Fig. 3.

GDP-l-fucose is delivered intercellularly within an organ. (A) GFP labeling showing the UAS-GFP expression pattern along the A/P boundary of third-instar wing imaginal discs under the dpp-Gal4 driver, which was used in B and C. (B, C, and E) Wg expression along the D/V boundary of the third-instar wing imaginal discs (square brackets in B, C, and E). (B) Wing disc of a Gmd^H78 homozygote overexpressing UAS-Gmd along the A/P boundary. (C) Wing disc of a Gmer^SH homozygote overexpressing UAS-Gmer along the A/P boundary. (D) Expression pattern of UAS-GFP in third-instar wing imaginal discs (white arrow), under control of a btl-Gal4 driver. (E) Wing disc of a Gmd^H78 homozygote overexpressing Gmd driven by btl-Gal4. (Scale bar in A, 50 μm, applicable to A–E.)