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Predictive adaptive responses and human evolution.

Peter D Gluckman1, Mark A Hanson, Hamish G Spencer

  • 1The Liggins Institute and National Research Centre for Growth and Development, University of Auckland, Private Bag 92019, Auckland, New Zealand. pd.gluckman@auckland.ac.nz

Trends in Ecology & Evolution
|May 17, 2006
PubMed
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Phenotypic plasticity allows a single genotype to create different traits based on environmental conditions. Predictive adaptive responses (PARs) improve future fitness, playing a key role in human evolution and public health.

Area of Science:

  • Evolutionary Biology
  • Developmental Biology
  • Human Evolution

Background:

  • Phenotypic plasticity, the ability of a genotype to produce varied phenotypes across environments, is crucial in evolutionary theory.
  • Organisms typically adjust phenotypes for immediate survival in response to environmental cues.
  • A subset of these responses, termed predictive adaptive responses (PARs), enhances later-life fitness.

Purpose of the Study:

  • To introduce and define predictive adaptive responses (PARs) as a distinct category of phenotypic plasticity.
  • To highlight the evolutionary significance of PARs in shaping human development.
  • To underscore the public health implications of understanding PARs.

Main Methods:

  • Conceptual framework development

Related Experiment Videos

  • Review of evolutionary and developmental biology principles
  • Analysis of adaptive significance in phenotypic variation

    • Main Results:

    • PARs represent a class of phenotypic responses optimizing future, not immediate, fitness.
    • PARs have played a significant role in human evolutionary history.
    • Understanding PARs is critical for interpreting human adaptation and health outcomes.

    Conclusions:

    • Predictive adaptive responses are a key mechanism in evolutionary adaptation.
    • The concept of PARs offers novel insights into human evolution.
    • Recognizing PARs is essential for advancing public health strategies and understanding disease etiology.