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Vertebrate Cranial Placodes I. Embryonic Induction

Baker, Clare V. H. and Bronner-Fraser, Marianne (2001) Vertebrate Cranial Placodes I. Embryonic Induction. Developmental Biology, 232 (1). pp. 1-61. ISSN 0012-1606. https://resolver.caltech.edu/CaltechAUTHORS:20160311-072900446

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Abstract

Cranial placodes are focal regions of thickened ectoderm in the head of vertebrate embryos that give rise to a wide variety of cell types, including elements of the paired sense organs and neurons in cranial sensory ganglia. They are essential for the formation of much of the cranial sensory nervous system. Although relatively neglected today, interest in placodes has recently been reawakened with the isolation of molecular markers for different stages in their development. This has enabled a more finely tuned approach to the understanding of placode induction and development and in some cases has resulted in the isolation of inducing molecules for particular placodes. Both morphological and molecular data support the existence of a preplacodal domain within the cranial neural plate border region. Nonetheless, multiple tissues and molecules (where known) are involved in placode induction, and each individual placode is induced at different times by a different combination of these tissues, consistent with their diverse fates. Spatiotemporal changes in competence are also important in placode induction. Here, we have tried to provide a comprehensive review that synthesises the highlights of a century of classical experimental research, together with more modern evidence for the tissues and molecules involved in the induction of each placode.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1006/dbio.2001.0156DOIArticle
http://www.sciencedirect.com/science/article/pii/S0012160601901563PublisherArticle
ORCID:
AuthorORCID
Bronner-Fraser, Marianne0000-0003-4274-1862
Additional Information:© 2001 Academic Press. Received for publication September 11, 2000, Accepted 15 December 2000. We are grateful to Carole LaBonne, Andy Groves, and the anonymous reviewers for insightful comments on the manuscript and Andrea Streit, Gerhard Schlosser, and Tom Schilling for advice. Thanks to Andy Groves, Philippa Francis-West, Sally Moody, Gerhard Schlosser, and Paul Scotting for communicating results prior to publication.
Subject Keywords:placode; olfactory; hyophyseal; adenohypophysis; lens; trigeminal; lateral line; otic; epibranchial; zebrafish; Xenopus; axolotl; chick; mouse
Issue or Number:1
Record Number:CaltechAUTHORS:20160311-072900446
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160311-072900446
Official Citation:Clare V.H. Baker, Marianne Bronner-Fraser, Vertebrate Cranial Placodes I. Embryonic Induction, Developmental Biology, Volume 232, Issue 1, 1 April 2001, Pages 1-61, ISSN 0012-1606, http://dx.doi.org/10.1006/dbio.2001.0156. (http://www.sciencedirect.com/science/article/pii/S0012160601901563)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:65291
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:14 Mar 2016 20:31
Last Modified:03 Oct 2019 09:45

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