FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term neuroblast ID (Ontology) FBbt:00005146 (Fly Anatomy)
Definition Precursor of the central nervous system that derives from the neurogenic region of the ectoderm or the mesectoderm (Doe, 1992; Schmid et al., 1999; Crews, 2019). It produces neurons and/or glia (Doe, 1992; Beckervordersandforth et al., 2008). Neuroblasts may also divide during adult life to regenerate the adult brain (Fernandez-Hernandez et al., 2013).[ FlyBase:FBrf0055900 FlyBase:FBrf0112030 FlyBase:FBrf0205499 FlyBase:FBrf0222020 FlyBase:FBrf0244240 ]
Also Known As "NB" ; "neural stem cell"
Comment Adult neurogenesis demonstrated in the adult optic lobe in response to injury (Fernandez-Hernandez et al., 2013).
Links to External Ontologies
VFB:FBbt_00005146
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     356
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      24
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      57
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN     144
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 Images  Insertions Constructs
 neuroblast (all annotations which use CV term, excluding "NOT" statements)     361    113      5      2     94    172
     neuroblast | adult stage | ectopic       2       --       --       --       --       2
     neuroblast | adult stage | somatic clone       1       --       --       --       --       --
     neuroblast | decreased number | larval stage       9       --       --       --       --       6
     neuroblast | ectopic       6       --       --       --       --       4
     neuroblast | ectopic | embryonic stage       2       --       --       --       --       2
     neuroblast | ectopic | larval stage       4       --       --       --       --       3
     neuroblast | ectopic | larval stage | somatic clone       6       --       --       --       --       5
     neuroblast | ectopic | somatic clone       1       --       --       --       --       --
     neuroblast | embryonic stage      15       --       --       --       4      8
     neuroblast | embryonic stage 8 | maternal effect | increased number       1       --       --       --       --       --
     neuroblast | embryonic stage | germline clone       3       --       --       --       --       --
     neuroblast | germline clone       4       --       --       --       --       --
     neuroblast | heat sensitive       5       --       --       --       --       1
     neuroblast | increased number      20       --       --       --       1      9
     neuroblast | increased number | pupal stage       2       --       --       --       --       1
     neuroblast | increased number | somatic clone      16       --       --       --       1     12
     neuroblast | increased number | third instar larval stage       5       --       --       --       --       --
     neuroblast | larval stage      54       --       --       --       4     19
     neuroblast | larval stage | heat sensitive       1       --       --       --       --       --
     neuroblast | larval stage | increased number       2       --       --       --       --       --
     neuroblast | larval stage | increased number | temperature conditional       1       --       --       --       --       --
     neuroblast | larval stage | maternal effect       1       --       --       --       --       --
     neuroblast | larval stage | somatic clone       5       --       --       --       --       1
     neuroblast | larval stage | somatic clone | increased number       4       --       --       --       --       4
     neuroblast | P-stage       3       --       --       --       --       1
     neuroblast | P-stage | increased number       2       --       --       --       --       2
     neuroblast | P-stage | somatic clone       1       --       --       --       --       --
     neuroblast | progressive | somatic clone       1       --       --       --       --       --
     neuroblast | pupal stage      32       --       --       --       --      31
     neuroblast | pupal stage | somatic clone       3       --       --       --       --       1
     neuroblast | somatic clone      31       --       --       --      13      3
     neuroblast | somatic clone | increased number      10       --       --       --       --       1
     neuroblast | somatic clone | increased number | third instar larval stage       2       --       --       --       --       --
     neuroblast | somatic clone | third instar larval stage       1       --       --       --       1       --
     neuroblast | temperature conditional       2       --       --       --       --       2
     neuroblast | third instar larval stage      45       --       --       --       6     14
     neuroblast | third instar larval stage | conditional       1       --       --       --       --       --
     neuroblast | third instar larval stage | nutrition conditional       4       --       --       --       --       3
Spanning Tree (Parents/Children)
Only view relationship:
somatic precursor cell__
stem cell_______________|
                        somatic stem cell
                         |__neuroblast  3095 rec.
