Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/1129
Title: Sex-specific mitonuclear epistasis and the evolution of mitochondrial bioenergetics, ageing, and life history in seed beetles
Authors: Đorđević, Mirko
Stojković, Biljana 
Savković, Uroš
Immonen, Elina
Tucić, Nikola
Lazarević, Jelica
Arnqvist, Göran
Keywords: Bruchinae;coadaptation;epistasis;evolution of ageing;mitochondria;mtDNA;OXPHOS;senescence;sexual dimorphism
Issue Date: 1-Feb-2017
Publisher: Society for the Study of Evolution
Journal: Evolution
Abstract: 
The role of mitochondrial DNA for the evolution of life-history traits remains debated. We examined mitonuclear effects on the activity of the multisubunit complex of the electron transport chain (ETC) involved in oxidative phosphorylation (OXPHOS) across lines of the seed beetle Acanthoscelides obtectus selected for a short (E) or a long (L) life for more than >160 generations. We constructed and phenotyped mitonuclear introgression lines, which allowed us to assess the independent effects of the evolutionary history of the nuclear and the mitochondrial genome. The nuclear genome was responsible for the largest share of divergence seen in ageing. However, the mitochondrial genome also had sizeable effects, which were sex-specific and expressed primarily as epistatic interactions with the nuclear genome. The effects of mitonuclear disruption were largely consistent with mitonuclear coadaptation. Variation in ETC activity explained a large proportion of variance in ageing and life-history traits and this multivariate relationship differed somewhat between the sexes. In conclusion, mitonuclear epistasis has played an important role in the laboratory evolution of ETC complex activity, ageing, and life histories and these are closely associated. The mitonuclear architecture of evolved differences in life-history traits and mitochondrial bioenergetics was sex-specific.
URI: https://biore.bio.bg.ac.rs/handle/123456789/1129
ISSN: 0014-3820
DOI: 10.1111/evo.13109
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