FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term regulatory ncRNA-mediated heterochromatin formation ID (Ontology) GO:0031048 (Gene Ontology)
Definition A heterochromatin formation-based gene silencing process mediated by a regulatory non-coding RNA molecule that occur before the beginning of trancription.[ PubMed:19239886 PubMed:21420348 ]
Also Known As "ncRNA-mediated heterochromatin formation" ; "RNA interference-like chromatin silencing" ; "RNA-dependent heterochromatin formation" (for all, see Synonyms field below)
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Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Genes (FBgn)  GO_BIOLOGICAL_PROCESS       5
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Genes
 regulatory ncRNA-mediated heterochromatin formation (all annotations which use CV term, excluding "NOT" statements)       5
     involved_in | regulatory ncRNA-mediated heterochromatin formation       5
Spanning Tree (Parents/Children)
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negative regulation of gene expression
 |__regulatory ncRNA-mediated gene silencing________
cellular component assembly                         |
 |__heterochromatin formation_______________________|
negative regulation of gene expression, epigenetic  |
 |__heterochromatin formation_______________________|
heterochromatin organization                        |
 |__heterochromatin formation_______________________|
                                                    regulatory ncRNA-mediated heterochromatin formation  32 rec.
                                                     |__piRNA-mediated heterochromatin formation 21 rec.
                                                     |   |__gene silencing by piRNA-directed DNA methylation(+)
                                                     |   |__transposable element silencing by piRNA-mediated heterochromatin formation 21 rec.
                                                     |__regulation of regulatory ncRNA-mediated heterochromatin formation 1 rec.
                                                     |   |__negative regulation of regulatory ncRNA-mediated heterochromatin formation 1 rec.
                                                     |   |__regulation of siRNA-mediated facultative heterochromatin formation
                                                     |__siRNA-mediated heterochromatin formation 6 rec.
                                                         |__gene silencing by siRNA-directed DNA methylation(+)
                                                         |__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
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Is a regulatory ncRNA-mediated gene silencing
heterochromatin formation
Part of
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Synonyms
  • "chromatin silencing by small RNA" RELATED
    "heterochromatin assembly by small RNA" NARROW
    "heterochromatin assembly involved in chromatin silencing by small RNA" RELATED
    "heterochromatin formation involved in chromatin silencing by small RNA" RELATED
    "ncRNA-mediated heterochromatin formation" EXACT
    "pre-transcriptional gene silencing by RNA" BROAD
    "pre-transcriptional gene silencing by small non-coding RNA" NARROW
    "RNA interference-like chromatin silencing" EXACT
    "RNA-dependent heterochromatin formation" EXACT
    "RNA-mediated chromatin silencing" EXACT
    "RNA-mediated heterochromatin formation" RELATED
    "RNA-mediated TGS" BROAD
    "RNA-mediated transcriptional silencing" EXACT
    "RNAi-directed chromatin silencing" EXACT
    "RNAi-like chromatin silencing" EXACT
    "small ncRNA-mediated heterochromatin formation" NARROW
    "small non-coding RNA-dependent heterochromatin formation" NARROW
    "small RNA-mediated heterochromatic silencing" NARROW
    "small RNA-mediated heterochromatin formation" NARROW
Secondary IDs
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