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Articles linked to this work by shared authors, journal, and citation graph.

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Paramutation at the maize pl1 locus is associated with RdDM activity at distal tandem repeats.

PLoS genetics·2024
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Locus-specific paramutation in Zea mays is maintained by a PICKLE-like chromodomain helicase DNA-binding 3 protein controlling development and male gametophyte function.

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Paramutation and related phenomena in diverse species.

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Paramutation in maize and related behaviors in metazoans.

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Related Experiment Video

Updated: Jun 21, 2026

Two-step Approach to Explore Early- and Late-stages of Organ Formation in the Avian Model: The Thymus and Parathyroid Glands Organogenesis Paradigm
13:43

Two-step Approach to Explore Early- and Late-stages of Organ Formation in the Avian Model: The Thymus and Parathyroid Glands Organogenesis Paradigm

Published on: June 17, 2018

Paramutation and development.

Jay B Hollick1

  • 1Department of Plant and Microbial Biology, University of California, Berkeley, California 94720-3102, USA. hollick@berkeley.edu

Annual Review of Cell and Developmental Biology
|July 7, 2009
PubMed
Summary

Paramutation, a heritable gene expression change via homologous chromosome interaction, involves small RNAs and transcriptional control elements. These mechanisms are crucial for both paramutation and normal plant development.

Area of Science:

  • Genetics
  • Epigenetics
  • Molecular Biology

Background:

  • Paramutation is a phenomenon where alleles of a gene interact to change the expression of one allele in a heritable manner.
  • This process involves interactions between homologous chromosomes, suggesting epigenetic regulation.
  • Previous studies have identified roles for transcriptional control sequences and small RNA pathways in paramutation.

Purpose of the Study:

  • To investigate the molecular mechanisms underlying paramutation.
  • To explore the relationship between paramutation and developmental gene control.
  • To identify key genetic and molecular factors involved in paramutation.

Main Methods:

  • Genetic analyses in plants (maize) and mice.
  • Investigating genomic sequences involved in transcriptional control.

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  • Studying the role of small RNA biology molecules.

    • Main Results:

    • Specific genomic sequences and small RNA molecules are essential for paramutation in plants and mice.
    • Some identified molecules in maize are also critical for normal plant development.
    • Evidence suggests a functional link between paramutation mechanisms and developmental gene regulation.

    Conclusions:

    • Paramutation relies on interactions between homologous chromosomes, involving transcriptional control and small RNA pathways.
    • The molecular machinery for paramutation is conserved across species and intersects with developmental pathways.
    • These findings highlight a significant connection between epigenetic gene regulation and organismal development.