Sequence encoding the GAL4(DBD)::nMagHigh1 hemidriver (and p10 3'UTR) has been inserted into the attP site present in TI{TI}wgKO, resulting in the hemidriver being expressed under the control of endogenous wg regulatory sequences. A loxP site and a Disc\RFPmCherry.3xP3 marker have also been inserted, downstream of the hemidriver sequence.