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The more pieces, the better the puzzle: sperm concentration increases gametic compatibility

The genetic benefits individuals receive from mate choice have been the focus of numerous studies, with several showing support for both intrinsic genetic benefits and compatibility effects on fertilization success and offspring viability. However, the robustness of these effects have rarely been te...

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Detalles Bibliográficos
Autores principales: Sherman, Craig D. H., Ab Rahim, Emi S., Olsson, Mats, Careau, Vincent
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4667825/
https://www.ncbi.nlm.nih.gov/pubmed/26664684
http://dx.doi.org/10.1002/ece3.1684
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author Sherman, Craig D. H.
Ab Rahim, Emi S.
Olsson, Mats
Careau, Vincent
author_facet Sherman, Craig D. H.
Ab Rahim, Emi S.
Olsson, Mats
Careau, Vincent
author_sort Sherman, Craig D. H.
collection PubMed
description The genetic benefits individuals receive from mate choice have been the focus of numerous studies, with several showing support for both intrinsic genetic benefits and compatibility effects on fertilization success and offspring viability. However, the robustness of these effects have rarely been tested across an ecologically relevant environmental gradient. In particular, sperm environment is a crucial factor determining fertilization success in many species, especially those with external fertilization. Here, we test the importance of sperm environment in mediating compatibility‐based selection on fertilization using a factorial breeding design. We detected a significant intrinsic male effect on fertilization success at only one of four sperm concentrations. Compatibility effects were significant at the two highest sperm concentrations and, interestingly, the magnitude of the compatibility effect consistently increased with sperm concentration. This suggests that females are able to modify the probability of sperm–egg fusion as the amount of sperm available increases.
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spelling pubmed-46678252015-12-10 The more pieces, the better the puzzle: sperm concentration increases gametic compatibility Sherman, Craig D. H. Ab Rahim, Emi S. Olsson, Mats Careau, Vincent Ecol Evol Original Research The genetic benefits individuals receive from mate choice have been the focus of numerous studies, with several showing support for both intrinsic genetic benefits and compatibility effects on fertilization success and offspring viability. However, the robustness of these effects have rarely been tested across an ecologically relevant environmental gradient. In particular, sperm environment is a crucial factor determining fertilization success in many species, especially those with external fertilization. Here, we test the importance of sperm environment in mediating compatibility‐based selection on fertilization using a factorial breeding design. We detected a significant intrinsic male effect on fertilization success at only one of four sperm concentrations. Compatibility effects were significant at the two highest sperm concentrations and, interestingly, the magnitude of the compatibility effect consistently increased with sperm concentration. This suggests that females are able to modify the probability of sperm–egg fusion as the amount of sperm available increases. John Wiley and Sons Inc. 2015-09-17 /pmc/articles/PMC4667825/ /pubmed/26664684 http://dx.doi.org/10.1002/ece3.1684 Text en © 2015 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 (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Sherman, Craig D. H.
Ab Rahim, Emi S.
Olsson, Mats
Careau, Vincent
The more pieces, the better the puzzle: sperm concentration increases gametic compatibility
title The more pieces, the better the puzzle: sperm concentration increases gametic compatibility
title_full The more pieces, the better the puzzle: sperm concentration increases gametic compatibility
title_fullStr The more pieces, the better the puzzle: sperm concentration increases gametic compatibility
title_full_unstemmed The more pieces, the better the puzzle: sperm concentration increases gametic compatibility
title_short The more pieces, the better the puzzle: sperm concentration increases gametic compatibility
title_sort more pieces, the better the puzzle: sperm concentration increases gametic compatibility
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4667825/
https://www.ncbi.nlm.nih.gov/pubmed/26664684
http://dx.doi.org/10.1002/ece3.1684
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