FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
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
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     100
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       3
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      54
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 Images Insertions Constructs
 Keilin organ (all annotations which use CV term, excluding "NOT" statements)     100      6      2      4     55
     Keilin organ | ectopic       1       --       --       --       --
     Keilin organ | embryonic stage      12       --       --       --       --
     Keilin organ | embryonic stage | heat sensitive       3       --       --       --       3
     Keilin organ | germline clone       1       --       --       --       --
     Keilin organ | heat sensitive       2       --       --       --       2
Spanning Tree (Parents/Children)
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germ layer derivative
 |__ectodermal derivative________________
external sensillum                       |
 |__eo-type sensillum____________________|
larval sensillum                         |
 |__embryonic/larval thoracic sensillum__|
                                         Keilin organ  170 rec.
                                          |__mesothoracic Keilin organ 2 rec.
                                          |__metathoracic Keilin organ 4 rec.
                                          |__prothoracic Keilin organ
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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