FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term pole plasm ID (Ontology) FBbt:00004891 (Fly Anatomy)
Definition Specialized region of the posterior egg/embryo cytoplasm characterized by the presence of non-membrane limited electron dense bodies (polar granules) (Okada, 1998).[ FlyBase:FBrf0064781 FlyBase:FBrf0101973 ]
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Data ClassFieldDirect annotations
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 pole plasm (all annotations which use CV term, excluding "NOT" statements)
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embryo
 |__pre-blastoderm embryo__
egg chamber                |
 |__oocyte_________________|
anatomical structure       |
 |__egg____________________|
 |__cell component_________|
female germline cell       |
 |__oocyte_________________|
                           pole plasm  159 rec.
                            |__pole granule 21 rec.
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Is a cell component
Part of egg
oocyte
pre-blastoderm embryo
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