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Review article - Peer-reviewed, 2022

Genomic imprinting regulates establishment and release of seed dormancy

Sato, Hikaru; Koehler, Claudia

Abstract

Seed dormancy enables plant seeds to time germination until environmental conditions become favorable for seedling sur-vival. This trait has high adaptive value and is of great agri-cultural relevance. The endosperm is a reproductive tissue formed after fertilization that in addition to support embryo growth has major roles in establishing seed dormancy. Many genes adopt parent-of-origin specific expression patterns in the endosperm, a phenomenon that has been termed genomic imprinting. Imprinted genes are targeted by epigenetic mech-anisms acting before and after fertilization. Recent studies revealed that imprinted genes are involved in establishing seed dormancy, highlighting a new mechanism of parental control over this adaptive trait. Here, we review the regulatory mech-anisms establishing genomic imprinting and their effect on seed dormancy.

Keywords

Endosperm; Seed; Dormancy; Imprinting; Histone modifications; DNA methylation

Published in

Current Opinion in Plant Biology
2022, volume: 69, article number: 102264
Publisher: CURRENT BIOLOGY LTD

Authors' information

Swedish University of Agricultural Sciences, Department of Plant Biology
Swedish University of Agricultural Sciences, Department of Plant Biology
Koehler, Claudia (Köhler, Claudia)
Max Planck Society

UKÄ Subject classification

Genetics and Breeding

Publication Identifiers

DOI: https://doi.org/10.1016/j.pbi.2022.102264

URI (permanent link to this page)

https://res.slu.se/id/publ/119077