Table 3.

Sema-1a is required in the glial interhemispheric ring.

	# hemispheres	Lobe	% overextension
UAS-RNAi-Sema-1a; 442-Gal4	18	α	0
		β	100
UAS-Sema-1a; 442-Gal4	20	α	0
		β	100
UAS-Sema-1aΔcyt1; 442-Gal4	20	α	0
		β	0
UAS-RNAi-PlexA; 442-Gal4	26	α	0
		β	0
UAS-RNAi-PlexB; 442-Gal4	20	α	0
		β	0