FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term abnormal cell number ID (Ontology) FBcv:0000709 (FlyBase CV)
Definition Phenotype that is an increase or decrease in the number of cells in a whole animal or in some specific organ, tissue or clone of cells compared to wild-type. This phenotype is not necessarily accompanied by defects in cell growth - there may be a greater or lesser number of cells in an otherwise normal volume of tissue.
Also Known As "cell number defective"
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Records annotated with this term OR any of its CHILD TERMS
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Data Class Field Records
Alleles (FBal)  PHENOTYPIC_CLASS     497
Constructs (FBtp)  PHENOTYPIC_CLASS     315
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 Constructs
 abnormal cell number (all annotations which use CV term, excluding "NOT" statements)     497    315
     abnormal cell number | adult stage     110     83
     abnormal cell number | adult stage | female       1       --
     abnormal cell number | adult stage | female | progressive       1       --
     abnormal cell number | adult stage | progressive       1       --
     abnormal cell number | adult stage | recessive       1       --
     abnormal cell number | adult stage | somatic clone      11      6
     abnormal cell number | cell autonomous | pupal stage | somatic clone       1       --
     abnormal cell number | conditional       2      1
     abnormal cell number | dominant | first instar larval stage       1       --
     abnormal cell number | dominant | prepupal stage       1       --
     abnormal cell number | dominant | wandering third instar larval stage       2       --
     abnormal cell number | embryonic stage      74     40
     abnormal cell number | embryonic stage 12       5      3
     abnormal cell number | embryonic stage | maternal effect       4       --
     abnormal cell number | female       8      7
     abnormal cell number | female | progressive       1       --
     abnormal cell number | first instar larval stage       2       --
     abnormal cell number | germline clone | oogenesis       2       --
     abnormal cell number | germline clone | progressive | spermatogenesis       1       --
     abnormal cell number | larval stage      62     41
     abnormal cell number | larval stage | conditional       5      3
     abnormal cell number | larval stage | somatic clone      11      3
     abnormal cell number | male       1       --
     abnormal cell number | male | spermatogenesis       1       --
     abnormal cell number | oogenesis      97     64
     abnormal cell number | oogenesis | recessive       2       --
     abnormal cell number | oogenesis | somatic clone       2       --
     abnormal cell number | oogenesis | temperature conditional       1       --
     abnormal cell number | P-stage      36     32
     abnormal cell number | P-stage | somatic clone      12      8
     abnormal cell number | prepupal stage       2      1
     abnormal cell number | pupal stage       2      1
     abnormal cell number | pupal stage | somatic clone       2      3
     abnormal cell number | recessive       1       --
     abnormal cell number | somatic clone       6      3
     abnormal cell number | somatic clone | spermatogenesis       6      3
     abnormal cell number | somatic clone | third instar larval stage       1       --
     abnormal cell number | spermatogenesis      31     26
     abnormal cell number | third instar larval stage       9      2
     abnormal cell number | wandering third instar larval stage       2      2
Spanning Tree (Parents/Children)
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  phenotypic class
   |__phenotype
       |__abnormal cell number  5315 rec.
           |__decreased cell number 2678 rec.
           |   |__hypoplasia 68 rec.
           |__increased cell number 2615 rec.
               |__hyperplasia 466 rec.
               |__neoplasia 378 rec.
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