FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term inner chorionic layer ID (Ontology) FBbt:00000039 (Fly Anatomy)
Definition The middle layer that envelops the oocyte and forms part of the eggshell. It surrounds a thin wax layer, which in turn envelops the vitelline membrane. The inner chorionic layer is 40-50nm wide and consists of 8-10 crystalline sublayers that appear as horizontal striations, parallel to the oocyte surface and spaced at approximately 5nm.[ FlyBase:FBrf0029042 FlyBase:FBrf0035166 ]
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Alleles (FBal)  PHENOTYPE_MANIFEST_IN       1
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 inner chorionic layer (all annotations which use CV term, excluding "NOT" statements)       1
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  acellular anatomical structure
   |__chorionic layer
       |__inner chorionic layer  1 rec.
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