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- W2979354313 endingPage "20190178" @default.
- W2979354313 startingPage "20190178" @default.
- W2979354313 abstract "Evolutionary theory proposes that maternal inheritance of mitochondria will facilitate the accumulation of mitochondrial DNA (mtDNA) mutations that are harmful to males but benign or beneficial to females. Furthermore, mtDNA haplotypes sampled from across a given species distribution are expected to differ in the number and identity of these ‘male-harming’ mutations they accumulate. Consequently, it is predicted that the genetic variation which delineates distinct mtDNA haplotypes of a given species should confer larger phenotypic effects on males than females (reflecting mtDNA mutations that are male-harming, but female-benign), or sexually antagonistic effects (reflecting mutations that are male-harming, but female-benefitting). These predictions have received support from recent work examining mitochondrial haplotypic effects on adult life-history traits in Drosophila melanogaster . Here, we explore whether similar signatures of male-bias or sexual antagonism extend to a key physiological trait—metabolic rate. We measured the effects of mitochondrial haplotypes on the amount of carbon dioxide produced by individual flies, controlling for mass and activity, across 13 strains of D. melanogaster that differed only in their mtDNA haplotype. The effects of mtDNA haplotype on metabolic rate were larger in males than females. Furthermore, we observed a negative intersexual correlation across the haplotypes for metabolic rate. Finally, we uncovered a male-specific negative correlation, across haplotypes, between metabolic rate and longevity. These results are consistent with the hypothesis that maternal mitochondrial inheritance has led to the accumulation of a sex-specific genetic load within the mitochondrial genome, which affects metabolic rate and that may have consequences for the evolution of sex differences in life history. This article is part of the theme issue ‘Linking the mitochondrial genotype to phenotype: a complex endeavour’." @default.
- W2979354313 created "2019-10-18" @default.
- W2979354313 creator A5015906916 @default.
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- W2979354313 creator A5065741387 @default.
- W2979354313 creator A5066489255 @default.
- W2979354313 creator A5085092943 @default.
- W2979354313 date "2019-12-02" @default.
- W2979354313 modified "2023-10-14" @default.
- W2979354313 title "Sex-specific effects of mitochondrial haplotype on metabolic rate in<i>Drosophila melanogaster</i>support predictions of the Mother's Curse hypothesis" @default.
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- W2979354313 doi "https://doi.org/10.1098/rstb.2019.0178" @default.
- W2979354313 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6939370" @default.
- W2979354313 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31787038" @default.