Evidence map›Paper›PMID 37566662›Full record

ArticleScience advances2023

DDM1-mediated R-loop resolution and H2A.Z exclusion facilitates heterochromatin formation in Arabidopsis.

Jincong Zhou, Xue Lei, Sarfraz Shafiq, Weifeng Zhang, Qin Li, Kuan Li, Jiafu Zhu, Zhicheng Dong, Xin-Jian He, Qianwen Sun

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.2field-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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. IMPACTS OF DNA METHYLATION ON H2A.Z DEPOSITION AND NUCLEOSOME STABILITY.bioRxiv : the preprint server for biology · 2025
    Article
  11. DDM1 Maintains Heterochromatin by Regulating Histone Variants.International journal of molecular sciences · 2025
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Remodeling of perturbed chromatin can initiate de novo transcriptional and post-transcriptional silencing.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  17. Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Jincong ZhouCenter for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.ORCID 0000-0002-3868-4220
Xue LeiCenter for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.
Sarfraz ShafiqCenter for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.
Weifeng ZhangCenter for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.ORCID 0000-0002-5124-9856
Qin LiCenter for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.ORCID 0000-0002-3907-3245
Kuan LiCenter for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.ORCID 0000-0003-4294-6497
Jiafu ZhuSchool of Life Sciences, Guangzhou University, Guangzhou 510006, China.
Zhicheng DongSchool of Life Sciences, Guangzhou University, Guangzhou 510006, China.ORCID 0000-0003-2909-5720
Xin-Jian HeNational Institute of Biological Sciences, Beijing, China.
Qianwen SunCenter for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.ORCID 0000-0003-0111-5400
Center for Life Sciences · CNGuangzhou University · CNNational Institute of Biological Sciences, Beijing · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Programmed constitutive heterochromatin silencing is essential for eukaryotic genome regulation, yet the initial step of this process is ambiguous. A large proportion of R-loops (RNA:DNA hybrids) had been unexpectedly identified within Arabidopsis pericentromeric heterochromatin with unknown functions. Through a genome-wide R-loop profiling screen, we find that DDM1 (decrease in DNA methylation 1) is the primary restrictor of pericentromeric R-loops via its RNA:DNA helicase activity. Low levels of pericentromeric R-loops resolved by DDM1 cotranscriptionally can facilitate constitutive heterochromatin silencing. Furthermore, we demonstrate that DDM1 physically excludes histone H2A variant H2A.Z and promotes H2A.W deposition for faithful heterochromatin initiation soon after R-loop clearance. The dual functions of DDM1 in R-loop resolution and H2A.Z eviction are essential for sperm nuclei structure maintenance in mature pollen. Our work unravels the cotranscriptional R-loop resolution coupled with accurate H2A variants deposition is the primary step of constitutive heterochromatin silencing in Arabidopsis, which might be conserved across eukaryotes.

Indexed as

ArabidopsisArabidopsis ProteinsDNA-Binding ProteinsHeterochromatinHistonesR-Loop StructuresRNASeedsTranscription FactorsArabidopsis ProteinsAT1G52740 protein, ArabidopsisDDM1 protein, ArabidopsisDNA-Binding ProteinsHeterochromatinHistonesRNATranscription Factors

Identifiers

PMID37566662
PMCPMC10421056
OpenAlexW4385754570

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Registered trials

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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.