FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term mesothoracic tibial spur bristle ID (Ontology) FBbt:00004389 (Fly Anatomy)
Definition Short, thick and peg-shaped bracted bristle that surrounds the mesothoracic tibial apical bristle. There are 4 or 5 of these.[ FlyBase:FBrf0208458 FlyBase:FBrf0219028 ]
Comment
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VFB:FBbt_00004389
Annotations
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Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Insertions Constructs
 mesothoracic tibial spur bristle (all annotations which use CV term, excluding "NOT" statements)
     mesothoracic tibial spur bristle | ectopic
      --
     mesothoracic tibial spur bristle | ectopic | somatic clone
Spanning Tree (Parents/Children)
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Vocabulary search 
mesothoracic bristle
 |__mesothoracic leg mechanosensory bristle__
mesothoracic leg sensillum                   |
 |__mesothoracic leg mechanosensory bristle__|
tibia                                        |
 |__mesothoracic tibia_______________________|
mesothoracic leg                             |
 |__mesothoracic tibia_______________________|
mechanosensory chaeta                        |
 |__macrochaeta______________________________|
leg mechanosensory bristle                   |
 |__mesothoracic leg mechanosensory bristle__|
                                             mesothoracic tibial spur bristle  9 rec.
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Is a macrochaeta
mesothoracic leg mechanosensory bristle
Develops from presumptive mesothoracic tibial spur bristle
Part of mesothoracic tibia
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Synonyms
Secondary IDs
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VFB:FBbt_00004389