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Little effect of seasonal constraints on population genetic structure in eusocial paper wasps
Climate has long been suggested to affect population genetic structures of eusocial insect societies. For instance, Hamilton [Journal of Theoretical Biology 7 (1964) 17] discusses whether temperate and tropical eusocial insects may show differences in population-level genetic structure and viscosity...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Blackwell Publishing Ltd
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492786/ https://www.ncbi.nlm.nih.gov/pubmed/23145345 http://dx.doi.org/10.1002/ece3.366 |
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author | Lengronne, Thibault Leadbeater, Ellouise Patalano, Solenn Dreier, Stephanie Field, Jeremy Sumner, Seirian Keller, Laurent |
author_facet | Lengronne, Thibault Leadbeater, Ellouise Patalano, Solenn Dreier, Stephanie Field, Jeremy Sumner, Seirian Keller, Laurent |
author_sort | Lengronne, Thibault |
collection | PubMed |
description | Climate has long been suggested to affect population genetic structures of eusocial insect societies. For instance, Hamilton [Journal of Theoretical Biology 7 (1964) 17] discusses whether temperate and tropical eusocial insects may show differences in population-level genetic structure and viscosity, and how this might relate to differences in the degree of synchrony in their life cycles or modes of nest founding. Despite the importance of Hamilton's 1964 papers, this specific idea has not been tested in actual populations of wasps, probably due to the paucity of studies on tropical species. Here, we compare colony and population genetic structures in two species of primitively eusocial paper wasps with contrasting ecologies: the tropical species Polistes canadensis and the temperate species P. dominulus. Our results provide important clarifications of Hamilton's discussion. Specifically, we show that the genetic structures of the temperate and tropical species were very similar, indicating that seasonality does not greatly affect population viscosity or inbreeding. For both species, the high genetic differentiation between nests suggests strong selection at the nest level to live with relatives, whereas low population viscosity and low genetic differentiation between nest aggregations might reflect balancing selection to disperse, avoiding competition with relatives. Overall, our study suggests no prevalence of seasonal constraints of the life cycle in affecting the population genetic structure of eusocial paper wasps. These conclusions are likely to apply also to other primitively eusocial insects, such as halictine bees. They also highlight how selection for a kin structure that promotes altruism can override potential effects of ecology in eusocial insects. |
format | Online Article Text |
id | pubmed-3492786 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Blackwell Publishing Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-34927862012-11-09 Little effect of seasonal constraints on population genetic structure in eusocial paper wasps Lengronne, Thibault Leadbeater, Ellouise Patalano, Solenn Dreier, Stephanie Field, Jeremy Sumner, Seirian Keller, Laurent Ecol Evol Original Research Climate has long been suggested to affect population genetic structures of eusocial insect societies. For instance, Hamilton [Journal of Theoretical Biology 7 (1964) 17] discusses whether temperate and tropical eusocial insects may show differences in population-level genetic structure and viscosity, and how this might relate to differences in the degree of synchrony in their life cycles or modes of nest founding. Despite the importance of Hamilton's 1964 papers, this specific idea has not been tested in actual populations of wasps, probably due to the paucity of studies on tropical species. Here, we compare colony and population genetic structures in two species of primitively eusocial paper wasps with contrasting ecologies: the tropical species Polistes canadensis and the temperate species P. dominulus. Our results provide important clarifications of Hamilton's discussion. Specifically, we show that the genetic structures of the temperate and tropical species were very similar, indicating that seasonality does not greatly affect population viscosity or inbreeding. For both species, the high genetic differentiation between nests suggests strong selection at the nest level to live with relatives, whereas low population viscosity and low genetic differentiation between nest aggregations might reflect balancing selection to disperse, avoiding competition with relatives. Overall, our study suggests no prevalence of seasonal constraints of the life cycle in affecting the population genetic structure of eusocial paper wasps. These conclusions are likely to apply also to other primitively eusocial insects, such as halictine bees. They also highlight how selection for a kin structure that promotes altruism can override potential effects of ecology in eusocial insects. Blackwell Publishing Ltd 2012-10 2012-09-14 /pmc/articles/PMC3492786/ /pubmed/23145345 http://dx.doi.org/10.1002/ece3.366 Text en © 2012 Published by Blackwell Publishing Ltd. http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation. |
spellingShingle | Original Research Lengronne, Thibault Leadbeater, Ellouise Patalano, Solenn Dreier, Stephanie Field, Jeremy Sumner, Seirian Keller, Laurent Little effect of seasonal constraints on population genetic structure in eusocial paper wasps |
title | Little effect of seasonal constraints on population genetic structure in eusocial paper wasps |
title_full | Little effect of seasonal constraints on population genetic structure in eusocial paper wasps |
title_fullStr | Little effect of seasonal constraints on population genetic structure in eusocial paper wasps |
title_full_unstemmed | Little effect of seasonal constraints on population genetic structure in eusocial paper wasps |
title_short | Little effect of seasonal constraints on population genetic structure in eusocial paper wasps |
title_sort | little effect of seasonal constraints on population genetic structure in eusocial paper wasps |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492786/ https://www.ncbi.nlm.nih.gov/pubmed/23145345 http://dx.doi.org/10.1002/ece3.366 |
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