Evidence map›Paper›PMID 26305942›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Subset of early radial glial progenitors that contribute to the development of callosal neurons is absent from avian brain.

Fernando García-Moreno, Zoltán Molnár

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

26 citing papers in PubMed, 51 citations in OpenAlex.

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  10. From Progenitors to Progeny: Shaping Striatal Circuit Development and Function.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Review
  11. A protocol forSTAR protocols · 2021
    Article
  12. Article
  13. The Ferret as a Model System for Neocortex Development and Evolution.Frontiers in cell and developmental biology · 2021
    Review
  14. Review
  15. Article
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  20. Update on forebrain evolution: From neurogenesis to thermogenesis.Seminars in cell & developmental biology · 2018
    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

2 authors at 1 institution in 1 country.

Fernando García-MorenoDepartment of Physiology, Anatomy, and Genetics, University of Oxford, Oxford, OX1 3QX, United Kingdom fernando.garcia-moreno@dpag.ox.ac.uk zoltan.molnar@dpag.ox.ac.uk.
Zoltán MolnárDepartment of Physiology, Anatomy, and Genetics, University of Oxford, Oxford, OX1 3QX, United Kingdom fernando.garcia-moreno@dpag.ox.ac.uk zoltan.molnar@dpag.ox.ac.uk.
University of Oxford · GB

Funding

Biotechnology and Biological Sciences Research CouncilMedical Research CouncilWellcome Trust
6 · The paper itself

Abstract

The classical view of mammalian cortical development suggests that pyramidal neurons are generated in a temporal sequence, with all radial glial cells (RGCs) contributing to both lower and upper neocortical layers. A recent opposing proposal suggests there is a subgroup of fate-restricted RGCs in the early neocortex, which generates only upper-layer neurons. Little is known about the existence of fate restriction of homologous progenitors in other vertebrate species. We investigated the lineage of selected Emx2+ [vertebrate homeobox gene related to Drosophila empty spiracles (ems)] RGCs in mouse neocortex and chick forebrain and found evidence for both sequential and fate-restricted programs only in mouse, indicating that these complementary populations coexist in the developing mammalian but not avian brain. Among a large population of sequentially programmed RGCs in the mouse brain, a subset of self-renewing progenitors lack neurogenic potential during the earliest phase of corticogenesis. After a considerable delay, these progenitors generate callosal upper-layer neurons and glia. On the other hand, we found no homologous delayed population in any sectors of the chick forebrain. This finding suggests that neurogenic delay of selected RGCs may be unique to mammals and possibly associated with the evolution of the corpus callosum.

Indexed as

AnimalsBrainChick EmbryoChickensCorpus CallosumEmpty Spiracles Homeobox ProteinsEpendymoglial CellsGreen Fluorescent ProteinsHomeodomain ProteinsLuminescent ProteinsMice, Inbred C57BLMice, TransgenicMicroscopy, ConfocalNeocortexNeural Stem CellsNeurogenesisEmpty Spiracles Homeobox ProteinsGreen Fluorescent ProteinsHomeodomain ProteinsLuminescent ProteinsRed Fluorescent ProteinTranscription Factorschickcortical developmentEmx2neocortexneurogenesis

Identifiers

PMID26305942
PMCPMC4568669
OpenAlexW2139043811

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.