FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval optic neuropil ID (Ontology) FBbt:00048289 (Fly Anatomy)
Definition Small neuropil compartment of the larval optic lobe that contains the axons of photoreceptors. It is the first center for visual processing in the larval brain. It is largely surrounded by the outer optic anlage at earlier developmental stages and becomes sandwiched between the developing proximal medulla and the inner optic anlage by third instar. It is incorporated into the adult optic lobe as the accessory medulla.[ FlyBase:FBrf0215208 ]
Also Known As "LON"
Comment
Links to External Ontologies
VFB:FBbt_00048289
Annotations
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)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       3
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       1
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Relevant FlyBase reports
 Alleles Insertions Constructs
 larval optic neuropil (all annotations which use CV term, excluding "NOT" statements)       3      1      1
Spanning Tree (Parents/Children)
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  synaptic neuropil domain
   |__larval sensory compartment
       |__larval optic neuropil  5 rec.
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Is a larval sensory compartment
Part of embryonic/larval optic lobe
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Synonyms
Secondary IDs
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larvalbrain_neuropil:379
larvalbrain_neuropil:557
VFB:FBbt_00048289