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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17018
|2 doi
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|a pubmed24n1055.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Liu, Shujing
|e verfasserin
|4 aut
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| 245 |
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|a Role of H1 and DNA methylation in selective regulation of transposable elements during heat stress
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 14.05.2021
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|a Date Revised 31.05.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 Swedish University of Agricultural Sciences. New Phytologist © 2020 New Phytologist Foundation.
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|a Heat-stressed Arabidopsis plants release heterochromatin-associated transposable element (TE) silencing, yet it is not accompanied by major reductions of epigenetic repressive modifications. In this study, we explored the functional role of histone H1 in repressing heterochromatic TEs in response to heat stress. We generated and analyzed RNA and bisulfite-sequencing data of wild-type and h1 mutant seedlings before and after heat stress. Loss of H1 caused activation of pericentromeric Gypsy elements upon heat treatment, despite these elements remaining highly methylated. By contrast, nonpericentromeric Copia elements became activated concomitantly with loss of DNA methylation. The same Copia elements became activated in heat-treated chromomethylase 2 (cmt2) mutants, indicating that H1 represses Copia elements through maintaining DNA methylation under heat. We discovered that H1 is required for TE repression in response to heat stress, but its functional role differs depending on TE location. Strikingly, H1-deficient plants treated with the DNA methyltransferase inhibitor zebularine were highly tolerant to heat stress, suggesting that both H1 and DNA methylation redundantly suppress the plant response to heat stress
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis thaliana
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|a CMT2
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|a DNA methylation
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|a H1
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|a heat stress
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|a transposable element
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|a Arabidopsis Proteins
|2 NLM
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|a DNA Transposable Elements
|2 NLM
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| 650 |
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|a Histones
|2 NLM
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| 700 |
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|a de Jonge, Jennifer
|e verfasserin
|4 aut
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|a Trejo-Arellano, Minerva S
|e verfasserin
|4 aut
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| 700 |
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|a Santos-González, Juan
|e verfasserin
|4 aut
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| 700 |
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|a Köhler, Claudia
|e verfasserin
|4 aut
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| 700 |
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|a Hennig, Lars
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 229(2021), 4 vom: 22. Feb., Seite 2238-2250
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|x 1469-8137
|7 nnns
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|g volume:229
|g year:2021
|g number:4
|g day:22
|g month:02
|g pages:2238-2250
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|u http://dx.doi.org/10.1111/nph.17018
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