Arabidopsis MSH1 mutation alters the epigenome and produces heritable changes in plant growth

Kamaldeep S. Virdi, John D. Laurie, Ying Zhi Xu, Jiantao Yu, Mon Ray Shao, Robersy Sanchez, Hardik Kundariya, Dong Wang, Jean-Jack M Riethoven, Yashitola Wamboldt, Maria P. Arrieta-Montiel, Vikas Shedge, Sally Mackenzie

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Plant phenotypes respond to environmental change, an adaptive capacity that is at least partly transgenerational. However, epigenetic components of this interplay are difficult to measure. Depletion of the nuclear-encoded protein MSH1 causes dramatic and heritable changes in plant development, and here we show that crossing these altered plants with isogenic wild type produces epi-lines with heritable, enhanced growth vigour. Pericentromeric DNA hypermethylation occurs in a subset of msh1 mutants, indicative of heightened transposon repression, while enhanced growth epi-lines show large chromosomal segments of differential CG methylation, reflecting genome-wide reprogramming. When seedlings are treated with 5-azacytidine, root growth of epi-lines is restored to wild-type levels, implicating hypermethylation in enhanced growth. Grafts of wild-type floral stems to mutant rosettes produce progeny with enhanced growth and altered CG methylation strikingly similar to epi-lines, indicating a mobile signal when MSH1 is downregulated, and confirming the programmed nature of methylome and phenotype changes.

Original languageEnglish (US)
Article number6386
JournalNature communications
Volume6
DOIs
StatePublished - Feb 27 2015

Fingerprint

mutations
Arabidopsis
Mutation
Growth
phenotype
methylation
Methylation
Phenotype
Azacitidine
progeny
Plant Development
genome
Nuclear Proteins
Seedlings
stems
Epigenomics
Grafts
set theory
depletion
Down-Regulation

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Virdi, K. S., Laurie, J. D., Xu, Y. Z., Yu, J., Shao, M. R., Sanchez, R., ... Mackenzie, S. (2015). Arabidopsis MSH1 mutation alters the epigenome and produces heritable changes in plant growth. Nature communications, 6, [6386]. https://doi.org/10.1038/ncomms7386

Arabidopsis MSH1 mutation alters the epigenome and produces heritable changes in plant growth. / Virdi, Kamaldeep S.; Laurie, John D.; Xu, Ying Zhi; Yu, Jiantao; Shao, Mon Ray; Sanchez, Robersy; Kundariya, Hardik; Wang, Dong; Riethoven, Jean-Jack M; Wamboldt, Yashitola; Arrieta-Montiel, Maria P.; Shedge, Vikas; Mackenzie, Sally.

In: Nature communications, Vol. 6, 6386, 27.02.2015.

Research output: Contribution to journalArticle

Virdi, KS, Laurie, JD, Xu, YZ, Yu, J, Shao, MR, Sanchez, R, Kundariya, H, Wang, D, Riethoven, J-JM, Wamboldt, Y, Arrieta-Montiel, MP, Shedge, V & Mackenzie, S 2015, 'Arabidopsis MSH1 mutation alters the epigenome and produces heritable changes in plant growth', Nature communications, vol. 6, 6386. https://doi.org/10.1038/ncomms7386
Virdi, Kamaldeep S. ; Laurie, John D. ; Xu, Ying Zhi ; Yu, Jiantao ; Shao, Mon Ray ; Sanchez, Robersy ; Kundariya, Hardik ; Wang, Dong ; Riethoven, Jean-Jack M ; Wamboldt, Yashitola ; Arrieta-Montiel, Maria P. ; Shedge, Vikas ; Mackenzie, Sally. / Arabidopsis MSH1 mutation alters the epigenome and produces heritable changes in plant growth. In: Nature communications. 2015 ; Vol. 6.
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