FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term Keilin organ ID (Ontology) FBbt:00005198 (Fly Anatomy)
Definition A sensillum of the ventral sensory cluster group of the embryonic/larval thorax whose external sensory structure consists of a cluster of three hairs. It is innervated by 5 dendrites.[ FlyBase:FBrf0045359 FlyBase:FBrf0089570 ]
Also Known As"Keilin's organ" ; "KO"
Comment
Links to External Ontologies
VFB:FBbt_00005198
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 Keilin organ (all annotations which use CV term, excluding "NOT" statements)
     Keilin organ | ectopic
      --       --       --       --
     Keilin organ | embryonic stage
      --       --       --       --
     Keilin organ | embryonic stage | heat sensitive
      --       --       --
     Keilin organ | germline clone
      --       --       --       --
     Keilin organ | heat sensitive
      --       --       --
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Vocabulary search 
germ layer derivative
 |__ectodermal derivative______________________
larval thorax                                  |
 |__embryonic/larval thoracic sensillum________|
external sensillum                             |
 |__eo-type sensillum__________________________|
larval sensillum                               |
 |__embryonic/larval thoracic sensillum________|
larval thoracic ventral sensory cluster group  |
 |__larval thoracic ventral sensory cluster____|
larval ventral sensory cluster                 |
 |__larval thoracic ventral sensory cluster____|
                                               Keilin organ  166 rec.
                                                |__Keilin organ anterior lateral hair
                                                |   |__mesothoracic Keilin organ anterior lateral hair
                                                |   |__metathoracic Keilin organ anterior lateral hair
                                                |   |__prothoracic Keilin organ anterior lateral hair
                                                |__Keilin organ anterior medial hair
                                                |   |__mesothoracic Keilin organ anterior medial hair
                                                |   |__metathoracic Keilin organ anterior medial hair
                                                |   |__prothoracic Keilin organ anterior medial hair
                                                |__Keilin organ posterior hair
                                                |   |__mesothoracic Keilin organ posterior hair
                                                |   |__metathoracic Keilin organ posterior hair
                                                |   |__prothoracic Keilin organ posterior hair
                                                |__mesothoracic Keilin organ 2 rec.
                                                |   |__mesothoracic Keilin organ anterior lateral hair
                                                |__metathoracic Keilin organ 4 rec.
                                                |   |__metathoracic Keilin organ anterior lateral hair
                                                |__prothoracic Keilin organ
                                                    |__prothoracic Keilin organ anterior lateral hair
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Is a eo-type sensillum
embryonic/larval thoracic sensillum
ectodermal derivative
Develops from thoracic limb primordium
Part of larval thoracic ventral sensory cluster
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Synonyms
Secondary IDs
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VFB:FBbt_00005198