Avic\GFPGr66a.3x.IRES.2x is expressed in four gustatory receptor neurons of the terminal organ, which co-express Scer\GAL4sano, a marker for salt-responsive neurons. Expression is also driven in two terminal organ neurons of the dorsal organ ganglion.
Avic\GFPGr66a.3x.IRES.2x is expressed in gustatory receptor neurons of the dorsal and ventral the larval pharyngeal sense organ projecting to the embryonic/larval subesophageal ganglion.
Avic\GFPGr66a.3x.IRES.2x labels the bitter-sensing neurons (L2 GRN) of the taste bristles of the proboscis. Neurons labeled with Avic\GFPGr66a.3x.IRES.2x do not overlap with expression of Scer\GAL4ppk28.PC, which labels the water-sensing neurons.
Avic\GFPGr66a.3x.IRES.2x is expressed in the bitter-sensitive gustatory receptor neurons of the labellar taste bristles of the proboscis. Expression of Avic\GFPGr66a.3x.IRES.2x in the proboscis is distinct from the expression of Scer\GAL4E409. The projection of the neurons labeled by Avic\GFPGr66a.3x.IRES.2x in the subesophageal ganglion does not overlap with the projections labeled by Scer\GAL4E409.