Fig. 5.

Major fascicle systems of the adult Drosophila brain. ((A)–(D)) Z-projections of contiguous confocal sections of adult brains labeled with BP104 (green) and N-Cad (purple in right hemisphere; white in left hemisphere). Z-projections represent brain slices of 10–16 μm thickness at four different antero-posteror levels ((A), anterior optic tubercle AOTU and mushroom body lobes MB; (B) ellipsoid body EB; (C) fan-shaped body FB and great commissure GC; (D) lateral bend of antennal lobe tract, posterior to central complex mALT). The left hemisphere is a merged z-projection of BP104 (to label the major fascicles) and N-Cad (to label the neuropil compartments). The major fascicles are annotated on the left half of brain hemispheres containing the merged image. Neuropil compartments are annotated on the right brain hemisphere. For a complete list of abbreviations for compartments and fascicles, see Table 2 ((E)–(F)). Digital three-dimensional models of adult brain hemispheres viewed from dorsally (E) and ventrally (F), showing pattern of major fascicles (modified from Pereanu et al., 2010). Scale bar: 50 μm ((A)–(D); (E) and (F)).