FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term abdominal anterior ventral multidendritic neuron vdaa ID (Ontology) FBbt:00002517 (Fly Anatomy)
Definition Larval class IV multidendritic neuron with its soma located relatively anteriorly in the dorsal (v') part of a ventral sensory cluster of an abdominal segment (Grueber et al., 2002; Orgogozo and Grueber, 2005). Its dendrites cover a lateral region of the body wall of its segment and do not overlap with the dendrites of the dorsal (ddaC) or ventral (vdaB) neurons (Grueber et al., 2002). It develops from a common precursor with the abdominal v'esB neuron (Brewster and Bodmer, 1995; Veling et al., 2019). Its axon terminals are initially found in the ventral nociceptive neuropil, alongside vdaB (Li et al., 2019). In the early second instar, these terminals separate, leaving vdaa in an intermediate position between ddaC and vdaB (Li et al., 2019). It is remodeled into the adult vdaa neuron during metamorphosis (Shimono et al., 2009).[ FlyBase:FBrf0083795 FlyBase:FBrf0148966 FlyBase:FBrf0183734 FlyBase:FBrf0209127 FlyBase:FBrf0244192 FlyBase:FBrf0244259 ]
Also Known As"larval C4da M neuron" ; "larval class IV dendritic arborization middle neuron" ; "v'ada" (for all, see Synonyms field below)
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VFB:FBbt_00002517
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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 Insertions Constructs
 abdominal anterior ventral multidendritic neuron vdaa (all annotations which use CV term, excluding "NOT" statements)
     abdominal anterior ventral multidendritic neuron vdaa | increased number
      --       --       --
     abdominal anterior ventral multidendritic neuron vdaa | pharate adult stage
      --       --
     abdominal anterior ventral multidendritic neuron vdaa | somatic clone
      --       --
     abdominal anterior ventral multidendritic neuron vdaa | somatic clone | third instar larval stage
      --       --
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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__|
dendritic arborizing neuron                                       |
 |__larval multidendritic class IV neuron_________________________|
larval abdominal nerve sensory neuron                             |
 |__larval abdominal ventral cluster group multidendritic neuron__|
larval multidendritic neuron                                      |
 |__larval multidendritic class IV neuron_________________________|
nociceptive neuron                                                |
 |__larval multidendritic class IV neuron_________________________|
                                                                  abdominal anterior ventral multidendritic neuron vdaa  181 rec.
                                                                   |__abdominal 1 anterior ventral multidendritic neuron vdaa
                                                                   |__abdominal 2 anterior ventral multidendritic neuron vdaa
                                                                   |__abdominal 3 anterior ventral multidendritic neuron vdaa
                                                                   |__abdominal 4 anterior ventral multidendritic neuron vdaa
                                                                   |__abdominal 5 anterior ventral multidendritic neuron vdaa
                                                                   |__abdominal 6 anterior ventral multidendritic neuron vdaa
                                                                   |__abdominal 7 anterior ventral multidendritic neuron vdaa
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Is a larval abdominal ventral cluster group multidendritic neuron
larval multidendritic class IV neuron
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VFB:FBbt_00002517