FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term stage S9 oocyte ID (Ontology) FBbt:00005269 (Fly Anatomy)
Definition Oocyte during stage 9 of oogenesis. Its nucleus is located adjacent to the dorsal follicle cell-nurse cell border and the karyosome expands into individual chromosomes for a short period of RNA synthesis (Mahowald and Kambysellis, 1980). The oocyte has grown to around 1/3 of the size of the egg chamber (Mahowald and Kambysellis, 1980). Follicle cells begin to secrete vitelline membrane components, which accumulate around the oocyte as vitelline bodies (Spradling, 1993).[ FlyBase:FBrf0021038 FlyBase:FBrf0034074 FlyBase:FBrf0064777 ]
Comment
Links to External Ontologies
Annotations
Records annotated with this term OR any of its CHILD TERMS
No relevant records available
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
No relevant statements available
Spanning Tree (Parents/Children)
Only view relationship:
  female germline cell
   |__oocyte
       |__stage S9 oocyte
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a oocyte
Develops from stage S8 oocyte
Part of
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts