FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term LNd neuron ID (Ontology) FBbt:00004045 (Fly Anatomy)
Definition Lateral period-expressing neuron (LN) of the adult brain whose cell body is located in the dorsal-most cluster of LNs. There are six of these cells per hemisphere (Schubert et al., 2018; Ma et al., 2021). Initially all LNds follow the anterior optic tract (AOT) to the surface of the lateral horn (LH) (Schubert et al., 2018). These neurons project axons to the dorsal protocerebrum and terminate predominantly in the neuropil region close to the pars intercerebralis. These projections overlap with those of the DN neurons and many project contralaterally through the dorsal fusion commissure. These cells are a heterogeneous population with different combinations of cryptochrome (CRY), ion transport peptide (ITP) and neuropeptide F (sNPF) expression (Schubert et al., 2018). They are evening cells (Liang et al., 2016; Liang et al., 2017; Delventhal et al., 2019).[ FlyBase:FBrf0193849 FlyBase:FBrf0205220 FlyBase:FBrf0225654 FlyBase:FBrf0231110 FlyBase:FBrf0235909 FlyBase:FBrf0238313 FlyBase:FBrf0243753 FlyBase:FBrf0247880 ]
Also Known As"dorsal adult lateral neuron" ; "dorsolateral neurons" ; "LNd"
CommentProjection of axons vs dendrites judged on the basis of the presence (dendrites) or absence (axons) of synaptobrevin (Helfrich-Forster et al., 2007).
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VFB:FBbt_00004045
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Split System Combinations Genes Insertions Constructs
 LNd neuron (all annotations which use CV term, excluding "NOT" statements)
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adult brain
 |__LN period neuron____
adult CNS neuron        |
 |__LN period neuron____|
adult pacemaker neuron  |
 |__LN period neuron____|
 |__adult evening cell__|
                        LNd neuron  99 rec.
                         |__adult NPF L1-s neuron (male)
                         |__CRY negative LNd neuron 2 rec.
                         |__extra LNd neuron
                         |__ITP and CRY expressing LNd neuron 5 rec.
                         |__sNPF and CRY expressing LNd neuron 1 rec.
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adult evening cell
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VFB:FBbt_00004045