FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term abdominal posterior ventral multidendritic neuron vdap ID (Ontology) FBbt:00002525 (Fly Anatomy)
Definition Larval class I multidendritic neuron with its soma located relatively posteriorly in the ventral (v) part of a ventral sensory cluster of an abdominal segment (Grueber et al., 2002; Orgogozo and Grueber, 2005). It is a proprioceptor neuron (Heckscher et al., 2015). It fasciculates with branch c of the abdominal segmental nerve (SNc) (Campos-Ortega and Hartenstein, 1997). It has strong outputs to Jaam2 (Heckscher et al., 2015). It does not persist into the adult stage (Shimono et al., 2009).[ FlyBase:FBrf0089570 FlyBase:FBrf0148966 FlyBase:FBrf0209127 FlyBase:FBrf0229965 ]
Also Known As "vpda"
Comment Campos Ortega and Hartenstein (1997) state in one place that this neuron fasciculates with SNc and elsewhere that it fasciculates with SNa. It seems unlikely to do both, so have gone with SNc on the basis of the relevant figures. The number of identified output synapses in A1 to Jaam2 was 32/21 (L/R) (Heckscher et al., 2015).
Links to External Ontologies
VFB:FBbt_00002525
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      17
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       5
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       8
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Insertions Constructs
 abdominal posterior ventral multidendritic neuron vdap (all annotations which use CV term, excluding "NOT" statements)      17      7      8
     abdominal posterior ventral multidendritic neuron vdap | somatic clone       1       --       --
     abdominal posterior ventral multidendritic neuron vdap | third instar larval stage       4       --       3
Spanning Tree (Parents/Children)
Only view relationship: 
larval segmental nerve sensory neuron
 |__larval abdominal ventral cluster group multidendritic neuron__
larval ventral cluster group multidendritic neuron                |
 |__larval abdominal ventral cluster group multidendritic neuron__|
larval abdominal multidendritic neuron                            |
 |__larval abdominal ventral cluster group multidendritic neuron__|
larval abdominal segmental nerve neuron                           |
 |__larval abdominal ventral cluster group multidendritic neuron__|
sensory neuron                                                    |
 |__proprioceptive sensory neuron_________________________________|
dendritic arborizing neuron                                       |
 |__larval multidendritic class I neuron__________________________|
larval abdominal nerve sensory neuron                             |
 |__larval abdominal ventral cluster group multidendritic neuron__|
larval multidendritic neuron                                      |
 |__larval multidendritic class I neuron__________________________|
proprioceptive system neuron                                      |
 |__proprioceptive sensory neuron_________________________________|
                                                                  abdominal posterior ventral multidendritic neuron vdap  32 rec.
                                                                   |__abdominal 1 posterior ventral multidendritic neuron vdap
                                                                   |__abdominal 2 posterior ventral multidendritic neuron vdap
                                                                   |__abdominal 3 posterior ventral multidendritic neuron vdap
                                                                   |__abdominal 4 posterior ventral multidendritic neuron vdap
                                                                   |__abdominal 5 posterior ventral multidendritic neuron vdap
                                                                   |__abdominal 6 posterior ventral multidendritic neuron vdap
                                                                   |__abdominal 7 posterior ventral multidendritic neuron vdap
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Is a larval abdominal ventral cluster group multidendritic neuron
larval multidendritic class I neuron
proprioceptive sensory neuron
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VFB:FBbt_00002525