FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term germarium cap cell ID (Ontology) FBbt:00004868 (Fly Anatomy)
Definition Somatic cell found posterior to the terminal filament. There is a group of 2-6 cells which are usually positioned asymmetrically on one side of the germarium tip, capping the underlying germ line stem cells.[ FlyBase:FBrf0087119 FlyBase:FBrf0235707 ]
Comment They express en and strong LamC; unlike terminal filament cells they also have tj expression (Panchal et al., 2017).
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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
 germarium cap cell (all annotations which use CV term, excluding "NOT" statements)
     germarium cap cell | adult stage
      --       --
     germarium cap cell | adult stage | cell autonomous | somatic clone
      --       --       --       --
     germarium cap cell | adult stage | maternal effect
      --       --       --       --
     germarium cap cell | adult stage | progressive
      --       --
      --
     germarium cap cell | decreased number
      --       --       --
     germarium cap cell | ectopic
      --       --       --
     germarium cap cell | ectopic | heat sensitive
      --       --       --
     germarium cap cell | increased number
      --       --       --
     germarium cap cell | increased number | heat sensitive
      --       --       --
     germarium cap cell | prepupal stage
      --       --       --       --
     germarium cap cell | progressive
      --       --       --
     germarium cap cell | progressive | heat sensitive
      --       --       --
     germarium cap cell | progressive | somatic clone
      --       --       --       --
     germarium cap cell | somatic clone
      --       --
      --
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germarium
 |__germarium region 1_____________
ovariole                           |
 |__somatic cell of ovariole_______|
portion of tissue                  |
 |__germarium region 1_____________|
female-specific anatomical entity  |
 |__germarium region 1_____________|
 |__somatic cell of ovariole_______|
somatic cell                       |
 |__somatic cell of ovariole_______|
                                   germarium cap cell  176 rec.
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Is a somatic cell of ovariole
Develops from larval cap cell of ovary
Part of germarium region 1
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