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 Or42b ID (Ontology) FBbt:00067046 (Fly Anatomy)
Definition Adult olfactory receptor neuron (ORN) that expresses Or42b (Benton et al., 2025). Its axon innervates antennal lobe glomerulus DM1, bilaterally (Benton et al., 2025). Its dendrite transduces signals from antennal basiconic sensillum ab1 and it responds to esters (Benton et al., 2025). It develops from an Nba precursor (Benton et al., 2025). There are approximately 30-40 of these cells on each side (Grabe et al., 2016; Benton et al., 2025).[ FlyBase:FBrf0187305 FlyBase:FBrf0233453 FlyBase:FBrf0262710 ]
Also Known As "adult odorant receptor neuron Or42b" ; "adult ORN (Or42b)" ; "adult ORN ab1A" (for all, see Synonyms field below)
Comment
Links to External Ontologies
VFB:FBbt_00067046
Annotations
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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 Alleles Genes Constructs
 adult olfactory receptor neuron Or42b (all annotations which use CV term, excluding "NOT" statements)       3      1      4
Spanning Tree (Parents/Children)
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eo neuron
 |__antennal olfactory receptor neuron of basiconic sensillum__
adult antennal olfactory receptor neuron                       |
 |__antennal olfactory receptor neuron of basiconic sensillum__|
adult antennal lobe receptor neuron                            |
 |__bilateral antennal lobe receptor neuron____________________|
                                                               adult olfactory receptor neuron Or42b  8 rec.
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Is a antennal olfactory receptor neuron of basiconic sensillum
bilateral antennal lobe receptor neuron
Develops from antennal olfactory receptor neuron precursor Nba
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Synonyms
  • "adult odorant receptor neuron Or42b" EXACT
    "adult ORN (Or42b)" EXACT
    "adult ORN ab1A" EXACT[ FlyBase:FBrf0208960 ]
    "adult ORN Or42b" EXACT
    "odorant receptor neuron DM1" EXACT
    "ORN_DM1" EXACT VFB_SYMBOL
Secondary IDs
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DoOR:Or42b
FlyBrain_NDB:10401
VFB:FBbt_00067046