Apical view of wing imaginal disc with homozygous Dl∆β1-2 clones (GFP negative) stained for Dl (red) and Cadherin (blue). (A') Z-projection of apical layers spanning a Dl∆β1-2 clone (GFP negative) located at the DV boundary. No change in apical localisation of Dl (red) and Cadherin (blue) is detected. Panels on the right show the Dl (grayscale) apical localisation on the wing imaginal disc. 