Abstract
During meiosis, homologous chromosomes (homologs) undergo recombinational interactions, resulting in the formation of crossovers (COs) or noncrossovers (NCOs). Both COs and NCOs are initiated by the same event: programmed double-strand DNA breaks (DSBs), which occur preferentially at hotspots throughout the genome. COs contribute to the genetic diversity of gametes and are needed to promote proper meiotic chromosome segregation. Accordingly, their formation is tightly controlled. In the mouse, the sites of preferred CO formation differ between male and female chromosomes, both on a regional level and on the level of individual hotspots. Sperm typing using (half-sided) allele-specific PCR has proven a powerful technique to characterize COs and all detectable NCOs at hotspots on male human and mouse chromosomes. In contrast, very little is known about the properties of hotspots in female meiosis. This chapter describes an adaptation of sperm typing to analyze recombinants in a hotspot, using DNA isolated from an ovary cell suspension enriched for oocytes.
An erratum to this chapter is available at http://dx.doi.org/10.1007/978-1-62703-191-2_21
An erratum to this chapter can be found at http://dx.doi.org/10.1007/978-1-62703-191-2_21
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Acknowledgements
We thank Liisa Kauppi and Francesca Cole for advice on allele-specific PCR. This work was supported by a Netherlands Organization for Scientific Research Rubicon Grant 825.07.006 (E.B.) and a National Institutes of Health Grant R01 HD53855 (S.K. and M.J.).
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de Boer, E., Jasin, M., Keeney, S. (2013). Analysis of Recombinants in Female Mouse Meiosis. In: Homer, H. (eds) Mammalian Oocyte Regulation. Methods in Molecular Biology, vol 957. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-191-2_2
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DOI: https://doi.org/10.1007/978-1-62703-191-2_2
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