Seasonal Stability and Dynamics of DNA Methylation in Plants in a Natural Environment
AbstractDNA 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 Arabidopsis halleri. 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 positively associated with seasonal stability of RNA expression of the genes. These results suggest the existence of two distinct aspects of DNA methylation in natural environments: sources of epigenetic variation and epigenetic marks for stable gene expression. View Full-Text
- Supplementary File 1:
PDF-Document (PDF, 419 KB)
Share & Cite This Article
Ito, T.; Nishio, H.; Tarutani, Y.; Emura, N.; Honjo, M.N.; Toyoda, A.; Fujiyama, A.; Kakutani, T.; Kudoh, H. Seasonal Stability and Dynamics of DNA Methylation in Plants in a Natural Environment. Genes 2019, 10, 544.
Ito T, Nishio H, Tarutani Y, Emura N, Honjo MN, Toyoda A, Fujiyama A, Kakutani T, Kudoh H. Seasonal Stability and Dynamics of DNA Methylation in Plants in a Natural Environment. Genes. 2019; 10(7):544.Chicago/Turabian Style
Ito, Tasuku; Nishio, Haruki; Tarutani, Yoshiaki; Emura, Naoko; Honjo, Mie N.; Toyoda, Atsushi; Fujiyama, Asao; Kakutani, Tetsuji; Kudoh, Hiroshi. 2019. "Seasonal Stability and Dynamics of DNA Methylation in Plants in a Natural Environment." Genes 10, no. 7: 544.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.