FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term secondary branch/tracheole primordium ID (Ontology) FBbt:00017025 (Fly Anatomy)
Definition Precursor tissue of secondary trachea and tracheoles.
Comment There is a good case for merging this with 'terminal tracheal cell' as secondary branches / tracheoles typically (always?) develop from a single cell.
Links to External Ontologies
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)
No relevant records available
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Genes
 secondary branch/tracheole primordium (all annotations which use CV term, excluding "NOT" statements)       2
Spanning Tree (Parents/Children)
Only view relationship: 
developing material anatomical entity
 |__developing embryonic structure__
 |__primordium______________________|
                                    secondary branch/tracheole primordium  304 rec.
                                     |__dorsal group tracheal branch precursor 9 rec.
                                     |__lateral group tracheal branch precursor 3 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a developing embryonic structure
primordium
Part of late extended germ band embryo
dorsal closure embryo
hide Synonyms & Secondary IDs
Synonyms
  • "P1 Tracheo" RELATED
    "secondary branch specific anlage" RELATED
    "tracheole specific anlage" RELATED
Secondary IDs
hide External Crossreferences & Linkouts