FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

photoperiod response variant

ID (Ontology)

FBcv:0000422 (FlyBase CV)

Definition

Phenotype that is any abnormality in entrainment of circadian clock by photoperiod (GO:0043153), which is defined as: 'The synchronization of a circadian rhythm to photoperiod, the intermittent cycle of light (day) and dark (night).'

Comment

Links to External Ontologies

Annotations

Records annotated with this term OR any of its CHILD TERMS

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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
photoperiod response variant (all annotations which use CV term, excluding "NOT" statements)
photoperiod response variant \| adult stage
photoperiod response variant \| recessive		--

Spanning Tree (Parents/Children)

  phenotype
   |__abnormal behavior
       |__photoperiod response variant  24 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	abnormal behavior
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts