FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term antennal basiconic sensillum ab1 ID (Ontology) FBbt:00067012 (Fly Anatomy)
Definition A large olfactory basiconic sensillum of the antenna that houses the highly branched dendrites of four ORNs (Shanbhag et al., 1999), expressing Or42b, Or92a, Gr21a and Or10a (Grabe et al., 2016). It has a pore size of about 100 nm and a pore density of about 30 pores per square micrometer (Shanbhag et al., 1999). There are more of these sensilla in females than males (Grabe et al, 2016).[ FlyBase:FBrf0128642 FlyBase:FBrf0137067 FlyBase:FBrf0187305 FlyBase:FBrf0233453 ]
Also Known As"basiconic sensillum LB-II4" ; "sensillum basiconicum LB-II4"
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VFB:FBbt_00067012
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Genes Insertions Constructs
 antennal basiconic sensillum ab1 (all annotations which use CV term, excluding "NOT" statements)
     antennal basiconic sensillum ab1 | female limited | increased number
      --       --       --
     antennal basiconic sensillum ab1 | heat sensitive
      --       --
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basiconic sensillum of antennal segment 3__
olfactory sensory organ____________________|
                                           large basiconic sensillum of antennal segment 3
                                            |__antennal basiconic sensillum ab1  19 rec.
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Is a large basiconic sensillum of antennal segment 3
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VFB:FBbt_00067012