FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term chaeta ID (Ontology) FBbt:00005177 (Fly Anatomy)
Definition A sensillum with a long, unicellular, setiform outgrowth that is strongly chitinized.[ FlyBase:FBrf0111704 FlyBase:FBrf0166419 ]
Also Known As "sensillum chaeticum"
Comment This term is sometimes used to refer to the 'bristle-like' outgrowth only, but is here used to refer to the entire sensillum of which it is a part.
Links to External Ontologies
VFB:FBbt_00005177
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     811
Insertions (FBti)  PHENOTYPE_MANIFEST_IN     184
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN     503
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 Genes Insertions Constructs
 chaeta (all annotations which use CV term, excluding "NOT" statements)     811      1    184    503
     chaeta | absent       2       --       --       2
     chaeta | adult stage | increased number       4       --       --       1
     chaeta | cell autonomous | somatic clone       1       --       --       --
     chaeta | cell non-autonomous | somatic clone       2       --       --       --
     chaeta | ectopic      77       --      40     29
     chaeta | ectopic | somatic clone       4       --       --       2
     chaeta | female       3       --       1       --
     chaeta | heat sensitive      10       --       --      10
     chaeta | increased number     295       --       --     292
     chaeta | P-stage       7       --       --       --
     chaeta | pharate adult stage       1       --       1       --
     chaeta | pupal stage       1       --       --       --
     chaeta | somatic clone      33       --       2       --
     chaeta | somatic clone | increased number       4       --       --       2
     chaeta | somatic clone | temperature conditional       2       --       --       --
Spanning Tree (Parents/Children)
Only view relationship:
  external sensillum
   |__eo-type sensillum
       |__chaeta  8210 rec.
           |__adult head bristle 1846 rec.
           |   |__adult antennal bristle(+) 2 rec.
           |   |__cibarial fish-trap bristle(+) 2 rec.
           |   |__frontal bristle 9 rec.
           |   |__fronto-orbital bristle 2 rec.
           |   |__haustellum bristle
           |   |__interocellar bristle 38 rec.
           |   |__interommatidial bristle 1127 rec.
           |   |__labellar mechanosensory bristle
           |   |__labellar taste bristle(+) 216 rec.
           |   |__maxillary palp bristle 17 rec.
           |   |__ocellar bristle 165 rec.
           |   |__orbital bristle(+) 114 rec.
           |   |__postocellar bristle 131 rec.
           |   |__postorbital bristle(+) 11 rec.
           |   |__premandibular bristle 1 rec.
           |   |__supracervical bristle 11 rec.
           |   |__ventral occipital bristle(+) 3 rec.
           |   |__vertical bristle(+) 60 rec.
           |   |__vibrissal bristle(+) 121 rec.
           |__cercal bristle
           |   |__cercal dorsal lobe bristle
           |   |__cercal ventral lobe bristle
           |__epandrial bristle
           |   |__epandrial dorsal lobe bristle
           |   |__epandrial ventral lobe bristle
           |__epigynial bristle
           |__epiproctal bristle
           |__hypandrial bristle 13 rec.
           |__hypogynial bristle 42 rec.
           |   |__hypogynial long bristle 26 rec.
           |   |__hypogynial short bristle 1 rec.
           |   |__hypogynial tooth 41 rec.
           |__hypoproctal bristle
           |__mechanosensory chaeta 6138 rec.
           |   |__adult abdominal mechanosensory chaeta(+) 104 rec.
           |   |__adult thoracic mechanosensory chaeta(+) 1497 rec.
           |   |__chemosensory ventral double row bristle 2 rec.
           |   |__chemosensory ventral triple row bristle 33 rec.
           |   |__labellar mechanosensory bristle
           |   |__labellar taste bristle(+) 216 rec.
           |   |__leg mechanosensory bristle(+) 119 rec.
           |   |__macrochaeta(+) 4529 rec.
           |   |__maxillary palp bristle 17 rec.
           |   |__microchaeta(+) 2082 rec.
           |   |__wing margin mechanosensory bristle(+) 49 rec.
           |__mesothoracic bristle 2240 rec.
           |   |__bristle of mesothoracic tergum(+) 1405 rec.
           |   |__katepisternal bristle 2 rec.
           |   |__mesothoracic leg mechanosensory bristle(+) 82 rec.
           |   |__mesothoracic leg taste bristle(+) 4 rec.
           |   |__sternopleural bristle(+) 107 rec.
           |   |__wing margin bristle(+) 750 rec.
           |__metathoracic bristle 74 rec.
           |   |__metathoracic leg mechanosensory bristle(+) 24 rec.
           |   |__metathoracic leg taste bristle(+) 3 rec.
           |__pregonal bristle
           |__prothoracic bristle 208 rec.
           |   |__humeral bristle(+) 85 rec.
           |   |__prothoracic coxal bristle(+) 4 rec.
           |   |__prothoracic femoral bristle
           |   |__prothoracic leg mechanosensory bristle(+) 64 rec.
           |   |__prothoracic leg taste bristle(+) 21 rec.
           |   |__prothoracic tibial bristle(+) 29 rec.
           |   |__prothoracic trochanteral bristle(+) 1 rec.
           |   |__sex comb tooth 40 rec.
           |__surstylar long bristle 11 rec.
           |__surstylar tooth 6 rec.
           |__taste bristle 291 rec.
               |__labellar taste bristle(+) 216 rec.
               |__leg taste bristle(+) 31 rec.
               |__wing margin taste bristle(+) 43 rec.
Spanning Tree View Settings
Parents/Children
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Is a eo-type sensillum
Part of
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Synonyms
Secondary IDs
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UBERON:6005177
VFB:FBbt_00005177