Reporter expression is detected oogenesis with particularly strong expression from stages 2 to 11. Expression is initially detected in all follicle cells. At stages 7-8, follicle cells over the oocyte stain more intensely and at stage 9, there is strong expression in a band of follicle cells at the boundary between the ooctye and the nurse cells and in the migrating follicle cells that cover the anterior two thirds of the oocyte. In stage 10-11, expression is localized to the centripetal follicle cells, the nurse cell-associated follicle cells, and the doral anterior follicle cells; in the latter, at stage 10A, expression in the columnar follicle cells becomes restricted to the region over the dorsal anterior of the oocyte. This pattern remains until stage 11, when two distinct subsets of stained follicle cells are defined. At stage 12, expression is localized to two discrete groups of dorsal anterior follicle cells on either side of the dorsal midline, which move anteriorly over the forming dorsal appendages as the oocyte develops (stage 13) but are now connected as one band covering the dorsal midline.