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The relationship between multiple mating by queens, within-colony genetic variability and fitness in the ant Lasius niger
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolutionary Biology, Conservation Biology and Genetics.
2003 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 16, no 5, 844-853 p.Article in journal (Refereed) Published
Abstract [en]

Multiple mating has been suggested to benefit social insect queens because high genetic variation within colonies might decrease the load imposed by sterile diploid males, enhance resistance to parasites and pathogens, and lead to a more effective division of labour and/or a wider range of tolerable environmental conditions. We tested these hypotheses in the ant Lasius niger with three population samples from Switzerland and Sweden. We found no diploid males in young or mature colonies suggesting a lack of diploid male load. Colonies with multiply-mated queens were not larger nor did they produce more sexuals than colonies with singly-mated queens. We did find a significantly lower frequency of multiple mating among newly mated queens than among the queens heading mature colonies in one population sample (Switzerland 1997). However, this result was not repeated in the other study population, or in the following year in the Swiss population.

Place, publisher, year, edition, pages
2003. Vol. 16, no 5, 844-853 p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-210060DOI: 10.1046/j.1420-9101.2003.00589.xPubMedID: 14635899OAI: oai:DiVA.org:uu-210060DiVA: diva2:660699
Available from: 2013-10-30 Created: 2013-10-30 Last updated: 2017-12-06Bibliographically approved

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