Fig 4. Arl8- and Rh1-positive compartments are largely non-overlapping in crb^P13A9 and w* under normal light conditions.

Longitudinal optical sections of w* (A) and crb^P13A9 (B) retinas of flies kept for 5 days in 12h light/12h dark, stained for Arl8 (red), and Rh1 (green). Note that the mutant retina contains more Rh1-positive vesicles, which are rarely positive for Arl8 (arrowheads). Scale bar: 5 μm.