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Related Experiment Videos

Familial imprinting determines H-2 selective mating preferences.

K Yamazaki1, G K Beauchamp, D Kupniewski

  • 1Monell Chemical Senses Center, Philadelphia, PA 19104.

Science (New York, N.Y.)
|June 3, 1988
PubMed
Summary

Mice naturally prefer mates with different H-2 types. However, this preference is learned through familial imprinting, not innate, as demonstrated by reversed mating choices in fostered mice.

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Area of Science:

  • Immunogenetics
  • Behavioral genetics
  • Maternal-fetal interactions

Background:

  • Inbred male mice exhibit a natural preference for mating with females possessing a dissimilar H-2 haplotype.
  • This innate preference suggests a role for the Major Histocompatibility Complex (MHC) in mate selection.

Purpose of the Study:

  • To investigate whether the observed H-2 selective mating preference in mice is an irrevocable genetic trait or acquired through familial imprinting.
  • To determine the developmental basis of H-2 haplotype preference in mate choice.

Main Methods:

  • Utilized a test system involving B6 (H-2b) and B6-H-2k congenic mouse strains.
  • Manipulated the H-2 haplotype of foster parents to assess the impact on offspring's mating preferences.

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Main Results:

  • B6 males (H-2b) normally prefer B6-H-2k females over B6 females.
  • B6-H-2k males normally prefer B6 females over B6-H-2k females.
  • This preference was reversed when males were fostered by parents with a different H-2 haplotype, showing a preference for the H-2 type of their foster family.

Conclusions:

  • The H-2 selective mating preference in mice is not irrevocable but is acquired through imprinting on familial H-2 types.
  • Early life exposure and social learning play a critical role in shaping mate choice behavior related to MHC genes.