Fig. 6. Notch signaling activates pros expression. The expression
of Pros protein (green) and neural-specific Elav protein (purple) are shown in
eye discs. Co-expression is seen as white images in the merged panels.
(A-A'') A wild-type eye disc from an animal raised at 25°C.
(B-B'') A Nts3/Y;
UAS-NECN/+; sev-GAL4/+ eye disc from an animal
raised at 25°C. (C-C'') A Lz-GAL4
UAS-H/UAS-H eye disc. (D-D'') A
sev-Nact/+ eye disc at a focal plane where only
photoreceptor cells are visible. Two to three photoreceptors express Pros
protein in each ommatidium. (E-E'') A high magnification view of
one sev-Nact/+ ommatidium showing ectopic Pros in R1/R6
photoreceptors (arrows). (F-F'') A high magnification view of one
Lz-GAL4/+; UAS-Su(H)-VP16/+ ommatidium.
Ectopic Pros in R1/R6 is seen (arrows).