FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term spermatogonial cyst ID (Ontology) FBbt:00007138 (Fly Anatomy)
Definition A male germline cyst consisting of 2 cyst cells and one primary spermatogonial cell. The latter is the mitotic founder of a cyst of secondary spermatogonia. Following 4 mitotic divisions, the spermatogonial cyst becomes a primary spermatocyte cyst.[ FlyBase:FBrf0064778 ]
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      40
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       5
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      21
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 spermatogonial cyst (all annotations which use CV term, excluding "NOT" statements)      40      4      5     22
     spermatogonial cyst | adult stage       3       --       --       3
     spermatogonial cyst | cell non-autonomous       2       --       --       1
     spermatogonial cyst | cell non-autonomous | somatic clone       3       --       2       --
     spermatogonial cyst | germline clone       1       --       --       --
     spermatogonial cyst | heat sensitive       1       --       --       1
     spermatogonial cyst | increased number       3       --       --       2
Spanning Tree (Parents/Children)
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germline cyst____________________
male-specific anatomical entity__|
                                 male germline cyst
                                  |__spermatogonial cyst  419 rec.
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