FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term medulla-lobula visual projection neuron 1 ID (Ontology) FBbt:00052138 (Fly Anatomy)
Definition Visual projection neuron with its cell body near the anterior proximal medulla and an axonal projection following that of the medulla-lobula neuron 1 (Kind et al., 2021). It has wide-field dendritic arborization in the medulla, spanning tens of columns, ramifying at the border of layers M7/M8, then sending vertical projections to M3 and then to M1, and expanding laterally in each of these layers (Kind et al., 2021). Its main synaptic input from photoreceptors is from R8 cells of pale ommatidia (Kind et al., 2021). It projects to the ipsilateral posterior lateral protocerebrum, innervating a region just behind the optic glomeruli (Kind et al., 2021). There are approximately 65 of these cells per optic lobe (Kind et al., 2021).[ FlyBase:FBrf0252485 ]
Also Known As "ML-VPN1"
Comment MTe50 mapped to ML-VPN1 in Bates et al. (2025) - doi:10.1101/2025.07.31.667571, but cell numbers do not match.
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VFB:FBbt_00052138
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 medulla-lobula visual projection neuron 1 (all annotations which use CV term, excluding "NOT" statements)       1      2
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supraesophageal ganglion neuron
 |__adult optic lobe neuron_________
anterior ectoderm derivative        |
 |__adult optic lobe neuron_________|
visual projection neuron            |
 |__adult visual projection neuron__|
adult interneuron                   |
 |__adult visual projection neuron__|
adult CNS neuron                    |
 |__adult optic lobe neuron_________|
                                    medulla-lobula visual projection neuron 1  3 rec.
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Is a adult optic lobe neuron
adult visual projection neuron
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VFB:FBbt_00052138