FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term neuroblast NB2-2 ID (Ontology) FBbt:00001385 (Fly Anatomy)
Definition Neuroblast that delaminates at S2 and generates three to four primary motorneurons that innervate anterior lateral muscles via the SNa and a large number of interneurons (Schmid et al., 1999). In the embryo, one of these cells can be found in each hemisegment from S1-A10 (Birkholz et al., 2013; Urbach et al., 2016). In the larva, it resumes proliferation in all thoracic segments (Lacin and Truman, 2016). The neurons that develop from this neuroblast after larval hatching form postembryonic lineage 10 (Lacin and Truman, 2016).[ FlyBase:FBrf0055900 FlyBase:FBrf0084809 FlyBase:FBrf0112030 FlyBase:FBrf0221210 FlyBase:FBrf0228122 FlyBase:FBrf0231327 FlyBase:FBrf0232096 ]
Also Known As"lineage 10 neuroblast" ; "lineage NB2-2 neuroblast" ; "NB 10" (for all, see Synonyms field below)
CommentOriginally referred to as NB2-3 by Doe (1992), this was renamed to NB2-2 by Broadus et al. (1995) to keep the names of row 2 neuroblasts consistent with their position in Schistocerca.
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VFB:FBbt_00001385
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 neuroblast NB2-2 (all annotations which use CV term, excluding "NOT" statements)
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central nervous system
 |__segmentally-repeated neuroblast__
neuroblast                           |
 |__stage 2 neuroblast_______________|
 |__segmentally-repeated neuroblast__|
ectodermal derivative                |
 |__segmentally-repeated neuroblast__|
                                     neuroblast NB2-2  26 rec.
                                      |__abdominal neuroblast NB2-2
                                      |__labial neuroblast NB2-2
                                      |__mandibular neuroblast NB2-2
                                      |__maxillary neuroblast NB2-2
                                      |__thoracic neuroblast NB2-2
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VFB:FBbt_00001385