A set of third chromosome mutant stocks derived by insertional mutagenesis using the P-element construct P{lacW}; most lines have a lethal or semi-lethal phenotype. The P{lacW} construct carries a w+mC mini-white visible marker, Ecol\lacZ enhancer trap sequences, and bacterial sequences that allow plasmid rescue (FBrf0049800).
EcollacZtrn-S064117 drives expression in a dynamic pattern in the eye disc; initially at the morphogenetic furrow of the eye, at a lower level in all cells immediately posterior to the morphogenetic furrow, then becoming restricted to R1, R6, and &7 photoreceptor cells.
Larval expression in the dorsal mesothoracic disc is excluded from the center of the wing pouch, in a pattern complementary to that of sal. Representative image can be seen in FBrf074525, Figure 4 K.