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Title: Epigenetic silencing of a multifunctional plant stress regulator

Abstract

The central regulator of the ethylene (ET) signaling pathway, which controls a plethora of developmental programs and responses to environmental cues in plants, is ETHYLENE-INSENSITIVE2 (EIN2). Here we identify a chromatin-dependent regulatory mechanism at EIN2 requiring two genes: ETHYLENE-INSENSITIVE6 (EIN6), which is a H3K27me3 demethylase also known as RELATIVE OF EARLY FLOWERING6 (REF6), and EIN6 ENHANCER (EEN), the Arabidopsis homolog of the yeast INO80 chromatin remodeling complex subunit IES6 (INO EIGHTY SUBUNIT). Strikingly, EIN6 (REF6) and the INO80 complex redundantly control the level and the localization of the repressive histone modification H3K27me3 and the histone variant H2A.Z at the 5’ untranslated region (5’UTR) intron of EIN2. Concomitant loss of EIN6 (REF6) and the INO80 complex shifts the chromatin landscape at EIN2 to a repressive state causing a dramatic reduction of EIN2 expression. These results uncover a unique type of chromatin regulation which safeguards the expression of an essential multifunctional plant stress regulator.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [2]; ORCiD logo [2];  [2];  [2]; ORCiD logo [4];  [3];  [3];  [3]; ORCiD logo [3];  [3]; ORCiD logo [3];  [2]; ORCiD logo [2]; ORCiD logo [2];  [5]; ORCiD logo [1]
  1. Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, United States, Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, United States, Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, United States
  2. Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, United States
  3. Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, United States
  4. Department of Biology, University of Pennsylvania, Philadelphia, United States
  5. Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, United States, Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, United States
Publication Date:
Research Org.:
Salk Institute for Biological Studies, La Jolla, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Institutes of Health (NIH)
OSTI Identifier:
1560888
Alternate Identifier(s):
OSTI ID: 1560889; OSTI ID: 1609505
Grant/Contract Number:  
FG02-04ER15517
Resource Type:
Published Article
Journal Name:
eLife
Additional Journal Information:
Journal Name: eLife Journal Volume: 8; Journal ID: ISSN 2050-084X
Publisher:
eLife Sciences Publications, Ltd.
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; Life Sciences & Biomedicine - Other Topics

Citation Formats

Zander, Mark, Willige, Björn C., He, Yupeng, Nguyen, Thu A., Langford, Amber E., Nehring, Ramlah, Howell, Elizabeth, McGrath, Robert, Bartlett, Anna, Castanon, Rosa, Nery, Joseph R., Chen, Huaming, Zhang, Zhuzhu, Jupe, Florian, Stepanova, Anna, Schmitz, Robert J., Lewsey, Mathew G., Chory, Joanne, and Ecker, Joseph R. Epigenetic silencing of a multifunctional plant stress regulator. United States: N. p., 2019. Web. doi:10.7554/eLife.47835.
Zander, Mark, Willige, Björn C., He, Yupeng, Nguyen, Thu A., Langford, Amber E., Nehring, Ramlah, Howell, Elizabeth, McGrath, Robert, Bartlett, Anna, Castanon, Rosa, Nery, Joseph R., Chen, Huaming, Zhang, Zhuzhu, Jupe, Florian, Stepanova, Anna, Schmitz, Robert J., Lewsey, Mathew G., Chory, Joanne, & Ecker, Joseph R. Epigenetic silencing of a multifunctional plant stress regulator. United States. https://doi.org/10.7554/eLife.47835
Zander, Mark, Willige, Björn C., He, Yupeng, Nguyen, Thu A., Langford, Amber E., Nehring, Ramlah, Howell, Elizabeth, McGrath, Robert, Bartlett, Anna, Castanon, Rosa, Nery, Joseph R., Chen, Huaming, Zhang, Zhuzhu, Jupe, Florian, Stepanova, Anna, Schmitz, Robert J., Lewsey, Mathew G., Chory, Joanne, and Ecker, Joseph R. Fri . "Epigenetic silencing of a multifunctional plant stress regulator". United States. https://doi.org/10.7554/eLife.47835.
@article{osti_1560888,
title = {Epigenetic silencing of a multifunctional plant stress regulator},
author = {Zander, Mark and Willige, Björn C. and He, Yupeng and Nguyen, Thu A. and Langford, Amber E. and Nehring, Ramlah and Howell, Elizabeth and McGrath, Robert and Bartlett, Anna and Castanon, Rosa and Nery, Joseph R. and Chen, Huaming and Zhang, Zhuzhu and Jupe, Florian and Stepanova, Anna and Schmitz, Robert J. and Lewsey, Mathew G. and Chory, Joanne and Ecker, Joseph R.},
abstractNote = {The central regulator of the ethylene (ET) signaling pathway, which controls a plethora of developmental programs and responses to environmental cues in plants, is ETHYLENE-INSENSITIVE2 (EIN2). Here we identify a chromatin-dependent regulatory mechanism at EIN2 requiring two genes: ETHYLENE-INSENSITIVE6 (EIN6), which is a H3K27me3 demethylase also known as RELATIVE OF EARLY FLOWERING6 (REF6), and EIN6 ENHANCER (EEN), the Arabidopsis homolog of the yeast INO80 chromatin remodeling complex subunit IES6 (INO EIGHTY SUBUNIT). Strikingly, EIN6 (REF6) and the INO80 complex redundantly control the level and the localization of the repressive histone modification H3K27me3 and the histone variant H2A.Z at the 5’ untranslated region (5’UTR) intron of EIN2. Concomitant loss of EIN6 (REF6) and the INO80 complex shifts the chromatin landscape at EIN2 to a repressive state causing a dramatic reduction of EIN2 expression. These results uncover a unique type of chromatin regulation which safeguards the expression of an essential multifunctional plant stress regulator.},
doi = {10.7554/eLife.47835},
journal = {eLife},
number = ,
volume = 8,
place = {United States},
year = {2019},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.7554/eLife.47835

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