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Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating

BACKGROUND: Organisms are predicted to behave more favourably towards relatives, and kin-biased cooperation has been found in all domains of life from bacteria to vertebrates. Cooperation based on genetic recognition cues is paradoxical because it disproportionately benefits individuals with common...

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Autores principales: Holman, Luke, van Zweden, Jelle S, Linksvayer, Timothy A, d’Ettorre, Patrizia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3850703/
https://www.ncbi.nlm.nih.gov/pubmed/24070498
http://dx.doi.org/10.1186/1471-2148-13-211
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author Holman, Luke
van Zweden, Jelle S
Linksvayer, Timothy A
d’Ettorre, Patrizia
author_facet Holman, Luke
van Zweden, Jelle S
Linksvayer, Timothy A
d’Ettorre, Patrizia
author_sort Holman, Luke
collection PubMed
description BACKGROUND: Organisms are predicted to behave more favourably towards relatives, and kin-biased cooperation has been found in all domains of life from bacteria to vertebrates. Cooperation based on genetic recognition cues is paradoxical because it disproportionately benefits individuals with common phenotypes, which should erode the required cue polymorphism. Theoretical models suggest that many recognition loci likely have some secondary function that is subject to diversifying selection, keeping them variable. RESULTS: Here, we use individual-based simulations to investigate the hypothesis that the dual use of recognition cues to facilitate social behaviour and disassortative mating (e.g. for inbreeding avoidance) can maintain cue diversity over evolutionary time. Our model shows that when organisms mate disassortatively with respect to their recognition cues, cooperation and recognition locus diversity can persist at high values, especially when outcrossed matings produce more surviving offspring. Mating system affects cue diversity via at least four distinct mechanisms, and its effects interact with other parameters such as population structure. Also, the attrition of cue diversity is less rapid when cooperation does not require an exact cue match. Using a literature review, we show that there is abundant empirical evidence that heritable recognition cues are simultaneously used in social and sexual behaviour. CONCLUSIONS: Our models show that mate choice is one possible resolution of the paradox of genetic kin recognition, and the literature review suggests that genetic recognition cues simultaneously inform assortative cooperation and disassortative mating in a large range of taxa. However, direct evidence is scant and there is substantial scope for future work.
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spelling pubmed-38507032013-12-16 Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating Holman, Luke van Zweden, Jelle S Linksvayer, Timothy A d’Ettorre, Patrizia BMC Evol Biol Research Article BACKGROUND: Organisms are predicted to behave more favourably towards relatives, and kin-biased cooperation has been found in all domains of life from bacteria to vertebrates. Cooperation based on genetic recognition cues is paradoxical because it disproportionately benefits individuals with common phenotypes, which should erode the required cue polymorphism. Theoretical models suggest that many recognition loci likely have some secondary function that is subject to diversifying selection, keeping them variable. RESULTS: Here, we use individual-based simulations to investigate the hypothesis that the dual use of recognition cues to facilitate social behaviour and disassortative mating (e.g. for inbreeding avoidance) can maintain cue diversity over evolutionary time. Our model shows that when organisms mate disassortatively with respect to their recognition cues, cooperation and recognition locus diversity can persist at high values, especially when outcrossed matings produce more surviving offspring. Mating system affects cue diversity via at least four distinct mechanisms, and its effects interact with other parameters such as population structure. Also, the attrition of cue diversity is less rapid when cooperation does not require an exact cue match. Using a literature review, we show that there is abundant empirical evidence that heritable recognition cues are simultaneously used in social and sexual behaviour. CONCLUSIONS: Our models show that mate choice is one possible resolution of the paradox of genetic kin recognition, and the literature review suggests that genetic recognition cues simultaneously inform assortative cooperation and disassortative mating in a large range of taxa. However, direct evidence is scant and there is substantial scope for future work. BioMed Central 2013-09-27 /pmc/articles/PMC3850703/ /pubmed/24070498 http://dx.doi.org/10.1186/1471-2148-13-211 Text en Copyright © 2013 Holman et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Holman, Luke
van Zweden, Jelle S
Linksvayer, Timothy A
d’Ettorre, Patrizia
Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
title Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
title_full Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
title_fullStr Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
title_full_unstemmed Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
title_short Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
title_sort crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3850703/
https://www.ncbi.nlm.nih.gov/pubmed/24070498
http://dx.doi.org/10.1186/1471-2148-13-211
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