FB2026_03 , released September 17, 2026

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

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Split System Combinations	Constructs
larval mushroom body output neuron c1 (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

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.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
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
Synonyms & Secondary IDs
Synonyms
	"CN-59" EXACT[ FlyBase:FBrf0251872 ] "larval MBE18" EXACT "larval MBON-c1" EXACT[ FlyBase:FBrf0238440 ] "larval mushroom body-lateral horn convergence neuron 59" EXACT[ FlyBase:FBrf0251872 ]
Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00047967