FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term basal cylinder ID (Ontology) FBbt:00004518 (Fly Anatomy)
Definition The adult antennal segments basal to the arista. It includes antennal segments 4 and 5.[ FlyBase:FBrf0007734 FlyBase:FBrf0037077 ]
Also Known As"antennal segment 4+5 of Ferris" ; "basal capsule"
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 basal cylinder (all annotations which use CV term, excluding "NOT" statements)
     basal cylinder | somatic clone
      --       --       --
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antenna____________
appendage segment__|
                   segment of antenna
                    |__basal cylinder  48 rec.
                        |__fifth segment of antenna 9 rec.
                        |__fourth segment of antenna 12 rec.
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