FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

branch fusion, open tracheal system

ID (Ontology)

GO:0035147 (Gene Ontology)

Definition

Fusing of specific tracheal branches in an open tracheal system to branches from neighboring hemisegments to form a continuous tracheal network. Branch fusion is mediated by individual cells at the tip of each branch, which contact a similar cell and undergo a coordinated series of morphogenetic events that create a bicellular fusion joint.[ PubMed:14570584 ]

Also Known As

"tracheal branch fusion"

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Genes (FBgn)	GO_BIOLOGICAL_PROCESS

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Genes
branch fusion, open tracheal system (all annotations which use CV term, excluding "NOT" statements)
involved_in \| branch fusion, open tracheal system

Spanning Tree (Parents/Children)

open tracheal system development
 |__branching involved in open tracheal system development__
tube morphogenesis                                          |
 |__tube fusion_____________________________________________|
branching morphogenesis of an epithelial tube               |
 |__tube fusion_____________________________________________|
 |__branching involved in open tracheal system development__|
                                                            branch fusion, open tracheal system  21 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	tube fusion
Part of	branching involved in open tracheal system development
Synonyms & Secondary IDs
Synonyms
	"tracheal branch fusion" EXACT
Secondary IDs

External Crossreferences & Linkouts