FB2026_03 , released September 17, 2026
CV Term Report
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Term tracheal dorsal trunk anterior branch primordium ID (Ontology) FBbt:00000213 (Fly Anatomy)
Definition Anteriorly directed dorsal branch of the tracheal primordium. Fuses to the posterior branch of the dorsal trunk of the tracheal primordium of the next segment anterior to it during stage 14.[ FlyBase:FBrf0064787 ]
Also Known As"DTa"
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Data ClassFieldDirect annotations
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 tracheal dorsal trunk anterior branch primordium (all annotations which use CV term, excluding "NOT" statements)
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developing embryonic structure
 |__tracheal dorsal trunk primordium______________
 |__primary segmental tracheal branch primordium__|
late extended germ band embryo                    |
 |__primary segmental tracheal branch primordium__|
tracheal pit                                      |
 |__tracheal dorsal trunk primordium______________|
dorsal closure embryo                             |
 |__tracheal dorsal trunk primordium______________|
 |__primary segmental tracheal branch primordium__|
primordium                                        |
 |__primary segmental tracheal branch primordium__|
tracheal branch primordium                        |
 |__tracheal dorsal trunk primordium______________|
                                                  tracheal dorsal trunk anterior branch primordium  2 rec.
                                                   |__tracheal dorsal trunk anterior branch 2 primordium
                                                   |__tracheal dorsal trunk anterior branch 3 primordium
                                                   |__tracheal dorsal trunk anterior branch 4 primordium
                                                   |__tracheal dorsal trunk anterior branch 5 primordium
                                                   |__tracheal dorsal trunk anterior branch 6 primordium
                                                   |__tracheal dorsal trunk anterior branch 7 primordium
                                                   |__tracheal dorsal trunk anterior branch 8 primordium
                                                   |__tracheal dorsal trunk anterior branch 9 primordium
                                                   |__tracheal dorsal trunk anterior branch 10 primordium
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Is a primary segmental tracheal branch primordium
Part of tracheal dorsal trunk primordium
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