... cell identity and for this reason may lead to cell lineage defects and cell proliferation when mutated. †Author for correspondence (e-mail: [email protected] ) 9 1 2002 © 2002. 2002 Cell lineage Neuroblast fate Programmed cell death C. elegans...

... gene torso receptor tyrosine kinase neuroblast fate brain development transcription factor regulatory module Expression of the Drosophila tailless ( tll ) gene provides an instructive example of what has now become a generally accepted principle: many developmental regulatory genes...

..., engrailed , and even-skipped , used as markers of neuronal identity, has not provided evidence to support this hypothesis. * Author for correspondence © 1991 by Company of Biologists 1991 Drosophila lethal of scute gene antibodies neuroblast segregation neuroblast fate functional...