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Genome-Wide Detection of Meiotic DNA Double-Strand Break Hotspots Using Single-Stranded DNA

  • Hannah G. Blitzblau
  • Andreas HochwagenEmail author
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 745)

Abstract

The controlled fragmentation of chromosomes by DNA double-strand breaks (DSBs) initiates meiotic recombination, which is essential for meiotic chromosome segregation in most eukaryotes. This chapter describes a straightforward microarray-based approach to measure the genome-wide distribution of meiotic DSBs by detecting the single-stranded DNA (ssDNA) that transiently accumulates at DSB sites during recombination. The protocol outlined here has been optimized to detect meiotic DSBs in Saccharomyces cerevisiae. However, because ssDNA is a universal intermediate of homologous recombination, this method can ostensibly be adapted to discover and analyze programmed or damage-induced DSB hotspots in other organisms whose genome sequence is available.

Key words

ssDNA meiosis double-strand breaks hotspots microarray 

Notes

Acknowledgments

We would also like to thank Gerben Vader and Milan de Vries for technical discussions and critical reading of this protocol.

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Whitehead Institute for Biomedical ResearchCambridgeUSA

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