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Nature, nurture and epigenetics.

David Crews1, Ross Gillette2, Isaac Miller-Crews1

  • 1Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712, USA.

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PubMed
Summary
This summary is machine-generated.

Nature and nurture interactions are complex. Epigenetic modifications offer a new framework to understand how environmental factors, like endocrine disruptors, shape phenotypes beyond traditional genetics.

Keywords:
AdolescenceEpigeneticStressSynchronicityTransgenerationalVinclozolin

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Area of Science:

  • Environmental epigenetics
  • Developmental toxicology

Background:

  • The traditional nature versus nurture dichotomy and Genes x Environment (G x E) models inadequately explain complex trait inheritance.
  • Studying the interplay of heritability and experience is challenging due to inherent entanglement.
  • Global environmental changes, such as endocrine disruption, necessitate new biological principles.

Purpose of the Study:

  • To propose a new perspective on phenotype development focusing on epigenetic modifications.
  • To review the literature on epigenetic mechanisms in shaping traits.
  • To highlight research on the fungicide vinclozolin as a case study.

Main Methods:

  • Literature review of epigenetic modifications and their role in phenotype development.
  • Analysis of research on environmental exposures, specifically endocrine disruptors like vinclozolin.
  • Conceptual framework development for understanding gene-environment interactions beyond traditional models.

Main Results:

  • Epigenetic modifications provide a mechanism to explain how environmental exposures can alter gene expression and phenotype across generations.
  • Endocrine disruption represents a significant environmental factor shaping phenotypes independently of natural selection.
  • Vinclozolin exposure demonstrates how environmental toxicants can induce transgenerational epigenetic inheritance.

Conclusions:

  • Epigenetic modifications are crucial for understanding phenotype development in the context of environmental change.
  • A shift towards studying epigenetic inheritance is needed to address the impact of modern environmental factors.
  • Further research into environmental epigenetics, particularly endocrine disruptors, is essential for predicting future biological transformations.