Evidence map›Paper›PMID 17535112›Full record

ArticlePLoS biology2007

Setting the tempo in development: an investigation of the zebrafish somite clock mechanism.

François Giudicelli, Ertuğrul M Ozbudak, Gavin J Wright, Julian Lewis

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
4.8field-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

90 citing papers in PubMed, 194 citations in OpenAlex.

  1. Article
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  6. Nonreciprocal synchronization in embryonic oscillator ensembles.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. Article
  9. Oscillatory control of embryonic development.Development (Cambridge, England) · 2024
    Review
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  15. Review
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30 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

4 authors at 1 institution in 1 country.

François GiudicelliVertebrate Development Laboratory, Cancer Research UK London Research Institute, London, United Kingdom.
Ertuğrul M Ozbudak
Gavin J Wright
Julian Lewis
Cancer Research UK · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

The somites of the vertebrate embryo are clocked out sequentially from the presomitic mesoderm (PSM) at the tail end of the embryo. Formation of each somite corresponds to one cycle of oscillation of the somite segmentation clock--a system of genes whose expression switches on and off periodically in the cells of the PSM. We have previously proposed a simple mathematical model explaining how the oscillations, in zebrafish at least, may be generated by a delayed negative feedback loop in which the products of two Notch target genes, her1 and her7, directly inhibit their own transcription, as well as that of the gene for the Notch ligand DeltaC; Notch signalling via DeltaC keeps the oscillations of neighbouring cells in synchrony. Here we subject the model to quantitative tests. We show how to read temporal information from the spatial pattern of stripes of gene expression in the anterior PSM and in this way obtain values for the biosynthetic delays and molecular lifetimes on which the model critically depends. Using transgenic lines of zebrafish expressing her1 or her7 under heat-shock control, we confirm the regulatory relationships postulated by the model. From the timing of somite segmentation disturbances following a pulse of her7 misexpression, we deduce that although her7 continues to oscillate in the anterior half of the PSM, it governs the future somite segmentation behaviour of the cells only while they are in the posterior half. In general, the findings strongly support the mathematical model of how the somite clock works, but they do not exclude the possibility that other oscillator mechanisms may operate upstream from the her7/her1 oscillator or in parallel with it.

Indexed as

AnimalsAnimals, Genetically ModifiedBasic Helix-Loop-Helix ProteinsBiological ClocksGene Expression Regulation, DevelopmentalHeat-Shock ResponseIntracellular Signaling Peptides and ProteinsMembrane ProteinsSomitesTime FactorsTranscription FactorsTranscription, GeneticZebrafishZebrafish ProteinsBasic Helix-Loop-Helix Proteinsdelta proteinher1 protein, zebrafishHER7 protein, zebrafishIntracellular Signaling Peptides and ProteinsMembrane ProteinsTranscription FactorsZebrafish Proteins

Identifiers

PMID17535112
PMCPMC1877819
OpenAlexW1987523774

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.