                             |__embryonic neuroblast 368 rec.
                             |   |__anterior protocerebral neuroblast(+) 7 rec.
                             |   |__central protocerebral neuroblast(+) 13 rec.
                             |   |__embryonic glioblast(+) 10 rec.
                             |   |__embryonic ventral midline neuroblast(+) 47 rec.
                             |   |__MP1 precursor 8 rec.
                             |   |__posterior protocerebral neuroblast(+) 12 rec.
                             |__glioblast 64 rec.
                             |   |__abdominal neuroblast NB6-4 40 rec.
                             |   |__embryonic glioblast(+) 10 rec.
                             |   |__longitudinal glioblast 1 rec.
                             |   |__maxillary neuroblast NB6-4
                             |__larval neuroblast 1523 rec.
                             |   |__larval terminal neuroblast(+) 8 rec.
                             |   |__optic neuroblast(+) 85 rec.
                             |__neuroglioblast 139 rec.
                             |   |__neuroblast CM1
                             |   |__neuroblast CM3
                             |   |__neuroblast CM4
                             |   |__neuroblast CP2
                             |   |__neuroblast DPMm1
                             |   |__neuroblast DPMpm1
                             |   |__neuroblast DPMpm2
                             |   |__neuroblast NB1-3 3 rec.
                             |   |__neuroblast NB2-3 16 rec.
                             |   |__neuroblast NB2-5(+) 19 rec.
                             |   |__neuroblast NB3-4(+) 18 rec.
                             |   |__neuroblast NB7-4(+) 31 rec.
                             |   |__thoracic neuroblast NB2-2
                             |   |__type I neuroglioblast(+) 93 rec.
                             |   |__type II neuroglioblast(+) 2 rec.
                             |__procephalic neuroblast 649 rec.
                             |   |__antennal lobe neuroblast(+) 13 rec.
                             |   |__deutocerebral neuroblast(+) 42 rec.
                             |   |__neuroblast BA(+) 4 rec.
                             |   |__neuroblast BLA(+)
                             |   |__neuroblast BLD(+) 3 rec.
                             |   |__neuroblast BLP(+) 4 rec.
                             |   |__neuroblast BLV(+) 1 rec.
                             |   |__neuroblast CP(+)
                             |   |__neuroblast DAL(+) 6 rec.
                             |   |__neuroblast DAM(+)
                             |   |__protocerebral neuroblast(+) 175 rec.
                             |   |__tritocerebral neuroblast(+) 35 rec.
                             |   |__type II neuroblast(+) 363 rec.
                             |__segmentally-repeated neuroblast 428 rec.
                             |   |__gnathal neuroblast(+)
                             |   |__longitudinal glioblast 1 rec.
                             |   |__neuroblast MNB(+) 30 rec.
                             |   |__neuroblast MP2(+) 36 rec.
                             |   |__neuroblast NB1-1(+) 35 rec.
                             |   |__neuroblast NB1-2(+) 14 rec.
                             |   |__neuroblast NB1-3 3 rec.
                             |   |__neuroblast NB2-1(+) 17 rec.
                             |   |__neuroblast NB2-2(+) 26 rec.
                             |   |__neuroblast NB2-3 16 rec.
                             |   |__neuroblast NB2-4(+) 24 rec.
                             |   |__neuroblast NB2-5(+) 19 rec.
                             |   |__neuroblast NB3-1(+) 13 rec.
                             |   |__neuroblast NB3-2(+) 26 rec.
                             |   |__neuroblast NB3-3(+) 39 rec.
                             |   |__neuroblast NB3-4(+) 18 rec.
                             |   |__neuroblast NB3-5(+) 22 rec.
                             |   |__neuroblast NB4-1(+) 15 rec.
                             |   |__neuroblast NB4-2(+) 53 rec.
                             |   |__neuroblast NB4-3(+) 12 rec.
