FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term gonadal sheath ID (Ontology) FBbt:00004859 (Fly Anatomy)
Definition Thin covering of the gonads, containing one or more epithelial layers and a muscle layer.[ FlyBase:FBrf0064777 ]
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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       2
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       8
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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 Genes Insertions Constructs
 gonadal sheath (all annotations which use CV term, excluding "NOT" statements)       2      3      8      3
Spanning Tree (Parents/Children)
Only view relationship: 
reproductive system
 |__gonad___________________
multicellular structure     |
 |__gonad___________________|
 |__multi-tissue structure__|
                            gonadal sheath  245 rec.
                             |__embryonic/larval gonadal sheath muscle cell
                             |__gonadal sheath epithelium 15 rec.
                             |   |__terminal epithelium of testis(+) 15 rec.
                             |__gonadal sheath muscle cell 58 rec.
                             |   |__ovarian sheath muscle cell 24 rec.
                             |   |__testis sheath muscle cell 33 rec.
                             |__ovarian sheath 59 rec.
                             |   |__inner layer of ovarian sheath
                             |   |__median layer of ovarian sheath(+) 37 rec.
                             |   |__outer layer of ovarian sheath
                             |   |__pedicel of ovarian sheath 1 rec.
                             |__testis sheath 174 rec.
                                 |__terminal epithelium of testis(+) 15 rec.
                                 |__testis sheath epithelial cell(+) 122 rec.
                                 |__testis sheath muscle cell 33 rec.
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Is a multi-tissue structure
Part of gonad
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