated with sexual selection. Given that both sexes share the vast majority of their genes, our findings corroborate the notion that the genome is often confronted with a more stressful environment when expressed in males. Collectively, our study supports one of the long-standing key assumptions required for sexual selection to bolster adaptation, and sexual selection may therefore enable some species to track environmental change more efficiently. |
format | Online Article Text |
id | pubmed-8598160 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-85981602021-11-19 Stronger net selection on males across animals Winkler, Lennart Moiron, Maria Morrow, Edward H Janicke, Tim eLife Evolutionary Biology Sexual selection is considered the major driver for the evolution of sex differences. However, the eco-evolutionary dynamics of sexual selection and their role for a population’s adaptive potential to respond to environmental change have only recently been explored. Theory predicts that sexual selection promotes adaptation at a low demographic cost only if sexual selection is aligned with natural selection and if net selection is stronger on males compared to females. We used a comparative approach to show that net selection is indeed stronger in males and provide preliminary support that this sex bias is associated with sexual selection. Given that both sexes share the vast majority of their genes, our findings corroborate the notion that the genome is often confronted with a more stressful environment when expressed in males. Collectively, our study supports one of the long-standing key assumptions required for sexual selection to bolster adaptation, and sexual selection may therefore enable some species to track environmental change more efficiently. eLife Sciences Publications, Ltd 2021-11-17 /pmc/articles/PMC8598160/ /pubmed/34787569 http://dx.doi.org/10.7554/eLife.68316 Text en © 2021, Winkler et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Evolutionary Biology Winkler, Lennart Moiron, Maria Morrow, Edward H Janicke, Tim Stronger net selection on males across animals |
title | Stronger net selection on males across animals |
title_full | Stronger net selection on males across animals |
title_fullStr | Stronger net selection on males across animals |
title_full_unstemmed | Stronger net selection on males across animals |
title_short | Stronger net selection on males across animals |
title_sort | stronger net selection on males across animals |
topic | Evolutionary Biology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8598160/ https://www.ncbi.nlm.nih.gov/pubmed/34787569 http://dx.doi.org/10.7554/eLife.68316 |
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