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Plant Transgenerational Epigenetics.

Leandro Quadrana, Vincent Colot1

  • 1Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), F-75005 Paris, France;

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Summary
This summary is machine-generated.

Plants exhibit transgenerational epigenetics, involving heritable DNA methylation changes, unlike mammals. This review explores plant epigenetic inheritance, focusing on DNA methylation defects and their implications.

Keywords:
DNA methylationepialleleepimutationinheritancemutation

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Area of Science:

  • Plant Biology
  • Epigenetics
  • Genetics

Background:

  • Transgenerational epigenetics involves inheritance of epigenetic states without resetting between generations.
  • Plants are particularly prone to transgenerational epigenetic inheritance compared to mammals.
  • Heritable changes in DNA methylation are a key aspect of plant transgenerational epigenetics.

Purpose of the Study:

  • To review current knowledge on transgenerational epigenetics in plants.
  • To highlight the role of DNA methylation and transposable elements in this process.
  • To discuss the mechanisms of epigenetic inheritance and the influence of the environment.

Main Methods:

  • Review of existing literature on plant transgenerational epigenetics.
  • Analysis of studies on DNA methylation variation in natural and near-isogenic plant populations.
  • Examination of theoretical models for epimutability selection.

Main Results:

  • Transgenerational epigenetic inheritance in plants primarily involves DNA methylation.
  • Transposable elements contribute to the creation of epimutable alleles.
  • Limited reprogramming of DNA methylation suggests inheritance failures are due to lack of reinforcement, not resetting.

Conclusions:

  • Plant epigenetic inheritance is characterized by DNA methylation changes, influenced by transposable elements.
  • The inheritance of DNA methylation defects may stem from failed reinforcement during reproduction.
  • Further research is needed to understand the environmental role and evolutionary selection of epimutability.