Figure 7. Rpb1 accumulates in cytoplasmic speckles in RPB2+/− CNOT3+/− trans- heterozygotes.
Nurse cells (with large polyploid nuclei surrounded by a layer of follicle cells) of Drosophila melanogaster of the indicated genotypes were stained with antibodies against Rpb1, or with DAPI, and the images were merged as indicated. The indicated section was enlarged for better visualization. Scale bar 30 µM.