Immuno-staining of imaginal discs was according to standard protocols using Hairless anti-A (1:500, from guinea pig) [21 (link)], mouse anti-Cut (1:25) or anti-Wingless (1:25) (developed by G. Rubin and S.M. Cohen, respectively; obtained from the Developmental Studies Hybridoma Bank developed under the auspices of the NICHD and maintained by the University of Iowa, Dept of Biology, Iowa City, IA 52242) and rabbit anti-GFP (1:200, Santa Cruz Biotech, Dallas, USA). Goat secondary antibodies coupled to FITC, Cy3 or Cy5 were from Jackson Immuno-Research (Dianova, Hamburg, Germany). Tissue was mounted in Vectashield (Vector Labs, Eching, Germany), and examined using a BioRad MRC1024 confocal microscope and LaserSharp 2000TM software (Carl Zeiss, Jena, Germany).
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