FB2026_03 , released September 17, 2026
CV Term Report
Help Close All Open All
General Information
Term larval tracheal system ID (Ontology) FBbt:00000185 (Fly Anatomy)
Definition Tracheal system of the late embryo or larva. The three larval instars retain the same basic pattern of the tracheal system, but with increasing complexity of branch trachea. It is composed of ten tracheal metameres.[ FlyBase:FBrf0034081 ]
Also Known As"embryonic/larval tracheal system"
Comment
Links to External Ontologies
Annotations
Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

    • Results list data from multiple species. Choose a record type above to open its HitList.
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
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
 larval tracheal system (all annotations which use CV term, excluding "NOT" statements)
     larval tracheal system | embryonic stage
      --
     larval tracheal system | embryonic stage 16
      --
      --
     larval tracheal system | embryonic stage 17
      --
     larval tracheal system | embryonic stage 17 | temperature conditional
      --       --
     larval tracheal system | first instar larval stage
      --
     larval tracheal system | germline clone
      --
      --
     larval tracheal system | germline clone | maternal effect
      --       --       --
     larval tracheal system | germline clone | rescuable maternal effect
      --       --       --
     larval tracheal system | heat sensitive
      --       --
     larval tracheal system | larval stage
      --
     larval tracheal system | maternal effect
      --
      --
     larval tracheal system | posterior
      --       --       --
     larval tracheal system | somatic clone
      --
      --
     larval tracheal system | third instar larval stage
      --       --
Spanning Tree (Parents/Children)
Only view relationship:
Vocabulary search 
organism
 |__larva____________
organ system         |
 |__tracheal system__|
                     larval tracheal system  2634 rec.
                      |__embryonic/larval peritracheal cell 14 rec.
                      |   |__embryonic/larval peritracheal PM cell 4 rec.
                      |   |__embryonic/larval peritracheal PMa cell
                      |__embryonic/larval spiracle 908 rec.
                      |   |__embryonic/larval anterior spiracle(+) 100 rec.
                      |   |__embryonic/larval posterior spiracle(+) 793 rec.
                      |   |__non-functional larval spiracle(+)
                      |__embryonic/larval tracheal section 1377 rec.
                      |   |__embryonic/larval dorsal group tracheal branch(+)
                      |   |__embryonic/larval dorsal tracheal anastomosis(+) 16 rec.
                      |   |__embryonic/larval dorsal tracheal branch(+) 264 rec.
                      |   |__embryonic/larval fat body tracheal branch(+) 1 rec.
                      |   |__embryonic/larval ganglionic tracheal branch(+) 131 rec.
                      |   |__embryonic/larval lateral group tracheal branch(+) 30 rec.
                      |   |__embryonic/larval spiracular tracheal branch(+) 13 rec.
                      |   |__embryonic/larval tracheal dorsal trunk 591 rec.
                      |   |__embryonic/larval tracheal lateral trunk 62 rec.
                      |   |__embryonic/larval tracheal transverse connective(+) 54 rec.
                      |   |__embryonic/larval ventral tracheal anastomosis(+) 5 rec.
                      |   |__embryonic/larval visceral tracheal branch(+) 93 rec.
                      |   |__larval tracheal branch of Tr1(+) 32 rec.
                      |   |__larval tracheal branch of Tr10(+) 8 rec.
                      |   |__non-functional spiracular tracheal branch(+)
                      |__imaginal tracheal precursor 45 rec.
                      |   |__imaginal tracheoblast(+) 42 rec.
                      |__larval tracheocyte 86 rec.
                      |   |__embryonic/larval tracheal stalk cell 21 rec.
                      |__tracheal precursor cell 15 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a tracheal system
Develops from presumptive embryonic/larval tracheal system
Part of larva
hide Synonyms & Secondary IDs
Synonyms
  • "embryonic/larval tracheal system" EXACT
Secondary IDs
hide External Crossreferences & Linkouts