Expression of B1022B1022 under the control of Scer\GAL4dpp.blk1 results in a lack of the anterior crossvein and occasional vein fusions in the submarginal cell.
Flies expressing B1022B1022 under the control of Scer\GAL4dpp.blk1 occasionally lack the anterior crossvein or have vein fusions in the submarginal cell.