Central role of gene cooption in neural crest evolution

A bona fide neural crest is a defining feature of vertebrate embryos. Protochordate gene expression patterns indicate that neural crest evolution coincided with the cooption of several transcriptional regulators to the neural plate border of the vertebrate ancestor. Recent cell labeling experiments...

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Bibliographic Details
Published in:Journal of experimental zoology. Part B, Molecular and developmental evolution Molecular and developmental evolution, 2005-07, Vol.304B (4), p.298-303
Main Authors: Meulemans, Daniel, Bronner-Fraser, Marianne
Format: Article
Language:English
Subjects:
Animals
Biological Evolution
Body Patterning - genetics
Chordata
Embryonic Development - genetics
Embryonic Development - physiology
Gene Expression Regulation, Developmental
Neural Crest - growth & development
Space life sciences
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Summary:A bona fide neural crest is a defining feature of vertebrate embryos. Protochordate gene expression patterns indicate that neural crest evolution coincided with the cooption of several transcriptional regulators to the neural plate border of the vertebrate ancestor. Recent cell labeling experiments in ascidians suggest that cells in this domain may have been migratory and thus displayed some neural crest cell‐like behavior. Taken together, these data suggest that the recruitment of new genetic pathways conferred novel developmental potentials upon the migratory neural tube cells of the prevertebrate chordate. J. Exp. Zool. (Mol. Dev. Evol.) 304B, 2005. © 2005 Wiley‐Liss, Inc.
ISSN:1552-5007
1552-5015
DOI:10.1002/jez.b.21047