- Department of Plant Biology, Swedish University of Agricultural Sciences
Batista, Rita A.; Kohler, Claudia
Genomic imprinting is an epigenetic phenomenon leading to parentally biased gene expression. Throughout the years, extensive efforts have been made to characterize the epigenetic marks underlying imprinting in animals and plants. As a result, DNA methylation asymmetries between parental genomes emerged as the primary factor controlling the imprinting status of many genes. Nevertheless, the data accumulated so far suggest that this process cannot solely explain the imprinting of all genes. In this review, we revisit the current models explaining imprinting regulation in plants, and discuss novel regulatory mechanisms that could function independently of parental DNA methylation asymmetries in the establishment of imprinting.
DNA methylation; genomic imprinting; Polycomb group proteins; plants
Genes and Development
2020, Volume: 34, number: 1-2, pages: 24-36
Publisher: COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT