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The influence of mitonuclear genetic variation on personality in seed beetles
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
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2014 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 281, no 1796, UNSP 20141039- p.Article in journal (Refereed) Published
Abstract [en]

There is a growing awareness of the influence of mitochondrial genetic variation on life-history phenotypes, particularly via epistatic interactions with nuclear genes. Owing to their direct effect on traits such as metabolic and growth rates, mitonuclear interactions may also affect variation in behavioural types or personalities (i.e. behavioural variation that is consistent within individuals, but differs among individuals). However, this possibility is largely unexplored. We used mitonuclear introgression lines, where three mitochondrial genomes were introgressed into three nuclear genetic backgrounds, to disentangle genetic effects on behavioural variation in a seed beetle. We found within-individual consistency in a suite of activity-related behaviours, providing evidence for variation in personality. Composite measures of overall activity of individuals in behavioural assays were influenced by both nuclear genetic variation and by the interaction between nuclear and mitochondrial genomes. More importantly, the degree of expression of behavioural and life-history phenotypes was correlated and mitonuclear genetic variation affected expression of these concerted phenotypes. These results show that mitonuclear genetic variation affects both behavioural and life-history traits, and they provide novel insights into the maintenance of genetic variation in behaviour and personality.

Place, publisher, year, edition, pages
2014. Vol. 281, no 1796, UNSP 20141039- p.
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:uu:diva-234659DOI: 10.1098/rspb.2014.1039ISI: 000343674500003OAI: oai:DiVA.org:uu-234659DiVA: diva2:757402
Funder
Swedish Research Council, 623-2007-8432, 621-2010-5266EU, European Research Council, GENCON AdG-294333
Available from: 2014-10-22 Created: 2014-10-22 Last updated: 2014-12-01Bibliographically approved

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Immonen, ElinaArnqvist, Göran
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