FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
CV Term Report
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General Information
Term FBbt:00004907 ID (Ontology) FBbt:00004907 (Fly Anatomy)
Definition Follicle cell at the anterior or posterior pole of the egg chamber. Initially they are found in clusters of 3-8 per pole, then excess cells undergo apoptosis during stages 2-5, leaving 2 per cluster.[ FlyBase:FBrf0205319 FlyBase:FBrf0247148 ]
Also Known As "polar cell"
Comment Can be identified by expression of upd1 (Rust et al., 2020).
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      78
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      29
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      11
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      43
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
 FBbt:00004907 (all annotations which use CV term, excluding "NOT" statements)      80     35     14     40     44
     FBbt:00004907 | FBcv:0000061       9       --       --       4      8
     FBbt:00004907 | FBcv:0000061 | FBcv:0000336       7       --       --       --       --
     FBbt:00004907 | FBcv:0000068      17       --       --       --       9
     FBbt:00004907 | FBcv:0000068 | FBcv:0000336       2       --       --       --       2
     FBbt:00004907 | FBcv:0000153 | FBcv:0000336       2       --       --       1       --
     FBbt:00004907 | FBcv:0000335       1       --       --       --       --
     FBbt:00004907 | FBcv:0000336      11       --       --       1      2
     FBbt:00004907 | FBcv:0000336 | FBcv:0000068       6       --       --       --       6
Spanning Tree (Parents/Children)
Only view relationship:
FBbt:00004894
 |__FBbt:00004904__
FBbt:00006030      |
 |__FBbt:00004904__|
FBbt:00058238      |
 |__FBbt:00004904__|
                   FBbt:00004907  213 rec.
                    |__FBbt:00048555
                    |__FBbt:00048556
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