FB2025_05 , released December 11, 2025

General Information
Term	neuroblast BAmv2	ID (Ontology)	FBbt:00100553 (Fly Anatomy)
Definition	Neuroblast of the deutocerebrum (Kumar et al., 2009) with a relatively ventromedial location in the basoanterior larval brain (Pereanu and Hartenstein, 2006). It generates a lineage similar to that of BAmv1 (LALv1), entering the neuropil close to the antennal lobe and contributing to the medial longitudinal ventral fascicle in both adult and larva (Lovick et al., 2013; Hartenstein et al., 2015). Its secondary lineage has a less complex branching pattern that of the BAmv1 lineage (Wong et al., 2013). There are approximately 65 cells of this lineage in the adult, collectively innervating many neuropil regions (Ito et al., 2013; Yu et al., 2013).[ FlyBase:FBrf0194268 FlyBase:FBrf0208824 FlyBase:FBrf0221412 FlyBase:FBrf0221438 FlyBase:FBrf0223298 FlyBase:FBrf0223329 FlyBase:FBrf0229672 ]
Also Known As	"neuroblast BAmv2" ; "neuroblast PSa1"
Comment	BAmv2 previously mapped to VESa2 based on FlyBase:FBrf02341285. This was corrected to PSa1 based on FlyBase:FBrf0260535 and personally checked by Volker Hartenstein.
Links to External Ontologies
	VFB:FBbt_00100553
Annotations
Records annotated with this term OR any of its CHILD TERMS
No relevant records available
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
No relevant statements available

General Information

Term

neuroblast BAmv2

ID (Ontology)

FBbt:00100553 (Fly Anatomy)

Definition

Neuroblast of the deutocerebrum (Kumar et al., 2009) with a relatively ventromedial location in the basoanterior larval brain (Pereanu and Hartenstein, 2006). It generates a lineage similar to that of BAmv1 (LALv1), entering the neuropil close to the antennal lobe and contributing to the medial longitudinal ventral fascicle in both adult and larva (Lovick et al., 2013; Hartenstein et al., 2015). Its secondary lineage has a less complex branching pattern that of the BAmv1 lineage (Wong et al., 2013). There are approximately 65 cells of this lineage in the adult, collectively innervating many neuropil regions (Ito et al., 2013; Yu et al., 2013).[ FlyBase:FBrf0194268 FlyBase:FBrf0208824 FlyBase:FBrf0221412 FlyBase:FBrf0221438 FlyBase:FBrf0223298 FlyBase:FBrf0223329 FlyBase:FBrf0229672 ]

Also Known As

"neuroblast BAmv2" ; "neuroblast PSa1"

Comment

BAmv2 previously mapped to VESa2 based on FlyBase:FBrf02341285. This was corrected to PSa1 based on FlyBase:FBrf0260535 and personally checked by Volker Hartenstein.

Links to External Ontologies

VFB:FBbt_00100553

Annotations

Records annotated with this term OR any of its CHILD TERMS

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

No relevant statements available

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	deutocerebral neuroblast type I neuroblast neuroblast BA
Part of
Synonyms & Secondary IDs
Synonyms
	"neuroblast BAmv2" EXACT HARTENSTEIN_BRAIN_LINEAGE "neuroblast PSa1" EXACT ITO_LEE_BRAIN_LINEAGE
Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00100553

Spanning Tree View Settings

Parents/Children
View Depth

Relationships

Is a

deutocerebral neuroblast
type I neuroblast
neuroblast BA

Part of

Synonyms & Secondary IDs

Synonyms

"neuroblast BAmv2" EXACT HARTENSTEIN_BRAIN_LINEAGE
"neuroblast PSa1" EXACT ITO_LEE_BRAIN_LINEAGE

Secondary IDs

External Crossreferences & Linkouts

VFB:FBbt_00100553