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A new role for histone demethylases in the maintenance of plant genome integrity

  • Javier Antunez-Sanchez
  • , Matthew Naish
  • , Juan Sebastian Ramirez-Prado
  • , Sho Ohno
  • , Ying Huang
  • , Alexander Dawson
  • , Korawit Opassathian
  • , Deborah Manza-Mianza
  • , Federico Ariel
  • , Cecile Raynaud
  • , Anjar Wibowo
  • , Josquin Daron
  • , Minako Ueda
  • , David Latrasse
  • , R. Keith Slotkin
  • , Detlef Weigel
  • , Moussa Benhamed
  • , Jose Gutierrez-Marcos
  • Warwick University
  • University of Cambridge
  • Université d'Evry-Val d'Essone
  • University of Leuven
  • Center for Plant Systems Biology
  • Graduate School of Agriculture
  • Dept. 3 (Genetics)
  • Universitas Airlangga
  • The Ohio State University
  • University of Montpellier
  • Nagoya University
  • Donald Danforth Plant Science Center
  • University of Missouri
  • Universite Paris Cite

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

Histone modifications deposited by the Polycomb repressive complex 2 (PRC2) play a critical role in the control of growth, development, and adaptation to environmental fluctuations of most multicellular eukaryotes. The catalytic activity of PRC2 is counteracted by Jumonji-type (JMJ) histone demethylases, which shapes the genomic distribution of H3K27me3. Here, we show that two JMJ histone demethylases in Arabidopsis, EARLY FLOWERING 6 (ELF6) and RELATIVE OF EARLY FLOWERING 6 (REF6), play distinct roles in H3K27me3 and H3K27me1 homeostasis. We show that failure to reset these chromatin marks during sexual reproduction results in the transgenerational inheritance of histone marks, which cause a loss of DNA methylation at heterochromatic loci and transposon activation. Thus, Jumonji-type histone demethylases play a dual role in plants by helping to maintain transcriptional states through development and safeguard genome integrity during sexual reproduction.

Original languageEnglish
Article numbere58533
Pages (from-to)1-32
Number of pages32
JournaleLife
Volume9
DOIs
Publication statusPublished - Oct 2020
Externally publishedYes

Keywords

  • Arabidopsis
  • Chromatin
  • DNA methylation
  • Epimutation
  • Transposon

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