FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term transmedullary Y neuron TmY14 ID (Ontology) FBbt:00111286 (Fly Anatomy)
Definition Transmedullary Y wide-field neuron that terminates in the lobula and lobula plate (Takemura et al., 2013). It displays fine arborizations in medulla layers M3-M5 and M8-M10 (Takemura et al., 2013). Some of these cells have an axon that projects to the central brain, an unusual feature in TmY neurons (Takemura et al., 2013; Shinomiya et al., 2019; Matsliah et al., 2024), but this axon has very few synapses (Matsliah et al., 2024). It is glutamatergic (Konstantinides et al., 2022).[ FlyBase:FBrf0222324 FlyBase:FBrf0243899 FlyBase:FBrf0253187 FlyBase:FBrf0260545 ]
Also Known As "TmY14"
Comment Matsliah et al. (2024) identify 'typical' TmY14 that have central brain axon and 'atypical' that do not in FAFB. Unclear if 'atypical' exist in other brains.
Links to External Ontologies
VFB:FBbt_00111286
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
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 transmedullary Y neuron TmY14 (all annotations which use CV term, excluding "NOT" statements)       1      8      3      2
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transmedullary neuron
 |__transmedullary Y neuron_________________
adult optic lobe columnar neuron            |
 |__optic lobe wide-field columnar neuron___|
adult neuron                                |
 |__adult glutamatergic neuron______________|
secondary neuron                            |
 |__Notch OFF hemilineage secondary neuron__|
Notch OFF hemilineage neuron                |
 |__Notch OFF hemilineage secondary neuron__|
glutamatergic neuron                        |
 |__adult glutamatergic neuron______________|
                                            transmedullary Y neuron TmY14  14 rec.
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Is a transmedullary Y neuron
Notch OFF hemilineage secondary neuron
adult glutamatergic neuron
optic lobe wide-field columnar neuron
Develops from immature transmedullary Y neuron TmY14
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VFB:FBbt_00111286