Cited by 140Epigenetics and DNA MethylationPlant Molecular Biology ResearchChromosomal and Genetic Variations

The RNAs of RNA-directed DNA methylation

Open access
Wendte, Jered M., Pikaard, Craig S.·2017·Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms

Abstract

RNA-directed chromatin modification that includes cytosine methylation silences transposable elements in both plants and mammals, contributing to genome defense and stability. In Arabidopsis thaliana, most RNA-directed DNA methylation (RdDM) is guided by small RNAs derived from double-stranded precursors synthesized at cytosine-methylated loci by nuclear multisubunit RNA Polymerase IV (Pol IV), in close partnership with the RNA-dependent RNA polymerase, RDR2. These small RNAs help keep transposons transcriptionally inactive. However, if transposons escape silencing, and are transcribed by multisubunit RNA polymerase II (Pol II), their mRNAs can be recognized and degraded, generating small RNAs that can also guide initial DNA methylation, thereby enabling subsequent Pol IV-RDR2 recruitment. In both pathways, the small RNAs find their target sites by interacting with longer noncoding RNAs synthesized by multisubunit RNA Polymerase V (Pol V). Despite a decade of progress, numerous questions remain concerning the initiation, synthesis, processing, size and features of the RNAs that drive RdDM. Here, we review recent insights, questions and controversies concerning RNAs produced by Pols IV and V, and their functions in RdDM. We also provide new data concerning Pol V transcript 5' and 3' ends. This article is part of a Special Issue entitled: Plant Gene Regulatory Mechanisms and Networks. This article is part of a Special Issue entitled: Plant Gene Regulatory Mechanisms and Networks, edited by Dr. Erich Grotewold and Dr. Nathan Springer.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.bbagrm.2016.08.004

Cites

110 of 110 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Plants make small RNAs from double-stranded precursors using dedicated polymerases; these RNAs target DNA methylation and H3K9 methylation machinery.

    “Plants produce small RNAs derived from double-stranded precursors, which are synthesized by dedicated polymerases and target DNA methylation and the H3K9 methylation machinery 71 .”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Wendte, J. M., & Pikaard, C. S.
Affiliations
  • Indiana University Bloomington (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Pikaard, Craig S.
Venue
Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms
Publisher
Elsevier BV
Published
2017-01
Volume
1860
Issue
1
Pages
140-148
ISSN
1874-9399 (ISSN-L)
OpenAlex
W2510741342
Cited by
140
References
110
Citations by year
2026: 3 · 2025: 6 · 2024: 9 · 2023: 11 · 2022: 17 · 2021: 18 · 2020: 14 · 2019: 24 · 2018: 16 · 2017: 19 · 2016: 1
FWCI
1.81
Type
journal article
Language
en
Open access
Locations
  • Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (GM077590, T32GM007757)
  • National Institute of General Medical Sciences (F31GM116346)
  • Gordon and Betty Moore Foundation
  • Howard Hughes Medical Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
RNA-directed DNA methylation, RNA polymerase IV, RNA polymerase V, RNA polymerase II, RDR2, small RNA, transposon silencing, cytosine methylation, Arabidopsis thaliana, non-coding RNA, genome defense
MeSH terms
Amino Acid Sequence, Chromatin, DNA-Directed RNA Polymerases, Arabidopsis, Gene Expression Regulation, Plant, RNA, Plant, DNA Methylation, Arabidopsis Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review