Evidence map›Paper›PMID 35781738›Full record

ArticleThe Plant cell2022

Ovule siRNAs methylate protein-coding genes in trans.

Diane Burgess, Hiu Tung Chow, Jeffrey W Grover, Michael Freeling, Rebecca A Mosher

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
6.3field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Review
  3. TheProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. The plant siRNA landscape.The Plant cell · 2024
    Review
  15. Review
  16. Article
  17. Review
  18. DNA methylation dynamics during germline development.Journal of integrative plant biology · 2022
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Diane BurgessDepartment of Plant and Microbial Biology, The University of California, Berkeley, California 94720, USA.ORCID 0000-0002-2374-3080
Hiu Tung ChowThe School of Plant Sciences, The University of Arizona, Tucson, Arizona 85721, USA.ORCID 0000-0003-0493-6546
Jeffrey W GroverDepartment of Molecular & Cellular Biology, The University of Arizona, Tucson, Arizona 85721, USA.ORCID 0000-0001-6246-1767
Michael FreelingDepartment of Plant and Microbial Biology, The University of California, Berkeley, California 94720, USA.ORCID 0000-0002-7221-8725
Rebecca A MosherThe School of Plant Sciences, The University of Arizona, Tucson, Arizona 85721, USA.ORCID 0000-0003-2195-0825
University of Arizona · USUniversity of California, Berkeley · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Twenty-four-nucleotide (nt) small interfering RNAs (siRNAs) maintain asymmetric DNA methylation at thousands of euchromatic transposable elements in plant genomes in a process called RNA-directed DNA methylation (RdDM). RdDM is dispensable for growth and development in Arabidopsis thaliana, but is required for reproduction in other plants, such as Brassica rapa. The 24-nt siRNAs are abundant in maternal reproductive tissue, due largely to overwhelming expression from a few loci in the ovule and developing seed coat, termed siren loci. A recent study showed that 24-nt siRNAs produced in the anther tapetal tissue can methylate male meiocyte genes in trans. Here we show that in B. rapa, a similar process takes place in female tissue. siRNAs are produced from gene fragments embedded in some siren loci, and these siRNAs can trigger methylation in trans at related protein-coding genes. This trans-methylation is associated with silencing of some target genes and may be responsible for seed abortion in RdDM mutants. Furthermore, we demonstrate that a consensus sequence in at least two families of DNA transposons is associated with abundant siren expression, most likely through recruitment of CLASSY3, a putative chromatin remodeler. This research describes a mechanism whereby RdDM influences gene expression and sheds light on the role of RdDM during plant reproduction.

Indexed as

ArabidopsisArabidopsis ProteinsChromatinDNA MethylationDNA Transposable ElementsGene Expression Regulation, PlantNucleotidesOvuleRNA, PlantRNA, Small InterferingArabidopsis ProteinsChromatinDNA Transposable ElementsNucleotidesRNA, PlantRNA, Small Interfering

Identifiers

PMID35781738
PMCPMC9516104
OpenAlexW4283799384

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.