FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

siRNA-mediated heterochromatin formation

ID (Ontology)

GO:0141194 (Gene Ontology)

Definition

The formation of heterochromatin into a heterochromatin domain by a process mediated by a small interfering siRNA.

Comment

Links to External Ontologies

QuickGO data AmiGO data

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
Genes (FBgn)	GO_BIOLOGICAL_PROCESS

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	Genes
siRNA-mediated heterochromatin formation (all annotations which use CV term, excluding "NOT" statements)
involved_in \| siRNA-mediated heterochromatin formation

Spanning Tree (Parents/Children)

regulatory ncRNA-mediated gene silencing__
heterochromatin formation_________________|
                                          regulatory ncRNA-mediated heterochromatin formation
                                           |__siRNA-mediated heterochromatin formation  6 rec.
                                               |__gene silencing by siRNA-directed DNA methylation
                                               |   |__transposable element silencing by siRNA-mediated DNA methylation
                                               |__siRNA-mediated facultative heterochromatin formation
                                               |   |__regulation of siRNA-mediated facultative heterochromatin formation
                                               |__siRNA-mediated pericentric heterochromatin formation 2 rec.
                                               |__siRNA-mediated silent mating type cassette region heterochromatin formation
                                               |__transposable element silencing by siRNA-mediated heterochromatin formation

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	regulatory ncRNA-mediated heterochromatin formation
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts