Figure 1.
GAL4 expression patterns of line C309 visualized by a GFP reporter gene. Distinct expression is observed in widespread regions of the adult brain (frontal view, A; posterior view, B) including α, β, and γ lobes of the MBs, the cell body layer of Kenyon cells (k), the pars intecerebralis (p), the AL (al), the optic lobes (ol), and the suboesophageal ganglion (sog). GFP expression is seen also in restricted sensory neurons in the labial palps (lp) (C), the tarsus (ta) (D), and the femur (fe)–trochanter (tr) junctions (E) of legs, the proximal radius of wings near the humeral cross-vein (hcv) (F), the first and third longitudinal wing veins (G and H), and the clasper (cl) of the male external genitalia (I) but not in the maxillary palp (mp) (C). [Scale bars: A, 50 μm (applied to B and C); D, 25 μm (applied to E–I).]