When Wnt4Scer\UAS.cSa is driven in clones (when driven by Scer\GAL4αTub84B.PC) in the adult abdomen no alterations in polarity or other effects in the abdomen are seen.
Wnt4Scer\UAS.cGa animals produce ectopic denticles in the ventral epidermis, when overexpressed with Scer\GAL4arm.PS, and the flies die as pharate adults, and show several defects in the wing when crossed to Scer\GAL4ptc-559.1.
Wnt4UAS.cSa/Scer\GAL4btl.PS is a non-suppressor of tracheal dorsal trunk primordium phenotype of Wnt2unspecified, wgl-17
Wnt4UAS.cSa/Scer\GAL4wg.PM is a non-suppressor of tracheal dorsal trunk primordium phenotype of Wnt2unspecified, wgl-17
Clones of cells in the anterior compartment of the dorsal epidermis of the adult abdomen (in the tergite) that are expressing Wnt4Scer\UAS.cSa under the control of Scer\GAL4αTub84B.PL in a dsunspecified background do not change the cell polarity of cells surrounding the clone.
G. Struhl