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Intrafamily and intragenomic conflicts in human warfare

Research output: Contribution to journalArticle

Author(s)

Alberto J. C. Micheletti, Graeme D. Ruxton, Andy Gardner

School/Research organisations

Abstract

Recent years have seen an explosion of multidisciplinary interest in ancient human warfare. Theory has emphasised a key role for kin-selected cooperation, modulated by sex-specific demography, in explaining intergroup violence. However, conflicts of interest remain a relatively underexplored factor in the evolutionary-ecological study of warfare, with little consideration given to which parties influence the decision to go to war and how their motivation may differ. We develop a mathematical model to investigate the interplay between sex-specific demography and human warfare, showing that: the ecology of warfare drives the evolution of sex-biased dispersal; sex-biased dispersal modulates intrafamily and intragenomic conflicts in relation to warfare; intragenomic conflict drives parent-of-origin-specific patterns of gene expression – i.e. 'genomic imprinting' – in relation to warfare phenotypes; and an ecological perspective of conflicts at the levels of the gene, individual and social group yields novel predictions as to pathologies associated with mutations and epimutations at loci underpinning human violence.
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Details

Original languageEnglish
Article number20162699
Number of pages10
JournalProceedings of the Royal Society B: Biological Sciences
Volume284
Issue number1849
DOIs
Publication statusPublished - 22 Feb 2017

    Research areas

  • War, Sex-biased dispersal, Parent-offspring conflict, Sexual conflict, Intragenomic conflict, Genomic imprinting

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