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In this article there is a graph (figure 1) describing different levels of methylation in the maternal and paternal chromosomes after karyogamy. How can the researchers identify which chromosome originates from each parent?

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  • $\begingroup$ That article is a review, and cites two other reviews for this figure. The more recent one is freely available and looks fairly thorough, with more direct references to primary publications. $\endgroup$
    – Mike Serfas
    Commented Jan 14, 2021 at 0:23

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A straightforward way to identify which chromosome came from which parent would be to use sequences of known fragments of parental chromosomes or to use SNP arrays. I hope that I did not miss your question completely.

Regards,

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  • $\begingroup$ is that the common way? I learned this subject in a course where they also spoke of sequencing techinques including SNP arrays but they said that teaching how to recognize chromosome origin is out of scope so I assumed there is another way. $\endgroup$
    – Hachiloni
    Commented Aug 15, 2020 at 19:23

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