FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term first segment of antenna ID (Ontology) FBbt:00004513 (Fly Anatomy)
Definition Proximal-most segment of the antenna. It is a narrow ring which bears on its dorsal side a medial group of four and a single lateral bristle. Its pigmentation and hair pattern are similar to those of the prefrons.[ FlyBase:FBrf0007734 FlyBase:FBrf0031004 ]
Also Known As"antennal segment 1" ; "scape"
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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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Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 first segment of antenna (all annotations which use CV term, excluding "NOT" statements)
     first segment of antenna | somatic clone
      --       --       --       --
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antenna____________
appendage segment__|
                   segment of antenna
                    |__first segment of antenna  17 rec.
                        |__antennal segment 1 microchaeta
                            |__dorsal lateral bristle of antennal segment 1
                            |__dorsal medial bristle of antennal segment 1
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Is a segment of antenna
Develops from presumptive first segment of antenna
Part of
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https://www.ento.csiro.au/biology/drosophila/melanogaster.html?scape