FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult olfactory receptor neuron Or19 ID (Ontology) FBbt:00067018 (Fly Anatomy)
Definition Adult olfactory receptor neuron (ORN) that expresses Or19a and Or19b (Benton et al., 2025). Its dendrite transduces signals from antennal intermediate sensillum ai3 and it responds to terpenes (Benton et al., 2025). It innervates the antennal lobe glomerulus DC1 bilaterally, fasciculating with the antennal lobe commissure (Kaur et al., 2019). It develops from an Nba precursor (Benton et al., 2025). There are around 20 of these cells on each side (Grabe et al., 2016; Benton et al., 2025).[ FlyBase:FBrf0187305 FlyBase:FBrf0224383 FlyBase:FBrf0229748 FlyBase:FBrf0233453 FlyBase:FBrf0243918 FlyBase:FBrf0262710 ]
Also Known As "adult ORN Or19" ; "odorant receptor neuron Or19" ; "ORN (Or19a/b)" (for all, see Synonyms field below)
Comment
Links to External Ontologies
VFB:FBbt_00067018
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       3
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 adult olfactory receptor neuron Or19 (all annotations which use CV term, excluding "NOT" statements)       5      2      2      5
     adult olfactory receptor neuron Or19 | decreased number       1       --       1       --
Spanning Tree (Parents/Children)
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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 Or19  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
Secondary IDs
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DoOR:Or19a
DoOR:Or19b
FlyBrain_NDB:10394
VFB:FBbt_00067018