FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult lateral horn-fan-shaped body layer 2 neuron ID (Ontology) FBbt:00049419 (Fly Anatomy)
Definition Adult lateral horn output neuron that has wide-field (tangential) presynaptic arborization in fan-shaped body layer 2 (Dolan et al., 2019; Hulse et al., 2021). There are four of these neurons per hemisphere and they are glutamatergic (Dolan et al., 2019) and they develop from the CP2 neuroblast (Kandimalla et al., 2023).[ FlyBase:FBrf0242477 FlyBase:FBrf0249560 FlyBase:FBrf0254510 FlyBase:FBrf0257023 ]
Comment Hulse et al. (2021) say LHPV5k1 likely corresponds to FB2H_a, FB2H_b and/or FB2I_b, as does Schlegel et al. (2021) supplement. Schlegel et al. (2021) map this type to a different tract than other PV5 neurons, so PV5k1 name is misleading and this neuron is not part of the DL2 dorsal or DL1 dorsal hemilineage. All FB2I and FB2H mapped to CP2 lineage in Kandimalla et al. (2023). Dolan et al. (2019) say this is glutamatergic (based on immunohistochemistry), but Schlegel et al. (2021) predict cholinergic based on lineage.
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VFB:FBbt_00049419
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 adult lateral horn-fan-shaped body layer 2 neuron (all annotations which use CV term, excluding "NOT" statements)       4      9
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adult fan-shaped body layer 2 tangential neuron
 |__adult fan-shaped body layer 2 neuron of CP2 lineage__
adult neuron                                             |
 |__adult glutamatergic neuron___________________________|
adult lateral horn neuron                                |
 |__adult lateral horn output neuron_____________________|
adult DL1 lineage neuron                                 |
 |__adult fan-shaped body layer 2 neuron of CP2 lineage__|
adult interneuron                                        |
 |__adult lateral horn output neuron_____________________|
input/output neuron                                      |
 |__adult lateral horn output neuron_____________________|
glutamatergic neuron                                     |
 |__adult glutamatergic neuron___________________________|
                                                         adult lateral horn-fan-shaped body layer 2 neuron  13 rec.
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Is a adult lateral horn output neuron
adult fan-shaped body layer 2 neuron of CP2 lineage
adult glutamatergic neuron
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VFB:FBbt_00049419