Evidence map›Paper›PMID 17726517›Full record

ArticlePloS one2007

Insights from amphioxus into the evolution of vertebrate cartilage.

Daniel Meulemans, Marianne Bronner-Fraser

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

48 citing papers in PubMed, 122 citations in OpenAlex.

  1. Shared competence forms the basis of gill arch and paired fin serial homology.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  7. Yamanaka Factors in the Budding TunicateFrontiers in cell and developmental biology · 2022
    Article
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  11. Review
  12. Evolvability of the vertebrate craniofacial skeleton.Seminars in cell & developmental biology · 2019
    Review
  13. Article
  14. Review
  15. Zoological letters · 2018
    Article
  16. Article
  17. Review
  18. Article
  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

2 authors at 1 institution in 1 country.

Daniel MeulemansDivision of Biology, California Institute of Technology, Pasadena, California, United States of America. dm@caltech.edu
Marianne Bronner-Fraser
California Institute of Technology · US

Funding

Evolutionary Origin of Vertebrate Neural Crest Gene NetworksR01DE017911 · NIDCR · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI BRONNER, MARIANNE · 2007 to 2011
$2.7M
NIDCR NIH HHS DE017911NIDCR NIH HHS R01 DE017911
6 · The paper itself

Abstract

Central to the story of vertebrate evolution is the origin of the vertebrate head, a problem difficult to approach using paleontology and comparative morphology due to a lack of unambiguous intermediate forms. Embryologically, much of the vertebrate head is derived from two ectodermal tissues, the neural crest and cranial placodes. Recent work in protochordates suggests the first chordates possessed migratory neural tube cells with some features of neural crest cells. However, it is unclear how and when these cells acquired the ability to form cellular cartilage, a cell type unique to vertebrates. It has been variously proposed that the neural crest acquired chondrogenic ability by recruiting proto-chondrogenic gene programs deployed in the neural tube, pharynx, and notochord. To test these hypotheses we examined the expression of 11 amphioxus orthologs of genes involved in neural crest chondrogenesis. Consistent with cellular cartilage as a vertebrate novelty, we find that no single amphioxus tissue co-expresses all or most of these genes. However, most are variously co-expressed in mesodermal derivatives. Our results suggest that neural crest-derived cartilage evolved by serial cooption of genes which functioned primitively in mesoderm.

Indexed as

Evolution, MolecularAnimalsCartilageMesodermNeural CrestVertebrates

Identifiers

PMID17726517
PMCPMC1950077
OpenAlexW2001589227

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.