Fig. 3. Neuronal defects in zag-1(rh315). Wild-type (A,C,E,G,I,K) and
zag-1(rh315)-mutant animals (B,D,F,H,J,L) expressing
glr-1::GFP (A-F), unc-47::GFP (G-J) and unc-4::GFP
(K,L). zag-1(rh315) mutants have several axon outgrowth defects and
misexpression of neuronal markers. Arrowheads (B,F) indicate cells ectopically
expressing glr-1::GFP. Arrows (B) indicate lateral axons, (F) the PDB
axon, which has a characteristic and unique trajectory, (H) a missing anterior
commissure branch, and (J) a commissure growing on the wrong side. Ventral
aspects in (C,D,I,J), side views in all others. Anterior is to the left,
dorsal is up. Scale bars: 20 µm.