Figure 2
From: The roles of EGF and Wnt signaling during patterning of the C. elegans Bγ/δ Equivalence Group
EGF signaling is necessary and sufficient for ceh-13 ::GFP expression in the Bγ/δ pair (A-B) Mid-L3. Wild-type ceh-13::GFP expression was only observed in Bγ. (C-D) Mid-L3 let-23(rf) males. ceh-13::GFP was not expressed in Bγ. Similar observations were made in sem-5(rf) and let-60(rf) mutants. (E-F) Mid-L3. Increased EGF signaling in heat-shocked HS::EGF males caused ectopic ceh-13::GFP expression in Bδ, in addition to wild-type Bγ expression. Similar observations were made in lin-15(lf) and let-60(gf) mutants. Left lateral views. Scale bar in B, 20 μm for A-F.