FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term distal medullary amacrine neuron Dm2 ID (Ontology) FBbt:00003769 (Fly Anatomy)
Definition Distal medullary wide-field amacrine neuron whose cell body is located in the cell body rind of the medulla. It terminates with a small bushy arbor with mixed terminal morphology in layers M3-M6B. The arbors in M6B extend into neighboring columns on the dorsal side. The small arbors cover 2 columns in M6 and one in the other layers. It is cholinergic (Konstantinides et al., 2022).[ FlyBase:FBrf0049410 FlyBase:FBrf0204652 FlyBase:FBrf0222324 FlyBase:FBrf0228639 FlyBase:FBrf0252485 FlyBase:FBrf0253187 ]
Also Known As "Dm2"
Comment Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989) as assessed by FlyBrain Neuron DB.
Links to External Ontologies
VFB:FBbt_00003769
Annotations
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
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 Alleles  Insertions Constructs
 distal medullary amacrine neuron Dm2 (all annotations which use CV term, excluding "NOT" statements)       1      2      1      1
Spanning Tree (Parents/Children)
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adult optic lobe neuron
 |__distal medullary amacrine neuron________
optic lobe amacrine neuron                  |
 |__distal medullary amacrine neuron________|
adult optic lobe columnar neuron            |
 |__optic lobe wide-field columnar neuron___|
cholinergic neuron                          |
 |__adult cholinergic neuron________________|
adult neuron                                |
 |__adult cholinergic neuron________________|
secondary neuron                            |
 |__Notch OFF hemilineage secondary neuron__|
Notch OFF hemilineage neuron                |
 |__Notch OFF hemilineage secondary neuron__|
medulla intrinsic neuron                    |
 |__distal medullary amacrine neuron________|
                                            distal medullary amacrine neuron Dm2  5 rec.
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Is a distal medullary amacrine neuron
Notch OFF hemilineage secondary neuron
adult cholinergic neuron
optic lobe wide-field columnar neuron
Develops from immature distal medullary amacrine neuron Dm2
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Synonyms
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FlyBrain_NDB:10082
VFB:FBbt_00003769