Fig. 11. Characteristics of lineage 9. (A) Ventral view of the projection of MARCM clones of lineage 9 in the T2 and T3 neuromeres. (B) Lineage 9 clone from A1. (C) A thick section projection of confocal slices showing the ventral commissures in T3-A3. In T3, the bundle is the thinnest of the four paired bundles that constitute the aV commissure; it is the only aV bundle that is found in the abdominal segments. (D-F) Thick section projections showing the relationship of the neurite bundles from lineage 9 to features of the Neurotactin scaffold (red) in intermediate (D,E) and ventral (F) neuropils. Diagrams as in Fig. 2. Commissure abbreviations as in Fig. 1.