FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term collar ID (Ontology) FBbt:00000044 (Fly Anatomy)
Definition Specialization of the chorion that forms the border of the operculum. The operculum opens during hatching by splitting of the eggshell along the collar.
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       3
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       1
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Relevant FlyBase reports
 Alleles Insertions Constructs
 collar (all annotations which use CV term, excluding "NOT" statements)       3      1      1
     collar | maternal effect | somatic clone       1      1       --
Spanning Tree (Parents/Children)
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  acellular anatomical structure
   |__chorionic specialization
       |__collar  5 rec.
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Is a chorionic specialization
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