                             |   |__neuroblast NB4-4(+) 10 rec.
                             |   |__neuroblast NB5-1(+) 11 rec.
                             |   |__neuroblast NB5-2(+) 32 rec.
                             |   |__neuroblast NB5-3(+) 35 rec.
                             |   |__neuroblast NB5-4(+) 20 rec.
                             |   |__neuroblast NB5-5 15 rec.
                             |   |__neuroblast NB5-6(+) 57 rec.
                             |   |__neuroblast NB5-7 9 rec.
                             |   |__neuroblast NB6-1(+) 19 rec.
                             |   |__neuroblast NB6-2(+) 20 rec.
                             |   |__neuroblast NB6-4(+) 86 rec.
                             |   |__neuroblast NB7-1(+) 32 rec.
                             |   |__neuroblast NB7-2(+) 23 rec.
                             |   |__neuroblast NB7-3(+) 44 rec.
                             |   |__neuroblast NB7-4(+) 31 rec.
                             |   |__neuroblast of ventral nervous system(+) 232 rec.
                             |   |__neuroblast X
                             |__stage 1 neuroblast 175 rec.
                             |   |__neuroblast MP2(+) 36 rec.
                             |   |__neuroblast NB1-1(+) 35 rec.
                             |   |__neuroblast NB2-5(+) 19 rec.
                             |   |__neuroblast NB3-2(+) 26 rec.
                             |   |__neuroblast NB3-5(+) 22 rec.
                             |   |__neuroblast NB5-2(+) 32 rec.
                             |   |__neuroblast NB5-3(+) 35 rec.
                             |   |__neuroblast NB5-6(+) 57 rec.
                             |   |__neuroblast NB7-1(+) 32 rec.
                             |   |__neuroblast NB7-4(+) 31 rec.
                             |__stage 2 neuroblast 104 rec.
                             |   |__neuroblast NB1-2(+) 14 rec.
                             |   |__neuroblast NB2-2(+) 26 rec.
                             |   |__neuroblast NB4-2(+) 53 rec.
                             |   |__neuroblast NB6-2(+) 20 rec.
                             |   |__neuroblast NB7-2(+) 23 rec.
                             |__stage 3 neuroblast 114 rec.
                             |   |__longitudinal glioblast 1 rec.
                             |   |__neuroblast NB1-3 3 rec.
                             |   |__neuroblast NB3-1(+) 13 rec.
                             |   |__neuroblast NB4-1(+) 15 rec.
                             |   |__neuroblast NB6-1(+) 19 rec.
                             |   |__neuroblast NB6-4(+) 86 rec.
                             |   |__neuroblast X
                             |__stage 4 neuroblast 102 rec.
                             |   |__neuroblast MNB(+) 30 rec.
                             |   |__neuroblast NB2-1(+) 17 rec.
                             |   |__neuroblast NB2-4(+) 24 rec.
                             |   |__neuroblast NB3-3(+) 39 rec.
                             |   |__neuroblast NB4-4(+) 10 rec.
                             |   |__neuroblast NB5-4(+) 20 rec.
                             |   |__neuroblast NB5-7 9 rec.
                             |__stage 5 neuroblast 75 rec.
                             |   |__neuroblast NB2-3 16 rec.
                             |   |__neuroblast NB3-4(+) 18 rec.
                             |   |__neuroblast NB4-3(+) 12 rec.
                             |   |__neuroblast NB5-1(+) 11 rec.
                             |   |__neuroblast NB5-5 15 rec.
                             |   |__neuroblast NB7-3(+) 44 rec.
                             |__type I neuroblast 142 rec.
                             |   |__neuroblast BAla1
                             |   |__neuroblast BAla2
                             |   |__neuroblast BAla3
                             |   |__neuroblast BAla4
                             |   |__neuroblast BAlc 1 rec.
                             |   |__neuroblast BAlp1
                             |   |__neuroblast BAlp3
                             |   |__neuroblast BAlp4
                             |   |__neuroblast BAlv
                             |   |__neuroblast BAmas1
                             |   |__neuroblast BAmas2(+) 3 rec.
