rn^tod mutants exhibit Or67a-expressing olfactory receptor neuron loss in the trichoid subtype at1 sensilla. The DA1 glomerulus targeted by these receptor neurons in the antennal lobe is missing.

rn^tod/rn^GAL4-5 mutants exhibit Or67a-expressing olfactory receptor neuron loss in the trichoid subtype at1 sensilla. The DA1 glomerulus targeted by these receptor neurons in the antennal lobe is missing.

rn^tod/rn^tot mutants exhibit Or67a-expressing olfactory receptor neuron loss in the trichoid subtype at1 and at3 sensilla. The DA1 glomerulus targeted by these receptor neurons in the antennal lobe is missing. There is an increase in the number of ORNs in the at4 sensilla.

rn^tod/rn^tot mutants exhibit rn-negative olfactory receptor neuron loss in the coeloconic subtype ac1 and ac4 sensilla. The ac2 sensilla expands into the antennal zones that are normally occupied by these sensilla.

rn^tod/rn^tot mutants exhibit rn-negative olfactory receptor neuron loss in the basiconic subtype ab5, ab7 and ab10 sensilla. The ab1 and ab9 sensilla show a slight increase in female mutants but not males.

The rn-positive ai1 sensilla is lost in rn^tot/rn^tot mutant flies.

Recordings of thre response of single antennal trichoid sensillae to 11-cis-vanyl-acetate (VA) indicate that tod¹ homozygotes lack T1 functional subtype of these sensillae. The overall number of trichoid sensilla on the antenna of these flies is about 30% less than wild-type and the number of large basiconic sensilla is that same as wild-type, suggesting that the missing T1 sensillae have not been transformed into other sensillum types.

amos³, rn^tod has basiconic sensillum phenotype

amos³, rn^tod has trichoid sensillum phenotype

Df(2L)M36F-S6/lz^g, rn^tod has basiconic sensillum phenotype

Df(2L)M36F-S6/lz^g, rn^tod has trichoid sensillum phenotype