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Related Experiment Videos

Communal nesting patterns in mice implicate MHC genes in kin recognition.

C J Manning1, E K Wakeland, W K Potts

  • 1Center for Mammalian Genetics, University of Florida, Gainesville 32610.

Nature
|December 10, 1992
PubMed
Summary

Female mice prefer nesting with relatives, using genetic cues to avoid exploitation in communal nests. This behavior promotes inclusive fitness by ensuring care for related offspring.

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Area of Science:

  • Behavioral Ecology
  • Evolutionary Biology
  • Genetics

Background:

  • House mice exhibit communal nesting, nursing unrelated pups indiscriminately.
  • Communal nesting reduces infanticide but risks exploitation by non-cooperative partners.
  • Kinship theory posits preferential nesting with relatives to enhance inclusive fitness.

Purpose of the Study:

  • To investigate if female house mice preferentially select relatives as communal nesting partners.
  • To determine the genetic basis for kin recognition in communal nesting behavior.
  • To provide evidence for kin selection in a vertebrate communal nesting system.

Main Methods:

  • Studied seminatural populations of house mice (Mus musculus domesticus).
  • Assessed preference for communal nesting partners based on genetic similarity.

Related Experiment Videos

  • Utilized major histocompatibility complex (MHC) genes as markers for genetic relatedness.
  • Controlled for incidental correlations between MHC sharing and relatedness.

    • Main Results:

    • Female mice demonstrated a preference for communal nesting partners sharing allelic forms of MHC genes.
    • This preference suggests selection of genetically similar individuals as nesting partners.
    • The study met stringent criteria for demonstrating kin recognition in vertebrates.

    Conclusions:

    • Female house mice use genetic similarity, specifically at MHC loci, to choose communal nesting partners.
    • This kin recognition mechanism minimizes exploitation and maximizes inclusive fitness.
    • The findings support kin selection as a driving force in the evolution of communal nesting behavior.