FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval A1-7-innervating DO2 motor neuron ID (Ontology) FBbt:00110230 (Fly Anatomy)
Definition Larval DO2 motor neuron that innervates a muscle in segments A1 to A7. Its dendritic arborization occupies the lateral domain of the ventral nerve cord neuropil. It exits the ventral nerve cord via the anterior root of the intersegmental nerve and innervates the DO2 muscle with type Ib boutons.[ FlyBase:FBrf0099344 FlyBase:FBrf0112030 FlyBase:FBrf0132289 FlyBase:FBrf0160715 FlyBase:FBrf0167986 FlyBase:FBrf0174847 FlyBase:FBrf0208790 FlyBase:FBrf0244727 ]
Also Known As "A1-7 MN-DO2 neuron" ; "A1-7 MN10-Ib" ; "A1-7 U2 motor neuron"
Comment Previously thought to correspond to the U3 neuron based on personal communication from Matthias Landgraf - FBrf0221138, but shown to be U2 by Meng et al. (2019).
Links to External Ontologies
VFB:FBbt_00110230
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 larval A1-7-innervating DO2 motor neuron (all annotations which use CV term, excluding "NOT" statements)       1
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U neuron
 |__larval DO2 motor neuron__________________________
embryonic/larval motor neuron                        |
 |__abdominal segment motor neuron___________________|
type Ib motor neuron                                 |
 |__larval DO2 motor neuron__________________________|
larval internal muscle motor neuron                  |
 |__larval DO2 motor neuron__________________________|
larval A1-7-innervating ISN motor neuron             |
 |__larval dorsal A1-7-innervating ISN motor neuron__|
                                                     larval A1-7-innervating DO2 motor neuron  1 rec.
                                                      |__larval DO2 motor neuron of abdominal 1 neuromere
                                                      |__larval DO2 motor neuron of abdominal 2 neuromere
                                                      |__larval DO2 motor neuron of abdominal 3 neuromere
                                                      |__larval DO2 motor neuron of abdominal 4 neuromere
                                                      |__larval DO2 motor neuron of abdominal 5 neuromere
                                                      |__larval DO2 motor neuron of abdominal 6 neuromere
                                                      |__larval DO2 motor neuron of metathoracic neuromere
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Is a abdominal segment motor neuron
larval dorsal A1-7-innervating ISN motor neuron
larval DO2 motor neuron
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VFB:FBbt_00110230