What evidence is there for the existence of individual genes with antagonistic pleiotropic effects?

Armand M. Leroi, Andrzej Bartke, Giovanna De Benedictis, Claudio Franceschi, Anton Gartner, Eleftherios Gonos, Martin E. Feder, Toomas Kivisild, Sylvia Lee, Nesrin Kartal-Özer, Michael Schumacher, Ewa Sikora, Eline Slagboom, Mark Tatar, Anatoli I. Yashin, Jan Vijg, Bas Zwaan

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

Classical evolutionary theory predicts the existence of genes with antagonistic effects on longevity and various components of early-life fitness. Quantitative genetic studies have provided convincing evidence that such genes exist. However, antagonistic pleiotropic effects have rarely been attributed to individual loci. We examine several classes of longevity-assurance genes: those involved in regulation of the gonad; the insulin-like growth factor pathway; free-radical scavenging; heat shock proteins and apoptosis. We find initial evidence that antagonistic pleiotropic effects are pervasive in each of these classes of genes and in various model systems - although most studies lack explicit studies of fitness components. This is particularly true of human studies. Very little is known about the early-life fitness effects of longevity loci. Given the possible medical importance of such effects we urge their future study.

Original languageEnglish (US)
Pages (from-to)421-429
Number of pages9
JournalMechanisms of Ageing and Development
Volume126
Issue number3
DOIs
StatePublished - Mar 2005
Externally publishedYes

ASJC Scopus subject areas

  • Aging
  • Developmental Biology

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