FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term abdominal lateral pentascolopidial chordotonal organ lch5 ID (Ontology) FBbt:00002831 (Fly Anatomy)
Definition Pentascolopidial chordotonal organ located in the lateral sensory cluster of the embryonic/larval abdominal segment. Each of the five scolopidia that constitute the lch5 organ contains a sensory unit composed of a neuron and a scolopale cell, and two accessory cells between which the sensory unit is stretched: a cap cell at the dendritic side and a ligament cell at the axonal side of the neuron (Halachmi et al., 2016). The cap and the ligament cells of all five organs are anchored to the cuticle by two cap attachment cells and one ligament attachment cell (Halachmi et al., 2016). The neuron, scolopale, cap, ligament and cap attachment cells of each scolopidium are derived from a single ato-expressing precursor through four asymmetric cell divisions (Halachmi et al., 2016).[ FlyBase:FBrf0089570 FlyBase:FBrf0231059 ]
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Links to External Ontologies
VFB:FBbt_00002831
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      49
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       7
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      11
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 abdominal lateral pentascolopidial chordotonal organ lch5 (all annotations which use CV term, excluding "NOT" statements)      49     10      4      8     15
     abdominal lateral pentascolopidial chordotonal organ lch5 | embryonic stage       2       --       --       1       --
     abdominal lateral pentascolopidial chordotonal organ lch5 | embryonic stage 16       5       --       --       --       3
     abdominal lateral pentascolopidial chordotonal organ lch5 | germline clone       4       --       --       --       --
     abdominal lateral pentascolopidial chordotonal organ lch5 | increased number       6       --       --       --       2
     abdominal lateral pentascolopidial chordotonal organ lch5 | third instar larval stage       7       --       --       2       --
Spanning Tree (Parents/Children)
Only view relationship: 
sense organ
 |__larval sense organ__________________
chordotonal organ                       |
 |__pentascolopidial chordotonal organ__|
                                        abdominal lateral pentascolopidial chordotonal organ lch5  147 rec.
                                         |__abdominal 1 lateral pentascolopidial chordotonal organ lch5 40 rec.
                                         |__abdominal 2 lateral pentascolopidial chordotonal organ lch5 38 rec.
                                         |__abdominal 3 lateral pentascolopidial chordotonal organ lch5 40 rec.
                                         |__abdominal 4 lateral pentascolopidial chordotonal organ lch5 38 rec.
                                         |__abdominal 5 lateral pentascolopidial chordotonal organ lch5 38 rec.
                                         |__abdominal 6 lateral pentascolopidial chordotonal organ lch5 38 rec.
                                         |__abdominal 7 lateral pentascolopidial chordotonal organ lch5 40 rec.
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Is a larval sense organ
pentascolopidial chordotonal organ
Part of larval lateral sensory cluster of A1-7
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Synonyms
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VFB:FBbt_00002831