Fig. 5. stat migration defects are evident prior to cell identity changes. (A-D) Confocal immunoflourescence images of two representative stat^ts/stat³⁹⁷; MA33 egg chambers kept at 18°C (A,B) or at non-permissive temperature for 1 hour (C,D). Singed staining (red) indicates the migrating border cells; the enhancer trap MA33 (green) is a marker for squamous follicle cell fate. Arrow indicates the border cell cluster. (E-H) Armadillo staining (red) indicates the border cells, and phalloidin (green) indicates all cells in wild-type (E,F) and stat^ts/stat¹⁶⁸¹ (G,H) egg chambers; anterior at the top. Scale bars: in A, 50 µm for A-D; in E, 10 µm for E-H.