FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term Bolwig organ primordium ID (Ontology) FBbt:00005830 (Fly Anatomy)
Definition Primordium of the embryo that gives rise to the larval Bolwig organ. It develops from the most posterior region of the visual primordium, remaining attached to the surface as the rest of the optic placode becomes internalized during stages 12-13 (Green et al., 1993). It consists of approximately 12 cells, which begin to differentiate into photoreceptors during stage 13 (Green et al., 1993). During stages 15-16, the photoreceptors move out of the epidermis and come to lie attached to the outer lining of the dorsal pouch (Green et al., 1993).[ FlyBase:FBrf0064481 FlyBase:FBrf0089570 FlyBase:FBrf0151275 FlyBase:FBrf0243080 ]
Also Known As "Bolwig's organ primordium" ; "larval eye primordium" ; "P1 BolOrg"
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       1
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 Bolwig organ primordium (all annotations which use CV term, excluding "NOT" statements)       1     27      1      1
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developing material anatomical entity
 |__primordium____________________
ectodermal derivative             |
 |__anterior ectoderm derivative__|
                                  Bolwig organ primordium  30 rec.
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Is a primordium
anterior ectoderm derivative
Develops from visual primordium
Part of
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Synonyms
  • "Bolwig's organ primordium" EXACT
    "larval eye primordium" EXACT[ FlyBase:FBrf0141490 ]
    "P1 BolOrg" EXACT
Secondary IDs
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UBERON:6005830