FB2026_03 , released September 17, 2026
CV Term Report
Help Close All Open All
General Information
Term larval A1-7-innervating VO2 motor neuron ID (Ontology) FBbt:00002199 (Fly Anatomy)
Definition RP1 motor neuron of A1-7. 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 VO2 muscle (Mauss et al., 2009) via type Ib boutons. Its cell body is located in the segment anterior to the muscle it innervates (Landgraf et al., 1997). During metamorphosis, these neurons that have cell bodies in the metathoracic or abdominal 1 neuromeres are re-targeted to innervate temporary eclosion muscle VL2 and become adult persistent motor neuron 14-Ib (Banerjee et al., 2016). The abdominal 2 and 3 neurons die during metamorphosis (Banerjee et al., 2016).[ FlyBase:FBrf0064795 FlyBase:FBrf0099344 FlyBase:FBrf0208790 FlyBase:FBrf0234013 ]
Also Known As"A1-7 MN14-Ib"
CommentInnervation of muscle 14 makes this equivalent to the MN14-Ib neuron of Hoang and Chiba, 2001.
Links to External Ontologies
VFB:FBbt_00002199
Annotations
Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

    • Results list data from multiple species. Choose a record type above to open its HitList.
Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 larval A1-7-innervating VO2 motor neuron (all annotations which use CV term, excluding "NOT" statements)
Spanning Tree (Parents/Children)
Only view relationship:
Vocabulary search 
RP neuron
 |__larval VO2 motor neuron___________________________
embryonic/larval motor neuron                         |
 |__abdominal segment motor neuron____________________|
lineage NB3-1 primary motor neuron                    |
 |__larval VO2 motor neuron___________________________|
type Ib motor neuron                                  |
 |__larval VO2 motor neuron___________________________|
larval internal muscle motor neuron                   |
 |__larval VO2 motor neuron___________________________|
larval A1-7-innervating ISN motor neuron              |
 |__larval lateral A1-7-innervating ISN motor neuron__|
                                                      larval A1-7-innervating VO2 motor neuron  8 rec.
                                                       |__larval VO2 motor neuron of abdominal 1 neuromere 2 rec.
                                                       |__larval VO2 motor neuron of abdominal 2 neuromere
                                                       |__larval VO2 motor neuron of abdominal 3 neuromere
                                                       |__larval VO2 motor neuron of abdominal 4 neuromere
                                                       |__larval VO2 motor neuron of abdominal 5 neuromere
                                                       |__larval VO2 motor neuron of abdominal 6 neuromere
                                                       |__larval VO2 motor neuron of metathoracic neuromere 2 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a larval VO2 motor neuron
abdominal segment motor neuron
larval lateral A1-7-innervating ISN motor neuron
Part of
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts
VFB:FBbt_00002199