FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term adult olfactory receptor neuron Ir31a ID (Ontology) FBbt:00110010 (Fly Anatomy)
Definition Adult olfactory receptor neuron that expresses the Ionotropic receptor (Ir) 31a (FBgn0051718) and the co-receptor Ir8a (Benton et al., 2025). It sends output to the antennal lobe glomerulus VL2 posterior compartment in both hemispheres, fasciculating with the antennal commissure (Silbering et al., 2011; Benton et al., 2025). Its dendrite transduces signals from the antennal coeloconic sensillum ac1 (Benton et al., 2009). There are approximately 10-15 of these per antenna (Benton et al., 2025).[ FlyBase:FBrf0206496 FlyBase:FBrf0215822 FlyBase:FBrf0233453 FlyBase:FBrf0262710 ]
Also Known As "ionotropic receptor neuron Ir31a" ; "Ir31a ac1" ; "ORN (VL2p)" (for all, see Synonyms field below)
Comment Nava Gonzales et al. (2021) - FBrf0250923 unsure whether this is ac1C or ac1D.
Links to External Ontologies
VFB:FBbt_00110010
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Insertions Constructs
 adult olfactory receptor neuron Ir31a (all annotations which use CV term, excluding "NOT" statements)
     adult olfactory receptor neuron Ir31a | somatic clone - tissue specific
      --
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eo neuron
 |__antennal olfactory receptor neuron of coeloconic sensillum__
adult antennal olfactory receptor neuron                        |
 |__antennal olfactory receptor neuron of coeloconic sensillum__|
adult antennal lobe receptor neuron                             |
 |__bilateral antennal lobe receptor neuron_____________________|
                                                                adult olfactory receptor neuron Ir31a  10 rec.
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Is a antennal olfactory receptor neuron of coeloconic sensillum
bilateral antennal lobe receptor neuron
Develops from antennal olfactory receptor neuron precursor Nab
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Synonyms
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DoOR:Ir31a
FlyBrain_NDB:10436
VFB:FBbt_00110010