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General Information
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| Term |
LNv neuron |
ID (Ontology) |
FBbt:00004046 (Fly Anatomy) |
| Definition |
Lateral period-expressing neuron (LN) of the adult brain whose cell body is located in the ventral cluster of LNs, at the level of the esophageal foramen (Helfrich-Forster, 1998). It has neurites associated with the accessory medulla (aMe) (Helfrich-Forster et al., 2007). The LN neuronal group are necessary and sufficient for generation of robust adult locomotor rhythms in the absence of environmental cues (Helfrich-Forster et al., 2007). There are approximately nine of these cells per hemisphere (Ma et al., 2021). They are peptidergic, with eight per hemisphere expressing Pdf and the other expressing ion transport peptide (Johard et al., 2009; Ma et al., 2021).[ FlyBase:FBrf0056576 FlyBase:FBrf0101921 FlyBase:FBrf0123172 FlyBase:FBrf0193849 FlyBase:FBrf0208477 FlyBase:FBrf0247880 ] |
| Also Known As |
"LNv" |
| Comment |
Assertion that LNvs are necessary and sufficient for locomotor rhythms based on mosaic analysis (Ewer et al., 1992), and by similarity of period-mutant flies to those with ablation of Pdf-expressing neurons (i.e. all LNvs except one cell), (Renn et al., 1999). |
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Links to External Ontologies
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VFB:FBbt_00004046
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Annotations
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Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
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| Data Class | Field | Records |
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| Alleles (FBal) | PHENOTYPE_MANIFEST_IN | 50 | | Insertions (FBti) | EXPRESSION_STAGE_TISSUE_POSITION | 6 | | Insertions (FBti) | PHENOTYPE_MANIFEST_IN | 2 | | Constructs (FBtp) | PHENOTYPE_MANIFEST_IN | 29 |
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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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| Full annotation statements | Relevant FlyBase reports |
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| Alleles | Genes | | Insertions | Constructs |
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LNv neuron (all annotations which use CV term, excluding "NOT" statements) | 51 | 11 | 1 | 8 | 45 | LNv neuron | adult stage | 2 | -- | -- | -- | 2 | LNv neuron | larval stage | 13 | -- | -- | 1 | 10 | LNv neuron | larval stage | somatic clone | 2 | -- | -- | -- | 2 | LNv neuron | third instar larval stage | 8 | -- | -- | -- | 8 |
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Relationships