FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term ellipsoid body ID (Ontology) FBbt:00003678 (Fly Anatomy)
Definition A doughnut shaped synaptic neuropil domain of the central complex of the adult brain that lies just anterior to the fan-shaped body. Its hole (the ellipsoid body canal) points anteriorly and has an axon tract (the anterior bundle) running through it. It is divided into concentric layers and into 16 radial segments, 8 per hemisphere, numbered 1-8 from superior medial to inferior medial (Ito et al., 2014).[ FlyBase:FBrf0224194 ]
Also Known As "EB"
Comment
Links to External Ontologies
VFB:FBbt_00003678
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      94
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION     113
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      13
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      21
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 Full annotation statements 
Relevant FlyBase reports
 Alleles  Genes Insertions Constructs
 ellipsoid body (all annotations which use CV term, excluding "NOT" statements)     116      1     31    124   1939
     ellipsoid body | adult stage       9       --       --       2      2
     ellipsoid body | adult stage | male limited       1       --       --       --       --
     ellipsoid body | cell autonomous | somatic clone       2       --       --       --       2
     ellipsoid body | cell non-autonomous | somatic clone       1       --       --       --       --
     ellipsoid body | increased number       1       --       --       --       --
     ellipsoid body | somatic clone       4       --       --       --       --
Spanning Tree (Parents/Children)
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multi-cell-component structure__
synaptic neuropil_______________|
                                synaptic neuropil domain
                                 |__ellipsoid body  2220 rec.
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Is a synaptic neuropil domain
Develops from ellipsoid body primordium
Part of central body
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Synonyms
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VFB:FBbt_00003678