Figure 4. TPNs arborize near olfactory projection neurons.
(A) Co-labeling of TPN2 (green) and mushroom bodies (magenta) shows no overlap. (B) Co-labeling of TPN2 (green) and olfactory projection neurons (magenta) shows overlap in lateral horn (LH). Blue circles indicate antennal lobes (AL), yellow circles indicate LH. (C–E) Anterior to posterior sections of (B). White arrow points to lALT, running parallel to the TPN2 axon. (F) Co-labeling of TPN3 (green) and mushroom bodies (magenta) shows no overlap. (G) Co-labeling of TPN3 (green) and olfactory projection neurons (magenta) shows overlap in LH. (H–J) Anterior to posterior sections of (G). Scale bar, 50 μm.