FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term neuroblast NB5-5 ID (Ontology) FBbt:00001425 (Fly Anatomy)
Definition Neuroblast that delaminates at S5 and generates 8-11 large neurons including interneurons and neurosecretory cells (Schmid et al., 1999). In the embryo, one of these cells can be found in each hemisegment from T1-A9 (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 NB5-5 neuroblast" ; "neuroblast NB5-5"
CommentSchmid et al. (1999) suggest that NB5-5 may be equivalent to clone Y described by Schmidt et al. (1997). A neuroblast similar to NB5-5 was found in the embryonic mandibular (S1) neuromere by Urbach et al. (2016), but NB5-5 is absent from S2 and S3 and this S1 cell had several differences in marker expression, making serial homology unclear.
Links to External Ontologies
VFB:FBbt_00001425
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 neuroblast NB5-5 (all annotations which use CV term, excluding "NOT" statements)
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central nervous system
 |__segmentally-repeated neuroblast__
neuroblast                           |
 |__stage 5 neuroblast_______________|
 |__segmentally-repeated neuroblast__|
ectodermal derivative                |
 |__segmentally-repeated neuroblast__|
                                     neuroblast NB5-5  15 rec.
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Is a stage 5 neuroblast
segmentally-repeated neuroblast
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Synonyms
  • "clone Y" RELATED[ FlyBase:FBrf0098344 ]
    "lineage NB5-5 neuroblast" EXACT
    "neuroblast NB5-5" EXACT PRIMARY_VNC_LINEAGE
Secondary IDs
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VFB:FBbt_00001425