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2017 ; 284
(1849
): ä Nephropedia Template TP
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Intrafamily and intragenomic conflicts in human warfare
#MMPMID28228515
Micheletti AJ
; Ruxton GD
; Gardner A
Proc Biol Sci
2017[Feb]; 284
(1849
): ä PMID28228515
show ga
Recent years have seen an explosion of multidisciplinary interest in ancient
human warfare. Theory has emphasized 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 motivations 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.