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Combinations of maternal-specific repressive epigenetic marks in the endosperm control seed dormancy

Sato, Hikaru and Santos-González, Juan and Köhler, Claudia (2021). Combinations of maternal-specific repressive epigenetic marks in the endosperm control seed dormancy. eLife. 10 , e64593
[Research article]

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Abstract

Polycomb Repressive Complex 2 (PRC2)-mediated trimethylation of histone H3 on lysine 27 (H3K27me3) and methylation of histone 3 on lysine 9 (H3K9me) are two repressive epigenetic modifications that are typically localized in distinct regions of the genome. For reasons unknown, however, they co-occur in some organisms and special tissue types. In this study, we show that maternal alleles marked by H3K27me3 in the Arabidopsis endosperm were targeted by the H3K27me3 demethylase REF6 and became activated during germination. In contrast, maternal alleles marked by H3K27me3, H3K9me2, and CHG methylation (CHGm) are likely to be protected from REF6 targeting and remained silenced. Our study unveils that combinations of different repressive epigenetic modifications time a key adaptive trait by modulating access of REF6.

Authors/Creators:Sato, Hikaru and Santos-González, Juan and Köhler, Claudia
Title:Combinations of maternal-specific repressive epigenetic marks in the endosperm control seed dormancy
Series Name/Journal:eLife
Year of publishing :2021
Volume:10
Article number:e64593
Number of Pages:25
Publisher:ELIFE SCIENCES PUBLICATIONS LTD
ISSN:2050-084X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Genetics (medical genetics to be 30107 and agricultural genetics to be 40402)
URN:NBN:urn:nbn:se:slu:epsilon-p-113600
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113600
Additional ID:
Type of IDID
DOI10.7554/eLife.64593
Web of Science (WoS)000692022000001
ID Code:25453
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Plant Biology and Forest Genetics (until 131231)
Deposited By: SLUpub Connector
Deposited On:20 Sep 2021 08:51
Metadata Last Modified:20 Sep 2021 09:01

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