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. 2021 May 6;11(5):1325. doi: 10.3390/ani11051325

Figure 4.

Figure 4

Overview of DNA methylation results of single CpGs for the selected genes. DNA methylation (DNMT1, DNMT3A, DNMT3B), embryo-maternal recognition (ESR1, CYP19A1, PTGES2), and growth and development (NANOG, SOX2) of the equine embryo. Blue box, unmethylated CpG; red box, methylated CpG; gray box, unclear methylation state. One row refers to one embryo and the number of columns refers to the number of CpGs sequenced in the CG-rich region (methprimer CpG island finder) upstream of the gene (Table 2).