FB2026_03 , released September 17, 2026
CV Term Report
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Term adult protocerebral bridge 1 glomerulus-fan-shaped body-round body neuron ID (Ontology) FBbt:00051255 (Fly Anatomy)
Definition Small field neuron of the central complex with dendritic arbors in a single glomerulus of the protocerebral bridge (PB), mixed terminals in layers 3, 4 and 5 of a fan-shaped body column, and presynaptic or mixed terminals in the round body (Lin et al., 2013; Wolff et al., 2015; Wolff and Rubin, 2018; Hulse et al., 2021). It develops from one of the four central complex neuroblasts (Sullivan et al., 2019). These cells are found in PB glomeruli 1-8, but not 9 (Wolff et al., 2015; Hulse et al., 2021). There are two subtypes, one that has a phase shift in connectivity between PB glomeruli and FB columns and one that does not (Hulse et al., 2021).[ FlyBase:FBrf0221742 FlyBase:FBrf0227801 FlyBase:FBrf0240744 FlyBase:FBrf0241592 FlyBase:FBrf0254510 ]
Also Known As"P-F-R neuron" ; "PFR" ; "protocerebral bridge-fan-shaped body-round body neuron"
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VFB:FBbt_00051255
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Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 adult protocerebral bridge 1 glomerulus-fan-shaped body-round body neuron (all annotations which use CV term, excluding "NOT" statements)
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supraesophageal ganglion neuron
 |__adult protocerebral bridge 1 glomerulus-fan-shaped body-lateral accessory lobe neuron__
ectodermal derivative                                                                      |
 |__anterior ectoderm derivative___________________________________________________________|
fan-shaped body extrinsic columnar neuron                                                  |
 |__adult protocerebral bridge 1 glomerulus-fan-shaped body-lateral accessory lobe neuron__|
                                                                                         adult protocerebral bridge 1 glomerulus-fan-shaped body-round body neuron  42 rec.
                                                                                          |__adult protocerebral bridge 1 glomerulus-fan-shaped body-round body type a neuron 36 rec.
                                                                                          |   |__protocerebral bridge glomerulus 1-fan-shaped body-round body type a neuron
                                                                                          |   |__protocerebral bridge glomerulus 2-fan-shaped body-round body type a neuron
                                                                                          |   |__protocerebral bridge glomerulus 3-fan-shaped body-round body type a neuron
                                                                                          |   |__protocerebral bridge glomerulus 4-fan-shaped body-round body type a neuron
                                                                                          |   |__protocerebral bridge glomerulus 5-fan-shaped body-round body type a neuron
                                                                                          |   |__protocerebral bridge glomerulus 6-fan-shaped body-round body type a neuron
                                                                                          |   |__protocerebral bridge glomerulus 7-fan-shaped body-round body type a neuron
                                                                                          |   |__protocerebral bridge glomerulus 8-fan-shaped body-round body type a neuron
                                                                                          |__adult protocerebral bridge 1 glomerulus-fan-shaped body-round body type b neuron
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Is a adult protocerebral bridge 1 glomerulus-fan-shaped body-lateral accessory lobe neuron
anterior ectoderm derivative
Develops from central complex neuroblast
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VFB:FBbt_00051255