Evidence map›Paper›PMID 19758566›Full record

ArticleDevelopmental cell2009

A hierarchy of H3K4me3 and H3K27me3 acquisition in spatial gene regulation in Xenopus embryos.

Robert C Akkers, Simon J van Heeringen, Ulrike G Jacobi, Eva M Janssen-Megens, Kees-Jan Françoijs, Hendrik G Stunnenberg, Gert Jan C Veenstra

Open access · bronzeAbstract read
In one paragraph

Article in Developmental cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 130 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
130citing papers in PubMed, 1 pooled it
11.0field-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

130 citing papers in PubMed, 1 synthesis or guideline pooled it, 256 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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  7. Article
  8. Foxh1 is a locus-specific PRC2 recruiter governing germ layer silencing.bioRxiv : the preprint server for biology · 2025
    Article
  9. The rebirth of repressive chromatin during early vertebrate development.Annals of the New York Academy of Sciences · 2025
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Chromatin modifiers in neurodevelopment.Frontiers in molecular neuroscience · 2025
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Epigenomic dynamics of early Xenopus Embryos.Development, growth & differentiation · 2022
    Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Robert C AkkersDepartment of Molecular Biology, Faculty of Science, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen, 6500 HB Nijmegen, The Netherlands.
Simon J van Heeringen
Ulrike G Jacobi
Eva M Janssen-Megens
Kees-Jan Françoijs
Hendrik G Stunnenberg
Gert Jan C Veenstra
Radboud University Nijmegen · NL

Funding

Interrogating the Xenopus tropicalis genome using tile path microarraysR01HD054356 · NICHD · STICHTING RADBOUD UNIVERSITEIT · PI VEENSTRA, GERT JAN C. · 2007 to 2011
$1.1M
NICHD NIH HHS 5 R01 HD054356NICHD NIH HHS R01 HD054356
6 · The paper itself

Abstract

Epigenetic mechanisms set apart the active and inactive regions in the genome of multicellular organisms to produce distinct cell fates during embryogenesis. Here, we report on the epigenetic and transcriptome genome-wide maps of gastrula-stage Xenopus tropicalis embryos using massive parallel sequencing of cDNA (RNA-seq) and DNA obtained by chromatin immunoprecipitation (ChIP-seq) of histone H3 K4 and K27 trimethylation and RNA Polymerase II (RNAPII). These maps identify promoters and transcribed regions. Strikingly, genomic regions featuring opposing histone modifications are mostly transcribed, reflecting spatially regulated expression rather than bivalency as determined by expression profile analyses, sequential ChIP, and ChIP-seq on dissected embryos. Spatial differences in H3K27me3 deposition are predictive of localized gene expression. Moreover, the appearance of H3K4me3 coincides with zygotic gene activation, whereas H3K27me3 is predominantly deposited upon subsequent spatial restriction or repression of transcriptional regulators. These results reveal a hierarchy in the spatial control of zygotic gene activation.

Indexed as

Gene Expression Regulation, DevelopmentalAnimalsEpigenesis, GeneticGastrulaGenomeHistonesHumansMiceModels, BiologicalModels, GeneticNucleosomesOligonucleotide Array Sequence AnalysisTime FactorsXenopusXenopus laevisHistonesNucleosomes

Identifiers

PMID19758566
PMCPMC2746918
OpenAlexW1991819480

What OpenQuestion holds

Textmetadata
LicenceTDM
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.