Identifying axon guidance defects in the embryonic zebrafish brain.
@article{Devine2003IdentifyingAG,
title={Identifying axon guidance defects in the embryonic zebrafish brain.},
author={Christine A. Devine and B. Key},
journal={Methods in cell science : an official journal of the Society for In Vitro Biology},
year={2003},
volume={25 1-2},
pages={
33-7
}
}The method described here outlines a simple protocol to investigate the in vivo function of axon guidance molecules during the development of the embryonic zebrafish brain. By 24 hours postfertilization, a simple scaffold of axon tracts and commissures can be visualised in the brain using acetylated alpha-tubulin, a panaxonal marker that stains all axons. The highly stereotypical trajectory of axons in the embryonic zebrafish brain provides an ideal system in which to study the molecular…
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References
SHOWING 1-10 OF 21 REFERENCES
Development of axon pathways in the zebrafish central nervous system.
- BiologyThe International journal of developmental biology
- 2002
The morphology and development of the earliest axon pathways in the embryonic zebrafish central nervous system are described and the major questions that remain to be addressed with regard to axon guidance are highlighted.
The development of a simple scaffold of axon tracts in the brain of the embryonic zebrafish, Brachydanio rerio.
- BiologyDevelopment
- 1990
At 1 day, the zebrafish brain is impressively simple, with a few small, well-separated tracts but by 2 days the brain is already considerably more complex, supporting the notion that other axons play a crucial role in the guidance of early central nervous system (CNS).
Cellular and molecular bases of axonal pathfinding during embryogenesis of the fish central nervous system.
- BiologyJournal of neurobiology
- 1999
The detailed analysis of pathfinding at the level of individual axons demonstrates that growing axons chose their paths unerringly, and members of most classes of recognition molecules have been identified in fish.
Expression and role of Roundabout‐1 in embryonic Xenopus forebrain
- BiologyDevelopmental dynamics : an official publication of the American Association of Anatomists
- 2002
The identification and expression of a Xenopus Robo1 orthologue that is highly homologous to mammalian Robo1 is reported, which implicate Robo1 in both neuronal differentiation and axon guidance in embryonic vertebrate forebrain.
Pathway selection by growth cones of identified motoneurones in live zebra fish embryos
- BiologyNature
- 1986
It is concluded that the highly stereotyped pattern of innerva-tion seen in the adult is due to initial selection of the appropriate pathway, rather than elimination of incorrect projections.
Growth cone and dendrite dynamics in zebrafish embryos: early events in synaptogenesis imaged in vivo
- BiologyNature Neuroscience
- 2000
We used time-lapse fluorescence microscopy to observe the growth of Mauthner cell axons and their postsynaptic targets, the primary motor neurons, in spinal cords of developing zebrafish embryos.…
Zebrafish deadly seven functions in neurogenesis.
- BiologyDevelopmental biology
- 2001
It is found that overexpressing an activated form of Notch decreased the number of Mauthner cells in des mutants indicating that des functions via the Notch-Delta signaling pathway to control the production of specific cell types within the central and peripheral nervous systems.
Guidance Cues at the Drosophila CNS Midline: Identification and Characterization of Two Drosophila Netrin/UNC-6 Homologs
- BiologyNeuron
- 1996
Role of hlx1 in zebrafish brain morphogenesis.
- Biology, ChemistryThe International journal of developmental biology
- 2002
The results indicate multiple roles for hlx1 during zebrafish brain morphogenesis, including a reduction in the size of forebrain neuronal clusters as well as abnormal axon pathfinding and select disruptions to the expression pattern of the neurogenic gene Zash1B in specific rhombomeres.
Stages of embryonic development of the zebrafish
- BiologyDevelopmental dynamics : an official publication of the American Association of Anatomists
- 1995
A series of stages for development of the embryo of the zebrafish, Danio (Brachydanio) rerio is described, providing for flexibility and continued evolution of the staging series as the authors learn more about development in this species.

