FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval mushroom body output neuron c1 ID (Ontology) FBbt:00047967 (Fly Anatomy)
Definition Larval neuron that has postsynaptic terminals in the lower mushroom body pedunculus (spur) and presynaptic terminals in the basoposterior medial compartment (ventromedial cerebrum), centroposterior medial compartment (posterior inferior protocerebrum) and centroposterior lateral compartment (clamp). It is cholinergic (Eichler et al., 2017). It outputs onto FAN-9 (Eschbach et al., 2020). It develops from a BLD neuroblast (Saumweber et al., 2018) and develops into a calyx-innervating mushroom body extrinsic neuron (Truman et al., 2023).[ FlyBase:FBrf0236359 FlyBase:FBrf0238440 FlyBase:FBrf0245294 FlyBase:FBrf0255928 ]
Also Known As "CN-59" ; "larval MBE18" ; "larval MBON-c1" (for all, see Synonyms field below)
Comment Lineage given as 'BLDc' in Saumweber et al. (2018) - seems to be a catmaid annotation for BLD2-4 in Andrade et al. (2019) - FBrf0241389. Adult neuron not precisely identified as not followed to maturity in Truman et al. (2023). MBE18 and CN-59 synonyms from catmaid.
Links to External Ontologies
VFB:FBbt_00047967
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 larval mushroom body output neuron c1 (all annotations which use CV term, excluding "NOT" statements)       2      8
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larval neuron
 |__larval mushroom body-lateral horn convergence neuron__
 |__larval cholinergic neuron_____________________________|
interneuron                                               |
 |__primary interneuron___________________________________|
cholinergic neuron                                        |
 |__larval cholinergic neuron_____________________________|
ectodermal derivative                                     |
 |__anterior ectoderm derivative__________________________|
primary neuron                                            |
 |__primary interneuron___________________________________|
mushroom body output neuron                               |
 |__larval mushroom body output neuron____________________|
larval interneuron                                        |
 |__larval mushroom body output neuron____________________|
CNS neuron                                                |
 |__supraesophageal ganglion neuron_______________________|
                                                          larval mushroom body output neuron c1  10 rec.
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Is a supraesophageal ganglion neuron
anterior ectoderm derivative
larval mushroom body output neuron
larval mushroom body-lateral horn convergence neuron
primary interneuron
larval cholinergic neuron
Develops from neuroblast BLD
Part of
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VFB:FBbt_00047967