FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term abdominal dorsal trichoid sensillum dh1 ID (Ontology) FBbt:00002783 (Fly Anatomy)
Definition Small, mono-innervated hair of the dorsal sensory complex of larval abdominal segments 1-7.[ FlyBase:FBrf0045359 FlyBase:FBrf0089570 ]
Also Known As "abdominal dorsal sensillum trichodeum dh1" ; "abdominal dorsal sensillum trichodeum h3"
Comment Note that this organ (identified as the anterior organ in the dh1-dh2 organ pair) is reported to be tri-innervated in Campos-Ortega and Hartenstein, 1997. The formerly separate term 'h3' (FBbt:00002791) has been merged with dh1: It is clear from comparing the diagrams in Dambly-Chaudiere and Ghysen (1986) with Campos-Ortega and Hartenstein (1997), that the authors are referring to the same sensillum; FlyPNS also states that these are synonyms.
Links to External Ontologies
VFB:FBbt_00002783
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       1
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Relevant FlyBase reports
 Alleles
 abdominal dorsal trichoid sensillum dh1 (all annotations which use CV term, excluding "NOT" statements)       1
Spanning Tree (Parents/Children)
Only view relationship: 
eo-type sensillum
 |__trichoid sensillum__________
larval sensillum                |
 |__larval abdominal sensillum__|
                                abdominal dorsal trichoid sensillum dh1  1 rec.
                                 |__abdominal 1 dorsal trichoid sensillum dh1
                                 |__abdominal 2 dorsal trichoid sensillum dh1
                                 |__abdominal 3 dorsal trichoid sensillum dh1
                                 |__abdominal 4 dorsal trichoid sensillum dh1
                                 |__abdominal 5 dorsal trichoid sensillum dh1
                                 |__abdominal 6 dorsal trichoid sensillum dh1
                                 |__abdominal 7 dorsal trichoid sensillum dh1
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Is a larval abdominal sensillum
trichoid sensillum
Part of larval dorsal sensory cluster of A1-7
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Synonyms
  • "abdominal dorsal sensillum trichodeum dh1" EXACT
    "abdominal dorsal sensillum trichodeum h3" EXACT
    "b+st" BROAD
    "h3" BROAD
    "h3/4" BROAD[ FlyBase:FBrf0089570 ]
    "sensory hair F" BROAD
    "shF" BROAD
Secondary IDs
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VFB:FBbt_00002783