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Article

Initiation, establishment, and maintenance of heritable MuDR transposon silencing in maize are mediated by distinct factors.

PLoS biology - 1 Oct 2006

Woodhouse Margaret Roth, Freeling Michael, Lisch Damon

Abstract excerpt

Paramutation and transposon silencing are two epigenetic phenomena that have intrigued and puzzled geneticists for decades. Each involves heritable changes in gene activity without changes in DNA sequence. Here we report the cloning of a gene whose activity is required for the maintenance of both silenced transposons and paramutated color genes in maize. We show that this gene, Mop1 (Mediator of paramutation1)...

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Identifiers

PMID: 16968137
DOI: 10.1371/journal.pbio.0040339
PMCID: PMC1563492

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Initiation, establishment, and maintenance of heritable MuDR transposon silencing in maize are mediated by distinct factors.PMID 16968137Read ↗

An RNA-dependent RNA polymerase is required for paramutation in maize.Semantic proximity Read ↗

RNA-dependent RNA polymerase is required for enhancer-mediated transcriptional silencing associated with paramutation at the maize p1 gene.Semantic proximity Read ↗

A mutation that prevents paramutation in maize also reverses Mutator transposon methylation and silencing.Semantic proximity Read ↗

The mop1 (mediator of paramutation1) mutant progressively reactivates one of the two genes encoded by the MuDR transposon in maize.Semantic proximity Read ↗

mediator of paramutation1 is required for establishment and maintenance of paramutation at multiple maize loci.Semantic proximity Read ↗

RNA-mediated trans-communication can establish paramutation at the b1 locus in maize.Semantic proximity Read ↗

Overlapping RdDM and non-RdDM mechanisms work together to maintain somatic repression of a paramutagenic epiallele of maize pericarp color1.Semantic proximity Read ↗

RNA-directed DNA methylation prevents rapid and heritable reversal of transposon silencing under heat stress in Zea mays.Semantic proximity Read ↗

Transcriptionally silenced transgenes in maize are activated by three mutations defective in paramutation.Semantic proximity Read ↗

Paramutation in maize: RNA mediated trans-generational gene silencing.Semantic proximity Read ↗

Trans-Homolog Interactions Facilitating Paramutation in Maize.Semantic proximity Read ↗

Paramutagenicity of a p1 epiallele in maize.Semantic proximity Read ↗

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