ISSN:
1432-041X
Keywords:
Key words Ventral neuroectoderm
;
Cell shape
;
Achaete-scute complex
;
Drosophila
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract In the embryonic ventral neuroectoderm of Drosophila melanogaster the proneural genes achaete, scute, and lethal of scute are expressed in clusters of cells from which the neuroblasts delaminate in a stereotyped orthogonal array. Analyses of the ventral neuroectoderm before and during delamination of the first two populations of neuroblasts show that cells in all regions of proneural gene activity change their form prior to delamination. Furthermore, the form changes in the neuroectodermal cells of embryos lacking the achaete-scute complex, of embryos mutant for the neurogenic gene Delta, and of embryos overexpressing l’sc suggest that these genes are responsible for most of the morphological alterations observed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004270050303
