Fig. 6. Subcellular localization of GFP-tagged DIC-1 in embryonic and muscle cells by fluorescence microscopy. (A) Expression of GFP-tagged DIC-1 under the control of the hsp-16.2 promoter was induced by heat shock in N2 worms and spotted expression was observed in the cytoplasm of early embryos. (B) GFP-tagged DIC-1 was expressed under the control of the myo-3 promoter in N2 worms and expression was observed in the mitochondria of body-wall muscle cells. N, nucleus. Scale bars: 10 µm in A; 5 µm in B.