Seasonal Stability and Dynamics of DNA Methylation in Plants in a Natural Environment.

ABSTRACT: : DNA methylation has been considered a stable epigenetic mark but may respond to fluctuating environments. However, it is unclear how they behave in natural environments. Here, we analyzed seasonal patterns of genome-wide DNA methylation in a single clone from a natural population of the perennial Arabidopsishalleri. The genome-wide pattern of DNA methylation was primarily stable, and most of the repetitive regions were methylated across the year. Although the proportion was small, we detected seasonally methylated cytosines (SeMCs) in the genome. SeMCs in the CHH context were detected predominantly at repetitive sequences in intergenic regions. In contrast, gene-body CG methylation (gbM) itself was generally stable across seasons, but the levels of gbM were positivel

SUBMITTER: Ito T 

PROVIDER: S-EPMC6679105 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature