Fig. 2. The sma-3::gfp(C) expression stage and pattern in wild type. (A,C,D,F,H) Direct fluorescence from GFP; (B,E,G,I) Nomarski images of the same samples to their left. (A,B) The expression begins at the late embryo stage, 2.5-fold stage. (C) The gene expression pattern in L3 stage worms. At L4 stage, sma-3 is expressed in pharynx, head region hypodermis (D,E), intestine (F,G) and body hypodermis (H,I). The arrows indicate the hypodermal nuclei. The arrowhead indicates an intestinal nucleus.