FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term sacculus ID (Ontology) FBbt:00004179 (Fly Anatomy)
Definition A three-chambered pit organ on antennal segment 3 that contains many sensilla. It extends ventrodorsally, with an opening to the posterior side of the antennal segment (Shanbhag et al., 1995).[ FlyBase:FBrf0084361 ]
Comment
Links to External Ontologies
VFB:FBbt_00004179
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       6
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 sacculus (all annotations which use CV term, excluding "NOT" statements)       7      8      4      3      4
     sacculus | ectopic       3       --       --       --       1
Spanning Tree (Parents/Children)
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external sensory organ
 |__external compound sense organ___
adult antennal sense organ          |
 |__antennal segment 3 sense organ__|
compound sense organ                |
 |__external compound sense organ___|
                                    sacculus  35 rec.
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Is a antennal segment 3 sense organ
external compound sense organ
Develops from presumptive sacculus
Part of
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Synonyms
Secondary IDs
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VFB:FBbt_00004179