Abstract
Abstract In classical genetics and plant breeding, plant phenotypes are explained by genotype, environment and their interactions. Currently, the epigenetic component is recognized as another element functioning together with genetics and environment to determine phenotypic traits. Understanding the mechanism of epigenetics, the sources of epigenetic variation and epigenome editing will aid in incorporating the epigenetic component into plant breeding systems. The property of transgenerational inheritance of epigenetic marks, such as DNA methylation, will allow breeders to capture the underlying epigenetic alterations associated with phenotypic changes. Stably inherited epigenetic features can be subjected to artificial selection, which makes it possible to use epigenetic variation to improve agronomic traits and plant adaptation to environmental stress for crop improvement.
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