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Hox genes and brain development in Drosophila

Reichert, H. and Bello, B.. (2010) Hox genes and brain development in Drosophila. Advances in experimental medicine and biology, Vol. 689. pp. 145-153.

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Official URL: http://edoc.unibas.ch/dok/A5842452

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Abstract

Hox genes are prominently expressed in the developing brain and ventral ganglia of Drosophila. In the embryonic brain, the Hox genes labial and Deformed are essential for the establishment of regionalized neuronal identity; in their absence cells are generated in the brain but fail to acquire appropriate neuronal features. Genetic analyses reveal that Hox proteins are largely equivalent in their action in embryonic brain development and that their expression is under the control of cross-regulatory interactions among Hox genes that are similar to those found in embryogenesis of trunk segments. Hox genes have a different role in postembryonic brain development. During the larval phase of CNS development, reactivation of specific Hox genes terminates neural proliferation by induction of apoptotic cell death in neural stem cell-like progenitors called neuroblasts. This reactivation process is tightly controlled by epigenetic mechanisms requiring the Polycomb group of genes. Many features of Hox gene action in Drosophila brain development are evolutionarily conserved and are manifest in brain development of vertebrates.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Molecular Zoology (Reichert)
UniBasel Contributors:Reichert, Heinrich
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:0065-2598
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 Sep 2012 07:17
Deposited On:14 Sep 2012 06:37

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