FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term cyst progenitor cell ID (Ontology) FBbt:00004933 (Fly Anatomy)
Definition A somatic stem cell; Mother of cyst cells; Associated with the hub of the germinal center and with male germline stem cells.[ FlyBase:FBrf0064778 ]
Also Known As "CySC" ; "somatic cyst stem cell"
Comment
Links to External Ontologies
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     123
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       8
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      16
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      75
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
 cyst progenitor cell (all annotations which use CV term, excluding "NOT" statements)     125     21      4     24     78
     cyst progenitor cell | absent       5       --       --       --       4
     cyst progenitor cell | adult stage       8       --       --       --       6
     cyst progenitor cell | adult stage | ectopic | increased number       2       --       --       --       2
     cyst progenitor cell | adult stage | increased number       2       --       --       --       --
     cyst progenitor cell | adult stage | male       2       --       --       --       1
     cyst progenitor cell | adult stage | somatic clone       3       --       --       1       --
     cyst progenitor cell | clone of cells | increased number       1       --       --       --       1
     cyst progenitor cell | decreased number      16       --       --       --      13
     cyst progenitor cell | decreased number | heat sensitive       1       --       --       --       --
     cyst progenitor cell | decreased number | larval stage       1       --       --       --       --
     cyst progenitor cell | decreased number | somatic clone       6       --       --       5       --
     cyst progenitor cell | ectopic      18       --       --       --      19
     cyst progenitor cell | ectopic | increased number       2       --       --       --       3
     cyst progenitor cell | heat sensitive       2       --       --       1       --
     cyst progenitor cell | increased number      16       --       --       --      14
     cyst progenitor cell | increased number | heat sensitive       2       --       --       --       --
     cyst progenitor cell | male       1       --       --       1       --
     cyst progenitor cell | male limited | heat sensitive       1       --       --       --       1
     cyst progenitor cell | male | heat sensitive       2       --       --       1       --
     cyst progenitor cell | male | somatic clone       5       --       --       2       --
     cyst progenitor cell | somatic clone      14       --       --       3      4
     cyst progenitor cell | somatic clone | spermatogenesis       1       --       --       --       --
     cyst progenitor cell | spermatogenesis       8       --       --       --       7
Spanning Tree (Parents/Children)
Only view relationship:
somatic stem cell
 |__gonadal somatic stem cell____
male-specific anatomical entity  |
 |__somatic cell of testis_______|
somatic cell                     |
 |__somatic cell of testis_______|
                                 cyst progenitor cell  252 rec.
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Is a gonadal somatic stem cell
somatic cell of testis
Part of germinal proliferation center
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Synonyms
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