FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
CV Term Report
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General Information
Term FBbt:00003101 ID (Ontology) FBbt:00003101 (Fly Anatomy)
Definition Air filled epithelial sac of the adult tracheal system. These highly dilated trachea consist of thin epithelium with very thin chitinous lining, lacking `taenidia` (FBbt:00005045). Consequently they are highly flexible and can collapse or expand with changes in pressure around them.[ FlyBase:FBrf0007735 ]
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Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       5
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       5
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Constructs
 FBbt:00003101 (all annotations which use CV term, excluding "NOT" statements)       5      1      9
     FBbt:00003101 | FBdv:00005339 | FBcv:0000311       5       --       5
Spanning Tree (Parents/Children)
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FBbt:00005043
 |__FBbt:00003038__
FBbt:00007046      |
 |__FBbt:00003038__|
                   FBbt:00003101  28 rec.
                    |__FBbt:00003106 2 rec.
                    |__FBbt:00003109 2 rec.
                    |__FBbt:00003111 4 rec.
                    |__FBbt:00003113 3 rec.
                    |__FBbt:00003117 3 rec.
                    |__FBbt:00003118 2 rec.
                    |__FBbt:00003119 3 rec.
                    |__FBbt:00007132 11 rec.
                    |__FBbt:00007134 9 rec.
                        |__FBbt:00003102 9 rec.
                        |__FBbt:00003103 5 rec.
                        |__FBbt:00003104 3 rec.
                        |__FBbt:00003105 4 rec.
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Is a adult tracheal section
Develops from air sac primordium
Part of
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