Evidence map›Paper›PMID 25465407›Full record

ArticleThe Plant cell2014

Accessible DNA and relative depletion of H3K9me2 at maize loci undergoing RNA-directed DNA methylation.

Jonathan I Gent, Thelma F Madzima, Rechien Bader, Matthew R Kent, Xiaoyu Zhang, Maike Stam, Karen M McGinnis, R Kelly Dawe

Open access · hybridAbstract read
In one paragraph

Article in The Plant cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
21.0field-weighted citation impact, top 1% 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

64 citing papers in PubMed, 107 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Annual review of plant biology · 2023
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. TheProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  19. Article
  20. The Genomics of Plant Satellite DNA.Progress in molecular and subcellular biology · 2021
    Review

4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Jonathan I GentDepartment of Plant Biology, University of Georgia, Athens, Georgia 30602.
Thelma F MadzimaDepartment of Biological Science, Florida State University, Tallahassee, Florida 32306.
Rechien BaderSwammerdam Institute for Life Sciences, Universiteit van Amsterdam, 1098 XH Amsterdam, The Netherlands.
Matthew R KentDepartment of Plant Biology, University of Georgia, Athens, Georgia 30602.
Xiaoyu ZhangDepartment of Plant Biology, University of Georgia, Athens, Georgia 30602.
Maike StamSwammerdam Institute for Life Sciences, Universiteit van Amsterdam, 1098 XH Amsterdam, The Netherlands.
Karen M McGinnisDepartment of Biological Science, Florida State University, Tallahassee, Florida 32306.
R Kelly DaweDepartment of Plant Biology, University of Georgia, Athens, Georgia 30602 Department of Genetics, University of Georgia, Athens, Georgia 30602.
University of Georgia · USFlorida State University · USUniversity of Amsterdam · NL

Funding

The role of RNA in centromere chromatinF32GM095223 · NIGMS · UNIVERSITY OF GEORGIA · PI GENT, JONATHAN ISAIAH · 2010 to 2012
$153k
NIGMS NIH HHS F32 GM095223NIGMS NIH HHS F32GM095223
6 · The paper itself

Abstract

RNA-directed DNA methylation (RdDM) in plants is a well-characterized example of RNA interference-related transcriptional gene silencing. To determine the relationships between RdDM and heterochromatin in the repeat-rich maize (Zea mays) genome, we performed whole-genome analyses of several heterochromatic features: dimethylation of lysine 9 and lysine 27 (H3K9me2 and H3K27me2), chromatin accessibility, DNA methylation, and small RNAs; we also analyzed two mutants that affect these processes, mediator of paramutation1 and zea methyltransferase2. The data revealed that the majority of the genome exists in a heterochromatic state defined by inaccessible chromatin that is marked by H3K9me2 and H3K27me2 but that lacks RdDM. The minority of the genome marked by RdDM was predominantly near genes, and its overall chromatin structure appeared more similar to euchromatin than to heterochromatin. These and other data indicate that the densely staining chromatin defined as heterochromatin differs fundamentally from RdDM-targeted chromatin. We propose that small interfering RNAs perform a specialized role in repressing transposons in accessible chromatin environments and that the bulk of heterochromatin is incompatible with small RNA production.

Indexed as

DNA MethylationCentromereChromatinDNA, PlantEuchromatinGene SilencingGenome, PlantHeterochromatinHistonesRNA, Small InterferingZea maysChromatinDNA, PlantEuchromatinHeterochromatinHistonesRNA, Small Interfering

Identifiers

PMID25465407
PMCPMC4311197
OpenAlexW2132121419

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.