Figure 5. Peripheral motor nerves display stereotyped trajectories and innervation points at late embryonic stages.

Anti-Fas II staining in E16–17 embryos from (A) D. melanogaster; B) D. busckii; and (C) D. sechellia. Major peripheral nerves indicated by ISN, SN, and TN have similar organization and branch at similar positions in all species analyzed. Lateral view of dissected embryo fillets, anterior to left, dorsal is up. Scale bar: 100 µm.