FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term prothoracic coxal bristle on hairy island ID (Ontology) FBbt:00004259 (Fly Anatomy)
Definition A relatively long bristle located on a small island of hairs (trichomes) in an otherwise bare region of cuticle on the lateral side of the costa at the distal end, adjacent to its joint with the trochanter.[ FlyBase:FBrf0031004 ]
Also Known As"T1 BH-"
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VFB:FBbt_00004259
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)PHENOTYPE_MANIFEST_IN
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 prothoracic coxal bristle on hairy island (all annotations which use CV term, excluding "NOT" statements)
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prothoracic leg sensillum
 |__prothoracic leg mechanosensory bristle__
 |__prothoracic coxal bristle_______________|
prothoracic coxa                            |
 |__prothoracic coxal bristle_______________|
mechanosensory chaeta                       |
 |__microchaeta_____________________________|
adult sensillum                             |
 |__microchaeta_____________________________|
prothoracic bristle                         |
 |__prothoracic leg mechanosensory bristle__|
 |__prothoracic coxal bristle_______________|
leg mechanosensory bristle                  |
 |__prothoracic leg mechanosensory bristle__|
                                            prothoracic coxal bristle on hairy island  4 rec.
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Is a microchaeta
prothoracic leg mechanosensory bristle
prothoracic coxal bristle
Develops from presumptive prothoracic coxal bristle on hairy island
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VFB:FBbt_00004259