Evidence map›Paper›PMID 20849572›Full record

ArticleEvoDevo2010

Conserved developmental expression of Fezf in chordates and Drosophila and the origin of the Zona Limitans Intrathalamica (ZLI) brain organizer.

Manuel Irimia, Cristina Piñeiro, Ignacio Maeso, José Luis Gómez-Skarmeta, Fernando Casares, Jordi Garcia-Fernàndez

Open access · goldAbstract read
In one paragraph

Article in EvoDevo, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

29 citing papers in PubMed, 61 citations in OpenAlex.

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  12. The origin and evolution of chordate nervous systems.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  13. Review
  14. Review
  15. Review
  16. Article
  17. Fez family transcription factors: controlling neurogenesis and cell fate in the developing mammalian nervous system.BioEssays : news and reviews in molecular, cellular and developmental biology · 2014
    Review
  18. Deep conservation of cis-regulatory elements in metazoans.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013
    Review
  19. Article
  20. Article
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

6 authors at 3 institutions in 1 country.

Manuel IrimiaDepartament de Genètica and Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Spain. mirimia@gmail.com.
Cristina Piñeiro
Ignacio Maeso
José Luis Gómez-Skarmeta
Fernando Casares
Jordi Garcia-Fernàndez
Universitat de Barcelona · ESUniversidad Pablo de Olavide · ESCentro Andaluz de Biología del Desarrollo · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe zona limitans intrathalamica (ZLI) and the isthmus organizer (IsO) are two major secondary organizers of vertebrate brain development. These organizers are located at the interface of the expression domains of key patterning genes (Fezf-Irx and Otx-Gbx, respectively). To gain insights into the evolutionary origin of the ZLI, we studied Fezf in bilaterians.

resultsIn this paper, we identified a conserved sequence motif (Fezf box) in all bilaterians. We report the expression pattern of Fezf in amphioxus and Drosophila and compare it with those of Gbx, Otx and Irx. We found that the relative expression patterns of these genes in vertebrates are fully conserved in amphioxus and flies, indicating that the genetic subdivisions defining the location of both secondary organizers in early vertebrate brain development were probably present in the last common ancestor of extant bilaterians. However, in contrast to vertebrates, we found that Irx-defective flies do not show an affected Fezf expression pattern.

conclusionsThe absence of expression of the corresponding morphogens from cells at these conserved genetic boundaries in invertebrates suggests that the organizing properties might have evolved specifically in the vertebrate lineage by the recruitment of key morphogens to these conserved genetic locations.

Identifiers

PMID20849572
PMCPMC2942887
OpenAlexW2166036695

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.