FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval RP5 motor neuron ID (Ontology) FBbt:00001457 (Fly Anatomy)
Definition Most anteriorly located larval RP motor neuron, developing from neuroblast NB3-1 (Schmid et al., 1999). It innervates all ventral longitudinal (VL) and ventral oblique (VO) muscles except for VO3 and VO6 (muscles 6, 7, 12-16 and 30) in abdominal segments and all ventral longitudinal muscles (VL1-4; muscles 6, 7 ,12 and 13) in thoracic segments (Schmid et al., 1999, Mauss et al., 2009).[ FlyBase:FBrf0053781 FlyBase:FBrf0099344 FlyBase:FBrf0112030 ]
Also Known As "larval vCE neuron" ; "larval ventral common exciter" ; "MNSNb/d-Is" (for all, see Synonyms field below)
Comment Innervation pattern (Mauss et al., 2009) makes this equivalent to the MNSNb/d-Is neuron of Huang and Chiba (2001), not the MN12-Ib neuron as postulated by Huang and Chiba (2001).
Links to External Ontologies
VFB:FBbt_00001457
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       9
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       3
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 larval RP5 motor neuron (all annotations which use CV term, excluding "NOT" statements)       9      7      4      8
Spanning Tree (Parents/Children)
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larval neuron
 |__RP neuron____________________________
motor neuron                             |
 |__type Is motor neuron_________________|
embryonic/larval motor neuron            |
 |__larval internal muscle motor neuron__|
NB3-1 lineage primary neuron             |
 |__lineage NB3-1 primary motor neuron___|
primary motor neuron                     |
 |__lineage NB3-1 primary motor neuron___|
                                         larval RP5 motor neuron  37 rec.
                                          |__larval A1-7-innervating RP5 motor neuron 11 rec.
                                              |__larval RP5 motor neuron of abdominal 1 neuromere
                                              |__larval RP5 motor neuron of abdominal 2 neuromere
                                              |__larval RP5 motor neuron of abdominal 3 neuromere
                                              |__larval RP5 motor neuron of abdominal 4 neuromere
                                              |__larval RP5 motor neuron of abdominal 5 neuromere
                                              |__larval RP5 motor neuron of abdominal 6 neuromere
                                              |__larval RP5 motor neuron of metathoracic neuromere
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Is a RP neuron
lineage NB3-1 primary motor neuron
type Is motor neuron
larval internal muscle motor neuron
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VFB:FBbt_00001457