FB2026_03 , released September 17, 2026

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

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Alleles (FBal)	PHENOTYPE_MANIFEST_IN
Insertions (FBti)	EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)	PHENOTYPE_MANIFEST_IN
Constructs (FBtp)	PHENOTYPE_MANIFEST_IN

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles	Genes	Insertions	Constructs
larval LN period neuron (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

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.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	larval pacemaker neuron
Part of
Synonyms & Secondary IDs
Synonyms
	"larval lateral neuron" RELATED "LN" RELATED
Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00001913