FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term embryonic/larval dorsal tracheal branch ID (Ontology) FBbt:00000265 (Fly Anatomy)
Definition Embryonic/larval trachea that branches dorsally from the dorsal trunk. It tracheates the dorsal epidermis and dorsal vessel. Each dorsal branch connects to the contralateral branch of the same tracheal metamere via the dorsal anastomosis.[ FlyBase:FBrf0064787 ]
Also Known As "dorsal trachea" ; "inner segmental trachea" ; "larval dorsal branch" (for all, see Synonyms field below)
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Annotations
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     131
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       5
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      68
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 Insertions Constructs
 embryonic/larval dorsal tracheal branch (all annotations which use CV term, excluding "NOT" statements)     132     45      5     69
     embryonic/larval dorsal tracheal branch | embryonic stage      19       --       --      10
     embryonic/larval dorsal tracheal branch | embryonic stage 13       1       --       --       --
     embryonic/larval dorsal tracheal branch | embryonic stage 15       1       --       --       --
     embryonic/larval dorsal tracheal branch | heat sensitive       2       --       --       --
     embryonic/larval dorsal tracheal branch | increased number       3       --       --       2
     embryonic/larval dorsal tracheal branch | larval stage      25       --       --      25
     embryonic/larval dorsal tracheal branch | third instar larval stage      19       --       --      12
Spanning Tree (Parents/Children)
Only view relationship:
tracheal section
 |__embryonic/larval tracheal section__
tracheal branch                        |
 |__primary tracheal branch____________|
                                       embryonic/larval dorsal tracheal branch  264 rec.
                                        |__embryonic/larval dorsal tracheal branch 1 8 rec.
                                        |__embryonic/larval dorsal tracheal branch 2 8 rec.
                                        |__embryonic/larval dorsal tracheal branch 3 6 rec.
                                        |__embryonic/larval dorsal tracheal branch 4 6 rec.
                                        |__embryonic/larval dorsal tracheal branch 5 6 rec.
                                        |__embryonic/larval dorsal tracheal branch 6 5 rec.
                                        |__embryonic/larval dorsal tracheal branch 7 10 rec.
                                        |__embryonic/larval dorsal tracheal branch 8 5 rec.
                                        |__embryonic/larval dorsal tracheal branch 9 5 rec.
                                        |__embryonic/larval dorsal tracheal branch 10 7 rec.
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Is a embryonic/larval tracheal section
primary tracheal branch
Develops from dorsal tracheal branch primordium
Part of
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Synonyms
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