Fig. 14. Characteristics of lineage 12 (NB 6-1). (A) Ventral view of the projection of a MARCM clone of lineage 12 in T3; the 12i bundles are absent. (B) Lineage 12 clone from T1. (C-F) Thick section projections showing the relationship of the neurite bundle from lineage 12 to features of the Neurotactin scaffold (red) in (C) dorsal, (D,E) intermediate and (F) ventral neuropils. Bundle 12c is the posterior bundle of the posterior ventral arch; the 12i bundle bifurcates with sub-bundles going to intermediate (12im) and dorsal (12id) positions. Numbers identify neurite bundles from other lineages. Diagrams as in Fig. 2. Commissure abbreviations as in Fig. 1.