FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term prothoracic metatarsal segment transverse row bristle ID (Ontology) FBbt:00004285 (Fly Anatomy)
Definition Any bracted bristle in one of the transverse bristle rows (TR) of the prothoracic metatarsus (tarsal segment 1). The TRs are located in the anterior compartment. There is sexual dimorphism, with females having 7 to 8 TRs, whereas in males, 2 of the TRs have been replaced by the male specific sex comb and central bristle.[ FlyBase:FBrf0031004 ]
Also Known As"prothoracic tarsal segment 1 transverse row" ; "T1 Ts1 TR"
Comment
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VFB:FBbt_00004285
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Constructs
 prothoracic metatarsal segment transverse row bristle (all annotations which use CV term, excluding "NOT" statements)
     prothoracic metatarsal segment transverse row bristle | female
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metatarsus
 |__prothoracic metatarsus______________
prothoracic tarsal segment              |
 |__prothoracic tarsal bristle__________|
 |__prothoracic metatarsus______________|
microchaeta                             |
 |__prothoracic tarsal bristle__________|
prothoracic leg mechanosensory bristle  |
 |__prothoracic tarsal bristle__________|
                                        prothoracic metatarsal segment transverse row bristle  4 rec.
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Is a prothoracic tarsal bristle
Part of prothoracic metatarsus
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Synonyms
  • "prothoracic tarsal segment 1 transverse row" EXACT
    "T1 Ts1 TR" EXACT
Secondary IDs
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VFB:FBbt_00004285