                             |   |__neuroblast BAmd1(+)
                             |   |__neuroblast BAmd2
                             |   |__neuroblast BAmv1
                             |   |__neuroblast BAmv2
                             |   |__neuroblast BAmv3 1 rec.
                             |   |__neuroblast BLAd1
                             |   |__neuroblast BLAd2
                             |   |__neuroblast BLAd3
                             |   |__neuroblast BLAd5
                             |   |__neuroblast BLAl1
                             |   |__neuroblast BLAl2
                             |   |__neuroblast BLAv1
                             |   |__neuroblast BLAv2
                             |   |__neuroblast BLAvm
                             |   |__neuroblast BLD1
                             |   |__neuroblast BLD2
                             |   |__neuroblast BLD3
                             |   |__neuroblast BLD4
                             |   |__neuroblast BLD5
                             |   |__neuroblast BLD6
                             |   |__neuroblast BLP1
                             |   |__neuroblast BLP2
                             |   |__neuroblast BLP4
                             |   |__neuroblast BLVa1
                             |   |__neuroblast BLVa2
                             |   |__neuroblast BLVa2a
                             |   |__neuroblast BLVa2b
                             |   |__neuroblast BLVa2c
                             |   |__neuroblast BLVp1
                             |   |__neuroblast BLVp2
                             |   |__neuroblast CM5
                             |   |__neuroblast CM6
                             |   |__neuroblast CP1
                             |   |__neuroblast CP4
                             |   |__neuroblast CP5
                             |   |__neuroblast CP6
                             |   |__neuroblast DALcl1
                             |   |__neuroblast DALcl2
                             |   |__neuroblast DALcm1
                             |   |__neuroblast DALcm2
                             |   |__neuroblast DALd
                             |   |__neuroblast DALl1
                             |   |__neuroblast DALl2
                             |   |__neuroblast DALv1
                             |   |__neuroblast DALv2 6 rec.
                             |   |__neuroblast DALv3
                             |   |__neuroblast DAMd1
                             |   |__neuroblast DPLal1
                             |   |__neuroblast DPLal2
                             |   |__neuroblast DPLal3
                             |   |__neuroblast DPLam
                             |   |__neuroblast DPLc1
                             |   |__neuroblast DPLc2
                             |   |__neuroblast DPLc3
                             |   |__neuroblast DPLc5
                             |   |__neuroblast DPLc6
                             |   |__neuroblast DPLd
                             |   |__neuroblast DPLl1
                             |   |__neuroblast DPLl2
                             |   |__neuroblast DPLl3
                             |   |__neuroblast DPLm1
                             |   |__neuroblast DPLm2
                             |   |__neuroblast DPLp1
                             |   |__neuroblast DPLp2
                             |   |__neuroblast DPLpv
                             |   |__neuroblast DPMl1
                             |   |__neuroblast DPMl2
                             |   |__neuroblast DPMpl1
                             |   |__neuroblast DPMpl2
                             |   |__neuroblast DPMpl3
                             |   |__neuroblast LHa4
                             |   |__neuroblast MBp1
                             |   |__neuroblast MBp2
                             |   |__neuroblast MBp3
                             |   |__neuroblast MBp4
                             |   |__neuroblast SLPal4
                             |   |__neuroblast SLPpm4
                             |   |__neuroblast SMPad1(+)
                             |   |__neuroblast SMPad2
                             |   |__neuroblast SMPad4
                             |   |__neuroblast VLPl1
                             |   |__neuroblast VPNd2
                             |   |__neuroblast VPNd3
                             |   |__neuroblast VPNd4
                             |   |__neuroblast VPNp2
                             |   |__neuroblast VPNp3
                             |   |__neuroblast VPNv1
                             |   |__neuroblast VPNv2
                             |   |__neuroblast VPNv3
                             |__type III neuroblast 1 rec.
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CL:0000338
VFB:FBbt_00005146