Noisy silence: non-coding RNA and heterochromatin formation at repetitive elements
A significant fraction of eukaryotic genomes comprises repetitive sequences, including rRNA genes, centromeres, telomeres, and retrotransposons. Repetitive elements are hotspots for recombination and represent a serious challenge for genome integrity. Maintaining these repeated elements in a compact...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2014
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| In: |
Epigenetics
Year: 2013, Volume: 9, Issue: 1, Pages: 53-61 |
| ISSN: | 1559-2308 |
| DOI: | 10.4161/epi.26485 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.4161/epi.26485
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| Author Notes: | Holger Bierhoff, Anna Postepska-Igielska & Ingrid Grummt |
| Summary: | A significant fraction of eukaryotic genomes comprises repetitive sequences, including rRNA genes, centromeres, telomeres, and retrotransposons. Repetitive elements are hotspots for recombination and represent a serious challenge for genome integrity. Maintaining these repeated elements in a compact heterochromatic structure suppresses recombination and unwanted mutagenic transposition, and is therefore indispensable for genomic stability. Paradoxically, repetitive elements are not transcriptionally inert, but produce RNA that has important functions in regulating and reinforcing the heterochromatic state. Here, we review the role of non-coding RNA (ncRNA) in recruiting chromatin-modifying enzymes to repetitive genomic loci to establish a repressive chromatin structure that safeguards chromosome integrity and genome stability. |
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| Item Description: | Published online: 11 October 2013 Gesehen am 11.12.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1559-2308 |
| DOI: | 10.4161/epi.26485 |