FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term primary pigment cell precursor ID (Ontology) FBbt:00007370 (Fly Anatomy)
Definition Precursor of the primary pigment cells of the retina. From 10 hours after puparium formation, these cells are part of an unstructured pool of undifferentiated cells surrounding each developing ommatidial core. Around 20-23 hours APF, the primary pigment cell precursors leave this pool and become part of the ommatidia.[ FlyBase:FBrf0103328 ]
Comment DISAMBIGUATION: The term interommatidial precursor cell is sometimes used to refer to precursors of primary pigment cells as well as secondary and tertiary pigment cells (e.g. Larson et al., 2008), even though primary pigment cells are not interommatidial cells. This is not the case here.
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
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 Alleles Genes Insertions
 primary pigment cell precursor (all annotations which use CV term, excluding "NOT" statements)       1      2      1
     primary pigment cell precursor | pupal stage P6 | increased number       1       --       --
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developing material anatomical entity__
somatic cell___________________________|
                                       somatic precursor cell
                                        |__primary pigment cell precursor  4 rec.
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