Analysis of DNA Methylation Profiles in Preimplantation Embryos Using Bisulfite Mutagenesis

For developmental competence of mammalian embryos, dynamic epigenetic changes to both the maternally and paternally derived contributions to the genome of the zygote should be brought about in the early cleavage stages. DNA methylation is a typical epigenetic mark modified during pre-implantation development. Here, we describe how to analyze DNA methylation profiles in early-stage embryos.