| Epithelial type, ingression, blastopore architecture and the evolution of chordate mesoderm morphogenesis. | |
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MedLine Citation:
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PMID: 18041055 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Chordate embryos show an evolutionary trend in the mechanisms they use to internalize presumptive mesoderm, relying predominantly on invagination in the basal chordates, varying combinations of involution and ingression in the anamniote vertebrates and reptiles, and predominantly on ingression in birds and mammals. This trend is associated with variations in epithelial type and changes in embryonic architecture as well as variations in the type of blastopore formed by an embryo. We also note the surprising conservation of the involution, during gastrulation, of at least a subset of the notochordal cells throughout the chordates, and suggest that this indicates a constraint on morphogenic evolution based on a functional linkage between architecture and patterning. Finally, we propose a model for the evolutionary transitions from gastrulation through a urodele amphibian-type blastopore to gastrulation through a primitive streak, as in chick or mouse. |
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Authors:
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David R Shook; Ray Keller |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Review |
Journal Detail:
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Title: Journal of experimental zoology. Part B, Molecular and developmental evolution Volume: 310 ISSN: 1552-5007 ISO Abbreviation: J. Exp. Zool. B Mol. Dev. Evol. Publication Date: 2008 Jan |
Date Detail:
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Created Date: 2007-12-24 Completed Date: 2008-03-06 Revised Date: 2009-10-05 |
Medline Journal Info:
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Nlm Unique ID: 101168228 Medline TA: J Exp Zool B Mol Dev Evol Country: United States |
Other Details:
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Languages: eng Pagination: 85-110 Citation Subset: IM |
Affiliation:
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Department of Biology, University of Virginia, Charlottesville, Virginia 22904-4328, USA. drs6j@virginia.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cell Differentiation Chordata / embryology* Epithelial Cells / cytology Evolution* Gastrula / cytology, embryology*, physiology Mesoderm / cytology, embryology* Morphogenesis Phylogeny |
| Grant Support | |
ID/Acronym/Agency:
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HD25594-18/HD/NICHD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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