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        Genome-Wide Mapping of Meiotic DNA Double-Strand Breaks in Saccharomyces cerevisiae

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        DNA double-strand breaks (DSBs) initiate meiotic recombination in eukaryotes. We describe two strategies that use microarrays to determine the genome-wide distribution of meiotic DSBs in the yeast Saccharomyces cerevisiae . The first is a chromatin immunoprecipitation (ChIP) approach that targets the Spo11 protein, which remains covalently attached to DSB ends in certain mutant backgrounds. The second approach involves BND cellulose enrichment of the single-strand DNA (ssDNA) recombination intermediate formed by end-resection at DSB sites following Spo11 removal.
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