FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term neuroblast NB5-1 ID (Ontology) FBbt:00001424 (Fly Anatomy)
Definition Neuroblast that delaminates at S5 in the medial column that generates approximately 6-9 local interneurons, some of which project across the posterior commissure (Schmid et al., 1999). In the embryo, one of these cells can be found in each hemisegment from S2-A8 (Birkholz et al., 2013; Urbach et al., 2016). It does not generate a postembryonic lineage and, at least in thoracic segments, it is lost before the end of embryogenesis (Lacin and Truman, 2016).[ FlyBase:FBrf0098344 FlyBase:FBrf0112030 FlyBase:FBrf0221210 FlyBase:FBrf0228122 FlyBase:FBrf0231327 FlyBase:FBrf0232096 ]
Also Known As "lineage 26 neuroblast" ; "lineage NB5-1 neuroblast" ; "NB 26" (for all, see Synonyms field below)
Comment Schmid et al. (1999) comment that NB5-2 may give rise to a larger number of clones, including at least one motorneuron, but were not observed due to observational restrictions.
Links to External Ontologies
VFB:FBbt_00001424
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       2
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       2
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 neuroblast NB5-1 (all annotations which use CV term, excluding "NOT" statements)       3      5      2      1
Spanning Tree (Parents/Children)
Only view relationship:
neuroblast
 |__stage 5 neuroblast_______________
 |__segmentally-repeated neuroblast__|
ectodermal derivative                |
 |__segmentally-repeated neuroblast__|
                                     neuroblast NB5-1  11 rec.
                                      |__labial neuroblast NB5-1
                                      |__maxillary neuroblast NB5-1
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a stage 5 neuroblast
segmentally-repeated neuroblast
Part of
hide Synonyms & Secondary IDs
Synonyms
  • "lineage 26 neuroblast" EXACT[ FlyBase:FBrf0231327 ]
    "lineage NB5-1 neuroblast" EXACT
    "NB 26" EXACT[ FlyBase:FBrf0209606 ]
    "neuroblast 26" EXACT SECONDARY_VNC_LINEAGE
    "neuroblast NB5-1" EXACT PRIMARY_VNC_LINEAGE
Secondary IDs
hide External Crossreferences & Linkouts
VFB:FBbt_00001424