FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval LN period neuron ID (Ontology) FBbt:00001913 (Fly Anatomy)
Definition Neuron whose soma is located in a cluster between the larval optic lobe and the central brain that shows strong cycling of Period (FBgn0003068) expression from 4-5hr old L1 larvae located starting from around 4-5 hours after hatching. There are about 5 neurons per cluster.[ FlyBase:FBrf0098279 ]
Comment Expression of Period was determined by per-lacZ fusion expression (Kaneko et al., 1997). Since larvae appear not to have LNd or l-LNv neurons (Kaneko et al., 1997), this term may be equivalent to FBbt:00100177 'larval s-LNv neuron' - https://orcid.org/0000-0002-1373-1705.
Links to External Ontologies
VFB:FBbt_00001913
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       6
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       6
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 larval LN period neuron (all annotations which use CV term, excluding "NOT" statements)       6      4      4     17
Spanning Tree (Parents/Children)
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larval neuron_____
pacemaker neuron__|
                  larval pacemaker neuron
                   |__larval LN period neuron  84 rec.
                       |__larval LNd neuron 3 rec.
                       |__larval s-LNv neuron 61 rec.
                           |__larval Pdf negative s-LNv neuron 3 rec.
                           |__larval s-LNv Pdf neuron 13 rec.
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Is a larval pacemaker neuron
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Synonyms
  • "larval lateral neuron" RELATED
    "LN" RELATED
Secondary IDs
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VFB:FBbt_00001913