FB2026_03 , released September 17, 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"

Comment

Links to External Ontologies

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Results list data from multiple species. Choose a record type above to open its HitList.

Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Alleles (FBal)	PHENOTYPIC_CLASS
Constructs (FBtp)	PHENOTYPIC_CLASS

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles	Constructs
abnormal cell number (all annotations which use CV term, excluding "NOT" statements)
abnormal cell number \| adult stage
abnormal cell number \| adult stage \| female		--
abnormal cell number \| adult stage \| female \| progressive		--
abnormal cell number \| adult stage \| progressive		--
abnormal cell number \| adult stage \| recessive		--
abnormal cell number \| adult stage \| somatic clone
abnormal cell number \| cell autonomous \| pupal stage \| somatic clone		--
abnormal cell number \| conditional
abnormal cell number \| dominant \| first instar larval stage		--
abnormal cell number \| dominant \| prepupal stage		--
abnormal cell number \| dominant \| wandering third instar larval stage		--
abnormal cell number \| embryonic stage
abnormal cell number \| embryonic stage 12
abnormal cell number \| embryonic stage \| maternal effect		--
abnormal cell number \| female
abnormal cell number \| female \| progressive		--
abnormal cell number \| first instar larval stage		--
abnormal cell number \| germline clone \| oogenesis		--
abnormal cell number \| germline clone \| progressive \| spermatogenesis		--
abnormal cell number \| larval stage
abnormal cell number \| larval stage \| conditional
abnormal cell number \| larval stage \| somatic clone
abnormal cell number \| male		--
abnormal cell number \| male \| spermatogenesis		--
abnormal cell number \| oogenesis
abnormal cell number \| oogenesis \| recessive		--
abnormal cell number \| oogenesis \| somatic clone		--
abnormal cell number \| oogenesis \| temperature conditional		--
abnormal cell number \| P-stage
abnormal cell number \| P-stage \| somatic clone
abnormal cell number \| prepupal stage
abnormal cell number \| pupal stage
abnormal cell number \| pupal stage \| somatic clone
abnormal cell number \| recessive		--
abnormal cell number \| somatic clone
abnormal cell number \| somatic clone \| spermatogenesis
abnormal cell number \| somatic clone \| third instar larval stage		--
abnormal cell number \| spermatogenesis
abnormal cell number \| third instar larval stage
abnormal cell number \| wandering third instar larval stage

Spanning Tree (Parents/Children)

  phenotypic class
   |__phenotype
       |__abnormal cell number  5443 rec.
           |__decreased cell number 2741 rec.
           |   |__hypoplasia 68 rec.
           |__increased cell number 2667 rec.
               |__hyperplasia 466 rec.
               |__neoplasia 378 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	phenotype
Part of
Synonyms & Secondary IDs
Synonyms
	"cell number defective" EXACT
Secondary IDs

External Crossreferences & Linkouts