Figure 3.

A spectrum of GF and TTMn phenotypes was observed in the Netrin LOF (NetA^ΔB^Δ/>). A, B, GFs in the Netrin LOF mutants exhibited ectopic terminal branching (arrows). C, Some GFs ignored their synaptic partners and did not form terminals, but continued to project past the synaptic region. D, E, The TTMns of Netrin LOF mutants exhibited absent medial dendrites at the midline (left TTMn, asterisk). In the same animal, the other TTMn projected its medial dendrite toward the midline (right TTMn, arrow). Scale bar, 20 μm. Schematic illustrates giant fibers (magenta) and TTMns (green) in relation to prothoracic and mesothoracic neuromeres.