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MHC genotype and male ornamentation: Genetic evidence for the Hamilton-Zuk model

In English

Författare

Summary, in English

The major histocompatibility complex (MHC) is an immunologically important cluster of highly variable genes that is known to affect fitness in domesticated mammals and birds. Spur length of male pheasants in southern Sweden correlates with male viability, female mate choice, and offspring survival rate. Here we show by genetic analyses that the MHC genotype is associated with variation in both male spur length and male viability. These are the first data that directly support a 'good genes' hypothesis by Hamilton and Zuk predicting that females discriminate among males on the basis of secondary sexual characters in order to pass on genes for disease resistance that improve fitness in their offspring.

Publiceringsår

1996

Språk

Engelska

Sidor

265-271

Publikation/Tidskrift/Serie

Royal Society of London. Proceedings B. Biological Sciences

Volym

263

Issue

1368

Dokumenttyp

Artikel i tidskrift

Förlag

Royal Society Publishing

Ämne

  • Biological Sciences

Nyckelord

  • branta-leucopsis
  • barnacle goose
  • sexual selection
  • preferences
  • mating
  • phasianus-colchicus
  • major histocompatibility complex
  • evolution
  • viability
  • pheasant
  • haplotypes

Status

Published

Projekt

  • Avian MHC genes

Forskningsgrupp

  • Molecular Ecology and Evolution Lab

ISBN/ISSN/Övrigt

  • ISSN: 1471-2954