FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term air sac primordium ID (Ontology) FBbt:00007477 (Fly Anatomy)
Definition Primordium of an air sac (a large, air filled sac of the adult tracheal system).[ FlyBase:FBrf0151893 ]
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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)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 air sac primordium (all annotations which use CV term, excluding "NOT" statements)
     air sac primordium | absent | larval stage
      --       --
     air sac primordium | cell non-autonomous | somatic clone | third instar larval stage
      --       --
     air sac primordium | larval stage
      --
     air sac primordium | larval stage | increased number
      --       --
     air sac primordium | somatic clone | third instar larval stage
      --       --
     air sac primordium | third instar larval stage
      --       --
     air sac primordium | third instar larval stage | heat sensitive
      --       --
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  developing material anatomical entity
   |__primordium
       |__air sac primordium  189 rec.
           |__air sac imaginal tracheoblast 28 rec.
           |   |__air sac primordium stalk cell(+)
           |   |__air sac primordium tip cell(+) 11 rec.
           |   |__air sac tracheoblast of dorsal air sac primordium(+) 27 rec.
           |__dorsal air sac primordium 107 rec.
               |__air sac tracheoblast of dorsal air sac primordium(+) 27 rec.
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