Fig. 6. Heat-shock ectopic expression of cdc-25.1 causes entry into S phase in the intestinal cells. Posterior intestinal cells of adult hermaphrodites expressing the S-phase reporter (A) cye-1::GFP or (B) rnr::GFP after heat shock-induced expression of mutant cdc-25.1. (C) Posterior intestinal cells of adult hermaphrodites after heat shock. In C, animals harbor the S-phase reporter transgene cye-1::GFP and the empty heat-shock vector. Arrows indicate intestinal nuclei expressing the S-phase reporters. Scale bar: 10 µm. Anterior is leftwards.