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Epigenome dynamics from seed to seedling

Nature Reviews Genetics volume 18, page 637 (2017)Cite this article

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In plants, DNA methylation is known to occur at cytosine residues in three sequence contexts: CG, CHG and CHH (where H represents A, C or T). CG methylation at gene bodies marks constitutively expressed loci, whereas non-CG methylation is predominantly restricted to genomic regions under active silencing — for example, by RNA-directed DNA methylation (RdDM) — such as TEs and other repetitive DNA.

Kawakatsu et al., Bouyer et al. and Narsai et al. carried out whole-genome bisulfite sequencing and then compared A. thaliana methylomes at different stages of development, from early to late embryonic stages of dry seeds to germinating seeds and including post-germinative seedlings.

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References

  1. Kawakatsu, T. et al. Dynamic DNA methylation reconfiguration during seed development and germination. Genome Biol. http://dx.doi.org/10.1186/s13059-017-1251-x (2017)

  2. Bouyer, D. et al. DNA methylation dynamics during early plant life. Genome Biol. http://dx.doi.org/10.1186/s13059-017-1313-0 (2017)

  3. Narsai, R. et al. Extensive transcriptomic and epigenomic remodeling occurs during Arabidopsis thaliana germination. Genome Biol. http://dx.doi.org/10.1186/s13059-017-1302-3 (2017)

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  1. Linda Koch
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Related links in Nature Research

Kawashima, T. & Berger, F. Epigenetic reprogramming in plant sexual reproduction. Nat. Rev. Genet. 15, 613–624 (2014)

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Koch, L. Epigenome dynamics from seed to seedling. Nat Rev Genet 18, 637 (2017). https://doi.org/10.1038/nrg.2017.78

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