FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

semi-sterile

ID (Ontology)

FBcv:0000365 (FlyBase CV)

Definition

A phenotype that is a reduction in the ability to produce fertilized eggs as a result of mating to below 50% of wild-type.

Comment

Links to External Ontologies

Annotations

Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

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
Insertions (FBti)	STERILITY
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	Insertions	Constructs
semi-sterile (all annotations which use CV term, excluding "NOT" statements)
semi-sterile \| conditional		--	--
semi-sterile \| dominant			--
semi-sterile \| dominant \| female		--	--
semi-sterile \| female		--	--
semi-sterile \| female \| germline clone \| maternal effect		--	--
semi-sterile \| germline clone			--
semi-sterile \| progressive		--	--
semi-sterile \| recessive			--
semi-sterile \| recessive \| heat sensitive		--	--
semi-sterile \| somatic clone - tissue specific		--

Spanning Tree (Parents/Children)

  phenotypic class
   |__phenotype
       |__semi-sterile  2114 rec.
           |__female semi-sterile 1516 rec.
           |__male semi-sterile 499 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

Secondary IDs

External Crossreferences & Linkouts