Figure 1

Drosophila neuron morphology. (A) Cartoon depiction of a bipolar vertebrate neuron emitting dendrites (red) from the cell body compared with a Drosophila central nervous system (CNS) neuron containing collateral dendrites. (B) The three morphologic categories of Drosophila lineages: proximal (PD) lineages contain a distinct domain of proximal branching physically separated from a set of terminal branches, distal (D) lineages have only distal branching, and continuous (C) lineages have wide domains of collateral branches along most of the axon fascicle. Lineages used in this study are indicated next to each lineage type