FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term commissure ID (Ontology) FBbt:00007084 (Fly Anatomy)
Definition A fiber bundle that crosses the midline, connecting both hemispheres (Ito et al., 2014).[ FlyBase:FBrf0224194 ]
Also Known As "midline crossing tract"
Comment
Links to External Ontologies
VFB:FBbt_00007084
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      54
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      26
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 Insertions Constructs
 commissure (all annotations which use CV term, excluding "NOT" statements)      54      4     26
     commissure | ectopic       2       --       1
     commissure | embryonic stage      11       --       6
     commissure | embryonic stage 16      29       --      19
     commissure | embryonic stage 17       5      1       --
     commissure | larval stage       2      1       --
Spanning Tree (Parents/Children)
Only view relationship: 
  neuron projection bundle
   |__tract
       |__commissure  713 rec.
           |__adult labial commissure
           |__adult maxillary commissure
           |__adult optic lobe-calycal tract 5
           |__anterior chiasma of the central complex
           |__pb-fb tract Y 1 rec.
           |__pb-fb tract Z 1 rec.
           |__posterior chiasma of the central complex
           |__supraesophageal commissural pioneer tract 1 rec.
           |   |__anterior ventral commissural pioneer tract
           |   |__central anastomosing tract
           |   |__posterior ventral commissural pioneer tract
           |__symmetrical commissure 665 rec.
               |__brain commissure(+) 49 rec.
               |__larval anterior commissure(+) 113 rec.
               |__larval anterior intermediate commissure(+)
               |__larval gnathal ganglion commissure(+)
               |__larval posterior commissure(+) 123 rec.
               |__larval posterior dorsal commissure(+)
               |__larval posterior intermediate commissure(+)
               |__ventral nerve cord commissure(+) 222 rec.
Spanning Tree View Settings
Parents/Children
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Synonyms
  • "midline crossing tract" EXACT
Secondary IDs
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VFB:FBbt_00007084