FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term oogenesis stage S4 ID (Ontology) FBdv:00005264 (Fly Development)
Definition Oogenesis stage that begins when the nurse cells chromosomes become bulbous. Nurse cell chromosomes during this stage are polytene and reach a ploidy of 32C. The egg chamber is oval shaped.[ FlyBase:FBrf0021038 FlyBase:FBrf0034074 FlyBase:FBrf0064777 ]
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      47
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 Alleles Genes Insertions Constructs
 oogenesis stage S4 (all annotations which use CV term, excluding "NOT" statements)       --     112     47     18
     mitotic spindle | ectopic | oogenesis stage S4       4       --       --       --
     nurse cell | oogenesis stage S4       4       --       --       --
     oocyte | oogenesis stage S4       1       --       --       --
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  developmental stage
   |__oogenesis stage S4  177 rec.
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Is a developmental stage
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Substage of oogenesis
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