APPROACHES TO IDENTIFY GENES INVOLVED IN DROSOPHILA EMBRYONIC CNS DEVELOPMENT

Many of the steps involved in formation of the Drosophila embryonic ce ntral nervous system (CNS) have been identified by both descriptive an d experimental studies. In this review we will describe the various ap proaches that have been used to identify molecules involved in CNS dev elopment and the advantages and disadvantages of each of them. Our dis cussion will by no means be exhaustive; but rather we will discuss our experiences with each approach and provide an overview of what has be en learned by using these methodologies. Finally, we will discuss meth ods that have been recently developed and how they are likely to provi de further insight into CNS development.