FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term fourth segment of antenna ID (Ontology) FBbt:00004516 (Fly Anatomy)
Definition A small ring at the base of the 5th segment, where it attaches to the 3rd segment.[ FlyBase:FBrf0007734 FlyBase:FBrf0037077 ]
Also Known As "antennal segment 4"
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       9
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       1
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Images Insertions Constructs
 fourth segment of antenna (all annotations which use CV term, excluding "NOT" statements)       9      1      1      1
Spanning Tree (Parents/Children)
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  segment of antenna
   |__basal cylinder
       |__fourth segment of antenna  12 rec.
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Is a basal cylinder
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https://www.ento.csiro.au/biology/drosophila/melanogaster.html?aristomere%201