Figure 5.

Appearance of the deep pseudopupil at 573 nm in the compound eye of living flies after saturating illumination with light of 450 nm. (a) ninaB^P315 homozygous flies raised on corn medium. (b) ninaB^P315 homozygous flies raised on corn medium supplemented with all-trans retinal. (c) ninaB^360d homozygous flies raised on corn medium. (d) ninaB^360d homozygous flies raised on corn medium supplemented with all-trans retinal. (e) Visualization of the deep pseudopupil in heterozygous flies. (f) Disappearance of the deep pseudopupil in heterozygous flies after shifting the visual pigments from the metarhodopsin (570-nm) to the rhodopsin (480-nm) state with orange light.