FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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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.
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 secondary branch/tracheole primordium (all annotations which use CV term, excluding "NOT" statements)       2
Spanning Tree (Parents/Children)
Only view relationship: 
embryo
 |__developing embryonic structure_____
 |__dorsal closure embryo______________|
extended germ band embryo              |
 |__late extended germ band embryo_____|
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.
                                        |__terminal tracheal cell 295 rec.
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Is a developing embryonic structure
primordium
Part of late extended germ band embryo
dorsal closure embryo
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Synonyms
  • "P1 Tracheo" RELATED
    "secondary branch specific anlage" RELATED
    "tracheole specific anlage" RELATED
Secondary IDs
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