PUBLICATION

Patterning, morphogenesis, and neurogenesis of zebrafish cranial sensory placodes

Authors
Aguillon, R., Blader, P., Batut, J.
ID
ZDB-PUB-160618-21
Date
2016
Source
Methods in cell biology   134: 33-67 (Chapter)
Registered Authors
Batut, Julie, Blader, Patrick
Keywords
Cranial placode, Neural border, Neurogenesis and morphogenesis, Olfactory placode, Otic placode, Patterning, Preplacodal region, Trigeminal placode
MeSH Terms
  • Animals
  • Body Patterning/genetics*
  • Cell Biology*
  • Embryonic Development/genetics*
  • Gene Expression Regulation, Developmental
  • Head/growth & development
  • Morphogenesis/genetics*
  • Neurogenesis/genetics
  • Zebrafish/genetics
  • Zebrafish/growth & development
PubMed
27312490 Full text @ Meth. Cell. Biol.
Abstract
Peripheral sensory organs and ganglia found in the vertebrate head arise during embryonic development from distinct ectodermal thickenings, called cranial sensory placodes (adenohypophyseal, olfactory, lens, trigeminal, epibranchial, and otic). A series of patterning events leads to the establishment of these placodes. Subsequently, these placodes undergo specific morphogenetic movements and cell-type specification in order to shape the final placodal derivatives and to produce differentiated cell types necessary for their function. In this chapter, we will focus on recent studies in the zebrafish that have advanced our understanding of cranial sensory placode development. We will summarize the signaling events and their molecular effectors guiding the formation of the so-called preplacodal region, and the subsequent subdivision of this region along the anteroposterior axis that gives rise to specific placode identities as well as those controlling morphogenesis and neurogenesis. Finally, we will highlight the approaches used in zebrafish that have been established to precisely label cell populations, to follow their development, and/or to characterize cell fates within a specific placode.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping