Epigenetics and plant reproduction: Multiple steps for responsibly handling succession

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.

Automated summary

Despite differences in epigenetic reprogramming mechanisms between plants and mammals, both are able to faithfully inherit epigenetic information across mitotic cell division. Recent advances in genome-wide epigenetic analyses in plants have provided insight into unique epigenetic regulation processes distinct from those observed in mammals.