FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

Ppv1 neuroblast

ID (Ontology)

FBbt:00005925 (Fly Anatomy)

Definition

Neuroblast 1 of the posterior ventral protocerebrum.[ FlyBase:FBrf0161021 ]

Comment

Numbering also indicates relative position: we follow the nomenclature of Urbach et al. (2003), in which neuroblasts are numbered from anterior-to-posterior and ventral-to-dorsal (so that numbers reflect relative positions along the dorsoventral axis). Figure 1 of Urbach et al., 2003, provides a survey of the spatial organization of the embryonic head and brain neuroblasts of a stage 11 embryo.

Links to External Ontologies

VFB:FBbt_00005925

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

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	Constructs
Ppv1 neuroblast (all annotations which use CV term, excluding "NOT" statements)
Ppv1 neuroblast \| embryonic stage 11		--

Spanning Tree (Parents/Children)

  posterior protocerebral neuroblast
   |__ventral posterior protocerebral neuroblast
       |__Ppv1 neuroblast  6 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	ventral posterior protocerebral neuroblast
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00005925