FB2025_05 , released December 11, 2025

General Information
Term	neuroblast CM1	ID (Ontology)	FBbt:00050059 (Fly Anatomy)
Definition	Type II centromedial neuroblast of the posterior deutocerebrum (Pereanu and Hartenstein, 2006; Hartenstein et al., 2015). Its primary lineage enters the ventromedial cerebrum and contributes to the longitudinal ventral posterior fascicle (Hartenstein et al., 2015). One main secondary tract follows this primary tract and another enters at the tip of the protocerebral bridge and projects anteriorly in the medial equatorial fascicle (Lovick et al., 2013). It the adult, secondary neurons of this lineage mainly arborize in the adult lateral accessory lobe and wedge (Ito et al., 2013). It also produces adult central brain and optic lobe glial cells (Ren et al., 2018).[ FlyBase:FBrf0194268 FlyBase:FBrf0214495 FlyBase:FBrf0221412 FlyBase:FBrf0221438 FlyBase:FBrf0223329 FlyBase:FBrf0229672 FlyBase:FBrf0239137 ]
Also Known As	"neuroblast CM1" ; "neuroblast DM5"
Comment	DM5 previously mapped to CM3 based on FlyBase:FBrf0194268 and FlyBase:FBrf0214495. This was corrected to CM1 based on FlyBase:FBrf0260535 and personally checked by Volker Hartenstein.
Links to External Ontologies
	VFB:FBbt_00050059
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 CM1

ID (Ontology)

FBbt:00050059 (Fly Anatomy)

Definition

Type II centromedial neuroblast of the posterior deutocerebrum (Pereanu and Hartenstein, 2006; Hartenstein et al., 2015). Its primary lineage enters the ventromedial cerebrum and contributes to the longitudinal ventral posterior fascicle (Hartenstein et al., 2015). One main secondary tract follows this primary tract and another enters at the tip of the protocerebral bridge and projects anteriorly in the medial equatorial fascicle (Lovick et al., 2013). It the adult, secondary neurons of this lineage mainly arborize in the adult lateral accessory lobe and wedge (Ito et al., 2013). It also produces adult central brain and optic lobe glial cells (Ren et al., 2018).[ FlyBase:FBrf0194268 FlyBase:FBrf0214495 FlyBase:FBrf0221412 FlyBase:FBrf0221438 FlyBase:FBrf0223329 FlyBase:FBrf0229672 FlyBase:FBrf0239137 ]

Also Known As

"neuroblast CM1" ; "neuroblast DM5"

Comment

DM5 previously mapped to CM3 based on FlyBase:FBrf0194268 and FlyBase:FBrf0214495. This was corrected to CM1 based on FlyBase:FBrf0260535 and personally checked by Volker Hartenstein.

Links to External Ontologies

VFB:FBbt_00050059

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	neuroglioblast type II neuroblast neuroblast CM
Part of
Synonyms & Secondary IDs
Synonyms
	"neuroblast CM1" EXACT HARTENSTEIN_BRAIN_LINEAGE[ FlyBase:FBrf0223298 ] "neuroblast DM5" EXACT ITO_LEE_BRAIN_LINEAGE[ FlyBase:FBrf0223298 ]
Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00050059

Spanning Tree View Settings

Parents/Children
View Depth

Relationships

Is a

neuroglioblast
type II neuroblast
neuroblast CM

Part of

Synonyms & Secondary IDs

Synonyms

"neuroblast CM1" EXACT HARTENSTEIN_BRAIN_LINEAGE[ FlyBase:FBrf0223298 ]
"neuroblast DM5" EXACT ITO_LEE_BRAIN_LINEAGE[ FlyBase:FBrf0223298 ]

Secondary IDs

External Crossreferences & Linkouts

VFB:FBbt_00050059