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Understanding developmental plasticity as adaptation requires an inter-generational perspective.

Jonathan C K Wells1

  • 1Childhood Nutrition Research Centre, Population, Policy and Practice Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK.

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Summary

Developmental plasticity offers evolutionary advantages by integrating biomedical and evolutionary views. Understanding maternal influence on offspring adaptation is crucial for a complete evolutionary framework.

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Area of Science:

  • Evolutionary biology
  • Developmental biology
  • Public health

Background:

  • Developmental plasticity is key to adaptation.
  • Existing models of developmental plasticity as adaptation focus on early constraints or ecological cues.
  • These models often overlook the maternal phenotype's role.

Purpose of the Study:

  • To highlight the importance of maternal phenotype in developmental plasticity.
  • To propose a more comprehensive adaptive framework for developmental plasticity.

Main Methods:

  • Conceptual analysis of existing theories on developmental plasticity.
  • Integration of evolutionary and biomedical perspectives.

Main Results:

  • Maternal phenotype significantly mediates early constraints and cues influencing offspring development.
  • Developmental plasticity is greatest when maternal investment strategy shapes offspring's early environment.
  • Offspring adaptation during this period targets the maternal phenotype.

Conclusions:

  • A comprehensive framework for developmental plasticity must incorporate the inter-generational effects of maternal investment.
  • Ignoring maternal influence limits our understanding of adaptive evolution.
  • Developmental plasticity is critical for the fitness of both parents and offspring.