Evidence map›Paper›PMID 9284051›Full record

ArticleGenes & development1997

Epigenetic silencing of RNA polymerase I transcription: a role for DNA methylation and histone modification in nucleolar dominance.

Z J Chen, C S Pikaard

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 158 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
158citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

158 citing papers in PubMed, 1 synthesis or guideline pooled it, 378 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Review
  6. LncRNAeLife · 2024
    Article
  7. Article
  8. Transcriptional Silencing of 35S rDNA inInternational journal of molecular sciences · 2024
    Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Unraveling Epigenetic Changes inPlants (Basel, Switzerland) · 2023
    Article
  14. Article
  15. Reaching for the off switch in nucleolar dominance.The Plant journal : for cell and molecular biology · 2023
    Article
  16. Review
  17. Unraveling the DNA Methylation in the rDNA Foci in Mutagen-InducedInternational journal of molecular sciences · 2022
    Article
  18. Review
  19. Introgression ofFrontiers in plant science · 2022
    Article
  20. Article

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

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

2 authors at 1 institution in 1 country.

Z J ChenBiology Department, Washington University, St. Louis, Missouri 63130, USA.
C S Pikaard
Washington University in St. Louis · US

Funding

Roles of RNA Polymerases IV and V in siRNA-mediated gene silencingR01GM077590 · NIGMS · WASHINGTON UNIVERSITY · PI PIKAARD, CRAIG STUART · 2006 to 2020
$3.5M
6 · The paper itself

Abstract

Nucleolar dominance is an epigenetic phenomenon that describes nucleolus formation around rRNA genes inherited from only one progenitor of an interspecific hybrid or allopolyploid. The phenomenon is widespread, occurring in plants, insects, amphibians, and mammals, yet its molecular basis remains unclear. We have demonstrated nucleolar dominance in three allotetraploids of the plant genus Brassica. In Brassica napus, accurately initiated pre-rRNA transcripts from one progenitor, Brassica rapa are detected readily, whereas transcripts from the approximately 3000 rRNA genes inherited from the other progenitor, Brassica oleracea, are undetectable. Nuclear run-on confirmed that dominance is controlled at the level of transcription. Growth of B. napus seedlings on 5-aza-2'-deoxycytidine to inhibit cytosine methylation caused the normally silent, under-dominant B. oleracea rRNA genes to become expressed to high levels. The histone deacetylase inhibitors sodium butyrate and trichostatin A also derepressed silent rRNA genes. These results reveal an enforcement mechanism for nucleolar dominance in which DNA methylation and histone modifications combine to regulate rRNA gene loci spanning tens of megabase pairs of DNA.

Indexed as

Transcription, GeneticAzacitidineBrassicaButyratesButyric AcidCell NucleolusCytosineDecitabineDNA MethylationEnzyme InhibitorsGene Expression Regulation, PlantGenes, DominantHistonesHydroxamic AcidsPolyploidyRNA Polymerase IAzacitidineButyratesButyric AcidCytosineDecitabineEnzyme InhibitorsHistonesHydroxamic AcidsRNA Polymerase IRNA, Ribosomaltrichostatin A

Identifiers

PMID9284051
PMCPMC316451
OpenAlexW2161939161

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.