FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term egg ID (Ontology) FBbt:00000034 (Fly Anatomy)
Definition Structure that develops from an oocyte once it has been released from the ovary by ovulation (Qazi et al., 2003). Ovulation triggers egg activation, which alters envelope permeability and causes the resumption of meiosis and translation (Qazi et al., 2003). Fertilization of the egg begins embryogenesis (Loppin et al., 2015).[ FlyBase:FBrf0158848 FlyBase:FBrf0229233 ]
Also Known As "ovum"
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Annotations
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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)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 egg (all annotations which use CV term, excluding "NOT" statements)
     egg | absent
      --       --
     egg | anterior
      --       --       --
     egg | anterior | dorsal
      --       --       --       --
     egg | clone of cells
      --       --
     egg | decreased number
      --       --
     egg | decreased number | conditional
      --       --
     egg | dorsal
      --       --
      --
     egg | germline clone
      --       --
     egg | germline clone | maternal effect
      --       --
      --
     egg | germline clone | non-rescuable maternal effect
      --       --       --       --
     egg | heat sensitive
      --       --       --
     egg | increased number
      --       --       --
     egg | maternal effect
      --       --
     egg | maternal effect | heat sensitive
      --       --       --
     egg | maternal effect | RU486 conditional
      --       --       --
     egg | maternal effect | somatic clone
      --       --
      --
     egg | maternal effect | ventral
      --       --
      --
     egg | somatic clone
      --       --       --
     egg | ventral
      --       --
      --
Spanning Tree (Parents/Children)
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  material anatomical entity
   |__anatomical structure
       |__egg  2344 rec.
           |__chorion 1117 rec.
           |   |__chorionic layer(+) 54 rec.
           |   |__chorionic specialization(+) 1106 rec.
           |__fertilized egg 20 rec.
           |__pole plasm 159 rec.
           |   |__pole granule 21 rec.
           |__pronucleus 66 rec.
           |   |__female pronucleus 6 rec.
           |   |__male pronucleus 6 rec.
           |   |__polar body nucleus 61 rec.
           |__unfertilized egg 46 rec.
           |__vitelline membrane 67 rec.
           |__yolk 65 rec.
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Is a anatomical structure
Develops from oocyte
Part of
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