FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term antennal lobe glomerulus VP1 ID (Ontology) FBbt:00003927 (Fly Anatomy)
Definition Ventro-posterior glomerulus of the adult antennal lobe. It is located dorsomedial to glomerulus VP3, dorsoposterior to glomerulus V. Three of these can be distinguished based on innervation patterns of sensory and projection neurons (Marin et al., 2020).[ FlyBase:FBrf0051437 FlyBase:FBrf0107836 FlyBase:FBrf0187305 FlyBase:FBrf0210390 FlyBase:FBrf0211729 FlyBase:FBrf0215822 FlyBase:FBrf0219809 FlyBase:FBrf0227110 FlyBase:FBrf0246456 ]
Also Known As "antennal glomerulus VP1" ; "column glomerulus"
Comment Discernible with Golgi impregnation or CoCl2 backfills (Stocker et al. 1990), but not with nc82/bruchtpilot immunolabelling, leading to it not being represented in antennal lobe maps (Laissue et al., 1999, Couto et al., 2005) or having its position changed (Chou et al., 2010; Yu et al., 2010). According to Chou et al (2010) and Yu et al (2010) glomerulus VP1 is located medially to glomerulus VP2. The VP1 glomerulus corresponds to the target region of the Ir40-expressing olfactory sensory neurons, corresponding to the 'column' (Silbering et al., 2011). Tanaka et al (2012) identifies a new glomerulus, VP4, as another target region of Ir40a-expressing olfactory sensory neurons, which is innervated by different projection neurons to VP1.
Links to External Ontologies
VFB:FBbt_00003927
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 antennal lobe glomerulus VP1 (all annotations which use CV term, excluding "NOT" statements)       1
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  adult antennal lobe glomerulus
   |__antennal lobe glomerulus VP
       |__antennal lobe glomerulus VP1  1 rec.
           |__antennal lobe glomerulus VP1d
           |__antennal lobe glomerulus VP1l
           |__antennal lobe glomerulus VP1m
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VFB:FBbt_00003927