FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term cyst cell of testis ID (Ontology) FBbt:00004931 (Fly Anatomy)
Definition One of a pair of somatic cells that envelope each cyst of developing male germline cells.[ FlyBase:FBrf0064778 ]
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Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes  Insertions Constructs
 cyst cell of testis (all annotations which use CV term, excluding "NOT" statements)
     cyst cell of testis | absent
      --       --       --
     cyst cell of testis | adult stage | ectopic | increased number
      --       --       --
     cyst cell of testis | decreased number
      --       --       --
     cyst cell of testis | germline clone
      --       --       --       --
     cyst cell of testis | heat sensitive
      --       --
      --
     cyst cell of testis | increased number
      --       --       --
     cyst cell of testis | larval stage
      --       --
      --
     cyst cell of testis | male
      --       --       --       --
     cyst cell of testis | somatic clone
      --       --
      --
     cyst cell of testis | third instar larval stage
      --       --       --
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Vocabulary search
germline cyst
 |__male germline cyst___________
testis                           |
 |__somatic cell of testis_______|
 |__male germline cyst___________|
male-specific anatomical entity  |
 |__somatic cell of testis_______|
 |__male germline cyst___________|
somatic cell                     |
 |__somatic cell of testis_______|
                                 cyst cell of testis  235 rec.
                                  |__spermatid cyst cell 30 rec.
                                  |   |__head cyst cell 25 rec.
                                  |   |__tail cyst cell 6 rec.
                                  |__spermatocyte cyst cell 6 rec.
                                  |   |__primary spermatocyte cyst cell(+) 2 rec.
                                  |   |__secondary spermatocyte cyst cell
                                  |__spermatogonial cyst cell 1 rec.
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Is a somatic cell of testis
Develops from cyst progenitor cell
Part of male germline cyst
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Synonyms
  • "cyst cell" BROAD
Secondary IDs
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