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Related Experiment Videos

Maternity assignment and queen replacement in a social wasp

J M Peters1, D C Queller, J E Strassmann

  • 1Department of Ecology and Evolutionary Biology, Rice University, Houston, Texas 77251, USA.

Proceedings. Biological Sciences
|April 22, 1995
PubMed
Summary

This study introduces a new method using microsatellite DNA to accurately assign offspring to mothers in social insects. This technique reveals significant shifts in reproductive dominance, advancing our understanding of social evolution.

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Area of Science:

  • Evolutionary biology
  • Behavioral ecology
  • Genetics

Background:

  • Parentage assignment is crucial for studying reproductive strategies in social insects.
  • Existing molecular genetic methods face challenges in social insects due to relatedness of candidate mothers and unknown fathers.

Purpose of the Study:

  • To develop and validate a novel method for accurate maternity assignment in social insects.
  • To investigate reproductive conflicts and cooperation using genetic parentage analysis.
  • To explore changes in reproductive dominance within a social insect population.

Main Methods:

  • Scoring microsatellite loci from a mother's stored sperm for parentage analysis.
  • Applying this method to a large-scale study of the wasp, Polistes annularis.

Related Experiment Videos

  • Genotyping 219 daughters to assign maternity or identify uncollected mothers.

    • Main Results:

    • Successfully assigned all genotyped daughters to a unique mother or an uncollected dead mother.
    • Observed a surprisingly high frequency of changes in reproductive dominance.
    • Demonstrated the practical utility and power of the developed method.

    Conclusions:

    • Microsatellite analysis of stored sperm provides an effective tool for maternity assignment in social insects.
    • The findings highlight dynamic reproductive behaviors and shifts in dominance.
    • This method offers solutions for complex questions in social evolution research.