FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term embryonic/larval tracheal dorsal trunk ID (Ontology) FBbt:00000212 (Fly Anatomy)
Definition The main airway of the larval/embryonic tracheal system, linking its metameric units and spanning the length of the animal from the anterior spiracle in the prothoracic segment to the posterior spiracle in A8 on the same side. There are two per larva, left and right.[ FlyBase:FBrf0064787 ]
Also Known As "larval dorsal longitudinal trunk" ; "larval dorsal trunk" ; "larval DT" (for all, see Synonyms field below)
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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
 embryonic/larval tracheal dorsal trunk (all annotations which use CV term, excluding "NOT" statements)
     embryonic/larval tracheal dorsal trunk | cell autonomous | embryonic stage 17
      --       --
     embryonic/larval tracheal dorsal trunk | cell autonomous | embryonic stage 17 | somatic clone
      --       --
     embryonic/larval tracheal dorsal trunk | cell autonomous | third instar larval stage
      --       --
     embryonic/larval tracheal dorsal trunk | embryonic stage
      --
     embryonic/larval tracheal dorsal trunk | embryonic stage 15
      --       --       --
     embryonic/larval tracheal dorsal trunk | embryonic stage 16
      --
      --
     embryonic/larval tracheal dorsal trunk | embryonic stage 17
      --
     embryonic/larval tracheal dorsal trunk | first instar larval stage
      --
     embryonic/larval tracheal dorsal trunk | germline clone
      --       --       --
     embryonic/larval tracheal dorsal trunk | germline clone | maternal effect
      --       --       --
     embryonic/larval tracheal dorsal trunk | germline clone | rescuable maternal effect
      --       --       --
     embryonic/larval tracheal dorsal trunk | heat sensitive
      --       --       --
     embryonic/larval tracheal dorsal trunk | larval stage
      --       --
     embryonic/larval tracheal dorsal trunk | late embryonic stage
      --       --       --
     embryonic/larval tracheal dorsal trunk | second instar larval stage
      --
     embryonic/larval tracheal dorsal trunk | somatic clone
      --       --       --
     embryonic/larval tracheal dorsal trunk | somatic clone | third instar larval stage
      --       --       --
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Vocabulary search
larval tracheal system
 |__embryonic/larval tracheal section__
tracheal section                       |
 |__embryonic/larval tracheal section__|
tracheal branch                        |
 |__primary tracheal branch____________|
                                       embryonic/larval tracheal dorsal trunk  591 rec.
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Is a embryonic/larval tracheal section
primary tracheal branch
Develops from tracheal dorsal trunk primordium
Part of
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