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Subtle-seq reveals frequent ageing-associated chromosome fragmentation on nucleosome core DNA
Telomere healing seals the broken ends of DNA double-strand breaks by adding de novo telomeres. In the ciliate Paramecium, telomere healing results in chromosome fragmentation, which ultimately leads to clonal ageing. Despite its importance, where and how chromosomes fragment and undergo telomere healing, and to what extent sequence preferences exist, remain poorly understood. To investigate chromosome fragmentation, we enriched for telomere-containing sequences from the complex, highly...
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