Allele: Dmel\B1112B1112
visible, with Scer\GAL4dpp.blk1
1st posterior cell, with Scer\GAL4dpp.blk1
anterior crossvein, with Scer\GAL4dpp.blk1
wing, with Scer\GAL4dpp.blk1
Expression of B1112B1112 under the control of Scer\GAL4dpp.blk1 results in a narrower 1st posterior cell than normal in the wing and the anterior crossvein is missing.