FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term antennal trichoid sensillum at4 ID (Ontology) FBbt:00067010 (Fly Anatomy)
Definition Olfactory trichoid sensillum of antennal segment 3 that houses the dendrites of ORNs Or47b and Or88a, with a subset additionally housing an ORN Or65a dendrite (Grabe et al., 2016; Gonzales et al., 2021). There are more of these sensilla in males than females (Grabe et al, 2016).[ FlyBase:FBrf0187305 FlyBase:FBrf0233453 FlyBase:FBrf0239032 FlyBase:FBrf0250923 ]
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VFB:FBbt_00067010
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       4
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       1
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Relevant FlyBase reports
 Alleles Insertions Constructs
 antennal trichoid sensillum at4 (all annotations which use CV term, excluding "NOT" statements)       4      4     10
     antennal trichoid sensillum at4 | increased number       3       --       --
Spanning Tree (Parents/Children)
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antennal segment 3 sense organ__
olfactory sensory organ_________|
trichoid sensillum______________|
adult antennal sensillum________|
                                trichoid sensillum of antennal segment 3
                                 |__antennal trichoid sensillum at4  21 rec.
                                     |__antennal trichoid sensillum T2 3 rec.
                                     |__antennal trichoid sensillum T3 3 rec.
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Is a trichoid sensillum of antennal segment 3
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VFB:FBbt_00067010