Evidence map›Paper›PMID 39854450›Full record

ArticleScience advances2025

An ancient apical patterning system sets the position of the forebrain in chordates.

Giacomo Gattoni, Daniel Keitley, Ashley Sawle, Elia Benito-Gutiérrez

Abstract read
In one paragraph

Article in Science advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–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

9 citing papers in PubMed.

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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.

Giacomo GattoniDepartment of Zoology, University of Cambridge, Cambridge, UK.ORCID 0000-0003-2314-9177
Daniel KeitleyDepartment of Zoology, University of Cambridge, Cambridge, UK.ORCID 0000-0002-6418-2849
Ashley SawleCancer Research UK, Cambridge Institute, Cambridge, UK.ORCID 0000-0002-2985-5059
Elia Benito-GutiérrezDepartment of Zoology, University of Cambridge, Cambridge, UK.ORCID 0000-0003-2435-0948

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The evolutionary origin of the vertebrate brain remains a major subject of debate, as its development from a dorsal tubular neuroepithelium is unique to chordates. To shed light on the evolutionary emergence of the vertebrate brain, we compared anterior neuroectoderm development across deuterostome species, using available single-cell datasets from sea urchin, amphioxus, and zebrafish embryos. We identified a conserved gene co-expression module, comparable to the anterior gene regulatory network (aGRN) controlling apical organ development in ambulacrarians, and spatially mapped it by multiplexed in situ hybridization to the developing retina and hypothalamus of chordates. Using functional approaches, we show Wnt signaling regulating this co-expression module in amphioxus, like the aGRN in echinoderms, and that its overactivation suppresses forebrain identity. This suggests a previously undescribed role for Wnt signaling in amphioxus in determining the position of the forebrain. We propose this Wnt-regulated gene co-expression module as a possible mechanism by which the brain set antero-dorsally early in chordate evolution.

Indexed as

Body PatterningChordataProsencephalonAnimalsBiological EvolutionGene Expression Regulation, DevelopmentalGene Regulatory NetworksLanceletsWnt Signaling PathwayZebrafish

Identifiers

PMID39854450
PMCPMC11758999

What OpenQuestion holds

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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.