Deletion of the last 40 amino acids (after Y730) of bnl protein within P{UAS-bnl.HA-1.sfGFP-3}.
air sac primordium | larval stage, with Scer\GAL4NP2211
cytoneme | decreased number | larval stage, with Scer\GAL4NP2211
epithelial cell of wing disc, with Scer\GAL4NP2211