FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term male germline cyst ID (Ontology) FBbt:00007136 (Fly Anatomy)
Definition Unit of spermatogenic differentiation consisting of a pair of cyst cells enclosing the developing germline cells.[ FlyBase:FBrf0064778 ]
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      31
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      19
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       3
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      16
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
 male germline cyst (all annotations which use CV term, excluding "NOT" statements)      31      9     22     18
     male germline cyst | adult stage       3       --       1      2
     male germline cyst | somatic clone | spermatogenesis       5       --       --       --
     male germline cyst | temperature conditional       2       --       --       1
     male germline cyst | third instar larval stage       5       --       --       3
Spanning Tree (Parents/Children)
Only view relationship: 
adult
 |__testis___________________________
gonad                                |
 |__testis___________________________|
male reproductive system             |
 |__testis___________________________|
male organism                        |
 |__male-specific anatomical entity__|
multi-tissue structure               |
 |__germline cyst____________________|
male-specific anatomical entity      |
 |__testis___________________________|
anatomical entity                    |
 |__male-specific anatomical entity__|
                                     male germline cyst  2288 rec.
                                      |__cyst cell of testis 229 rec.
                                      |   |__spermatid cyst cell(+) 30 rec.
                                      |   |__spermatocyte cyst cell(+) 6 rec.
                                      |   |__spermatogonial cyst cell 1 rec.
                                      |__spermatid cyst 1189 rec.
                                      |   |__spermatid(+) 1117 rec.
                                      |   |__spermatid cyst cell(+) 30 rec.
                                      |__spermatocyte cyst 1000 rec.
                                      |   |__primary spermatocyte cyst(+) 268 rec.
                                      |   |__secondary spermatocyte cyst(+) 35 rec.
                                      |   |__spermatocyte(+) 913 rec.
                                      |   |__spermatocyte cyst cell(+) 6 rec.
                                      |__spermatogonial cyst 419 rec.
                                          |__spermatogonial cyst cell 1 rec.
                                          |__spermatogonium(+) 367 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a germline cyst
male-specific anatomical entity
Part of testis
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts