FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term adult olfactory receptor neuron Or23a ID (Ontology) FBbt:00067033 (Fly Anatomy)
Definition Adult olfactory receptor neuron (ORN) that expresses Or23a (Benton et al., 2025). Its dendrite transduces signals from antennal intermediate sensillum ai2 (Benton et al., 2025). It innervates the antennal lobe glomerulus DA3 bilaterally, fasciculating with the antennal lobe commissure (Kaur et al., 2019). It develops from an Nba precursor (Benton et al., 2025). There are around 15 of these cells per side in females and 18 in males (Grabe et al., 2016).[ FlyBase:FBrf0187305 FlyBase:FBrf0224383 FlyBase:FBrf0229748 FlyBase:FBrf0233453 FlyBase:FBrf0243918 FlyBase:FBrf0262710 ]
Also Known As"adult ORN Or23a" ; "odorant receptor neuron Or23a" ; "ORN (Or23a)" (for all, see Synonyms field below)
CommentOlfactory stimulus unknown (Benton et al., 2025).
Links to External Ontologies
VFB:FBbt_00067033
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
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 Alleles Genes Insertions Constructs
 adult olfactory receptor neuron Or23a (all annotations which use CV term, excluding "NOT" statements)
     adult olfactory receptor neuron Or23a | cell non-autonomous | somatic clone
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eo neuron
 |__antennal olfactory receptor neuron of intermediate sensillum__
adult antennal olfactory receptor neuron                          |
 |__antennal olfactory receptor neuron of intermediate sensillum__|
adult antennal lobe receptor neuron                               |
 |__bilateral antennal lobe receptor neuron_______________________|
                                                                  adult olfactory receptor neuron Or23a  14 rec.
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Is a antennal olfactory receptor neuron of intermediate sensillum
bilateral antennal lobe receptor neuron
Develops from antennal olfactory receptor neuron precursor Nba
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Synonyms
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DoOR:Or23a
FlyBrain_NDB:10396
VFB:FBbt_00067033