Although flowering plants and mammals have distinct life cycles and developmental programs, epigenetic information in both plant and mammalian cells is faithfully inherited across mitotic cell division. In mammals, epigenetic reprograming is a prominent process that is re-established in the zygote and germ line during early development. By contrast, plants do not produce germ cells until later in development. This difference, along with the many examples of the transmission of stable epialleles in plants, suggests that epigenetic reprograming in plants and mammals occurs via distinct mechanisms. In this review, we highlight recent advances in genome-wide epigenetic analyses in plants. These analyses provide insight into dynamic epigenetic regulation in plants and reveal unique processes that maintain genome integrity during plant sexual reproduction.
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| http://dx.doi.org/10.1016/j.pbi.2021.102032 | DOI Listing |
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