Fig. 5. Repeated overexpression of GAL4-HP1 results in the displacement of SUUR from chromosomes. SUUR (green) and HP1 (red) localization patterns were detected by immunofluorescence staining of polytene chromosomes from control (non-heat-shocked, A-C) and experimental (heat-shocked, D-F) hs-GAL4-HP1/Wink-D transheterozygous larvae.