Elevated rates of sister chromatid exchange at chromosome ends.

Chromosome ends are known hotspots of meiotic recombination and double-strand breaks. We monitored mitotic sister chromatid exchange (SCE) in telomeres and subtelomeres and found that 17% of all SCE occurs in the terminal 0.1% of the chromosome. Telomeres and subtelomeres are significantly enriched...

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Bibliographic Details
Main Authors: M Katharine Rudd, Cynthia Friedman, Sean S Parghi, Elena V Linardopoulou, Li Hsu, Barbara J Trask
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2007-02-01
Series:PLoS Genetics
Online Access:https://journals.plos.org/plosgenetics/article/file?id=10.1371/journal.pgen.0030032&type=printable
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Summary:Chromosome ends are known hotspots of meiotic recombination and double-strand breaks. We monitored mitotic sister chromatid exchange (SCE) in telomeres and subtelomeres and found that 17% of all SCE occurs in the terminal 0.1% of the chromosome. Telomeres and subtelomeres are significantly enriched for SCEs, exhibiting rates of SCE per basepair that are at least 1,600 and 160 times greater, respectively, than elsewhere in the genome.
ISSN:1553-7390
1553-7404