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Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating
Kin recognition, the ability to distinguish kin from non-kin, can facilitate cooperation between relatives. Evolutionary theory predicts that polymorphism in recognition cues, which is essential for effective recognition, would be unstable. Individuals carrying rare recognition cues would benefit le...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448137/ https://www.ncbi.nlm.nih.gov/pubmed/26018043 http://dx.doi.org/10.1038/ncomms8144 |
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author | Ho, Hsing-I Shaulsky, Gad |
author_facet | Ho, Hsing-I Shaulsky, Gad |
author_sort | Ho, Hsing-I |
collection | PubMed |
description | Kin recognition, the ability to distinguish kin from non-kin, can facilitate cooperation between relatives. Evolutionary theory predicts that polymorphism in recognition cues, which is essential for effective recognition, would be unstable. Individuals carrying rare recognition cues would benefit less from social interactions than individuals with common cues, leading to loss of the genetic-cue diversity. We test this evolutionary hypothesis in Dictyostelium discoideum, which forms multicellular fruiting bodies by aggregation and utilizes two polymorphic membrane proteins to facilitate preferential cooperation. Surprisingly, we find that rare recognition variants are tolerated and maintain their frequencies among incompatible majority during development. Although the rare variants are initially excluded from the aggregates, they subsequently rejoin the aggregate and produce spores. Social cheating is also refrained in late development, thus limiting the cost of chimerism. Our results suggest a potential mechanism to sustain the evolutionary stability of kin-recognition genes and to suppress cheating. |
format | Online Article Text |
id | pubmed-4448137 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44481372015-06-18 Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating Ho, Hsing-I Shaulsky, Gad Nat Commun Article Kin recognition, the ability to distinguish kin from non-kin, can facilitate cooperation between relatives. Evolutionary theory predicts that polymorphism in recognition cues, which is essential for effective recognition, would be unstable. Individuals carrying rare recognition cues would benefit less from social interactions than individuals with common cues, leading to loss of the genetic-cue diversity. We test this evolutionary hypothesis in Dictyostelium discoideum, which forms multicellular fruiting bodies by aggregation and utilizes two polymorphic membrane proteins to facilitate preferential cooperation. Surprisingly, we find that rare recognition variants are tolerated and maintain their frequencies among incompatible majority during development. Although the rare variants are initially excluded from the aggregates, they subsequently rejoin the aggregate and produce spores. Social cheating is also refrained in late development, thus limiting the cost of chimerism. Our results suggest a potential mechanism to sustain the evolutionary stability of kin-recognition genes and to suppress cheating. Nature Pub. Group 2015-05-28 /pmc/articles/PMC4448137/ /pubmed/26018043 http://dx.doi.org/10.1038/ncomms8144 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Ho, Hsing-I Shaulsky, Gad Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating |
title | Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating |
title_full | Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating |
title_fullStr | Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating |
title_full_unstemmed | Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating |
title_short | Temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating |
title_sort | temporal regulation of kin recognition maintains recognition-cue diversity and suppresses cheating |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448137/ https://www.ncbi.nlm.nih.gov/pubmed/26018043 http://dx.doi.org/10.1038/ncomms8144 |
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