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Article

Transgenerational effect of mutants in the RNA-directed DNA methylation pathway on the triploid block in Arabidopsis.

Genome biology - 6 May 2021

Wang Zhenxing, Butel Nicolas, Santos-González Juan, Simon Lauriane, Wärdig Cecilia, Köhler Claudia

Abstract excerpt

BACKGROUND: Hybridization of plants that differ in number of chromosome sets (ploidy) frequently causes endosperm failure and seed arrest, a phenomenon referred to as triploid block. In Arabidopsis, loss of function of NRPD1, encoding the largest subunit of the plant-specific RNA polymerase IV (Pol IV), can suppress the triploid block. Pol IV generates short RNAs required to guide de novo methylation in the...

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Identifiers

PMID: 33957942
DOI: 10.1186/s13059-021-02359-2
PMCID: PMC8101200

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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