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.