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Author (up) Maklakov, A.A.; Fricke, C.; Arnqvist, G. url  doi
openurl 
  Title Sexual selection affects lifespan and aging in the seed beetle Type Journal Article
  Year 2007 Publication Aging Cell Abbreviated Journal Aging Cell  
  Volume 6 Issue 6 Pages 739-744  
  Keywords Aging/*genetics; Animals; Beetles/genetics/*physiology; Female; Longevity/*genetics; Male; *Selection (Genetics); *Sex; Sex Factors  
  Abstract Sexual selection in general, and sexual conflict in particular, should affect the evolution of lifespan and aging. Using experimental evolution, we tested whether removal of sexual selection leads to the evolution of accelerated or decelerated senescence. We subjected replicated populations of the seed beetle Callosobruchus maculatus to either of two selection regimes for 35 generations. These regimes either allowed (polygamy) or removed the potential (monogamy) for sexual selection to operate. To test for the evolution of intrinsic differences between the two selection regimes, we assayed longevity in replicate cohorts of virgin females and males. Virgin females from populations evolving under sexual selection had reduced lifespan as predicted by the sexual conflict theory of aging. However, this reduction was due to increased baseline mortality rather than an increase in age-specific mortality rates with age. We discuss these findings in light of other data from this model system and suggest that system-specific idiosyncrasies may often modulate the general effects of male-female coevolution on the evolution of aging.  
  Address Department of Ecology and Evolution, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden. a.maklakov@unsw.edu.au  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1474-9726 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:17725688 Approved no  
  Call Number GGC @ mschluet @ Serial 25  
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