Insertion of a P{GS} element at +617bp (relative to the transcription start site).
visible, with Scer\GAL4dpp.blk1
wing vein, with Scer\GAL4dpp.blk1
Flies expressing P{GS}exGS2228 under the control of Scer\GAL4dpp.blk1 have fused wing veins.