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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2018.03.011
|2 doi
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|a pubmed24n0940.xml
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|a (DE-627)NLM282056998
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|a (NLM)29549759
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|a (PII)S0981-9428(18)30126-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Movahedi, Ali
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Functional analyses of PtRDM1 gene overexpression in poplars and evaluation of its effect on DNA methylation and response to salt stress
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|c 2018
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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
|b cr
|2 rdacarrier
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|a Date Completed 26.07.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2018 Elsevier Masson SAS. All rights reserved.
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|a Epigenetic modification by DNA methylation is necessary for all cellular processes, including genetic expression events, DNA repair, genomic imprinting and regulation of tissue development. It occurs almost exclusively at the C5 position of symmetric CpG and asymmetric CpHpG and CpHpH sites in genomic DNA. The RNA-directed DNA methylation (RDM1) gene is crucial for heterochromatin and DNA methylation. We overexpressed PtRDM1 gene from Populus trichocarpa to amplify transcripts of orthologous RDM1 in 'Nanlin895' (P. deltoides × P. euramericana 'Nanlin895'). This overexpression resulted in increasing RDM1 transcript levels: by ∼150% at 0 mM NaCl treatment and by ∼300% at 60 mM NaCl treatment compared to WT (control) poplars. Genomic cytosine methylation was monitored within 5.8S rDNA and histone H3 loci by bisulfite sequencing. In total, transgenic poplars revealed more DNA methylation than WT plants. In our results, roots revealed more methylated CG contexts than stems and leaves whereas, histone H3 presented more DNA methylation than 5.8S rDNA in both WT and transgenic poplars. The NaCl stresses enhanced more DNA methylation in transgenic poplars than WT plants through histone H3 and 5.8 rDNA loci. Also, the overexpression of PtRDM1 resulted in hyper-methylation, which affected plant phenotype. Transgenic poplars revealed significantly more regeneration of roots than WT poplars via NaCl treatments. Our results proved that RDM1 protein enhanced the DNA methylation by chromatin remodeling (e.g. histone H3) more than repetitive DNA sequences (e.g. 5.8S rDNA)
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|a Journal Article
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|a DNA methylation
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|a Poplar
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|a PtRDM1
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|a PtROS1
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|a Salt stress
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|a DNA, Plant
|2 NLM
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|a Plant Proteins
|2 NLM
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|a Sodium Chloride
|2 NLM
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| 650 |
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|a 451W47IQ8X
|2 NLM
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| 650 |
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|a DNA Modification Methylases
|2 NLM
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| 650 |
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|a EC 2.1.1.-
|2 NLM
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| 700 |
1 |
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|a Zhang, Jiaxin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Weibo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mohammadi, Kourosh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Almasi Zadeh Yaghuti, Amir
|e verfasserin
|4 aut
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| 700 |
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|a Wei, Hui
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Xiaolong
|e verfasserin
|4 aut
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| 700 |
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|a Yin, Tongming
|e verfasserin
|4 aut
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| 700 |
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|a Zhuge, Qiang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 127(2018) vom: 22. Juni, Seite 64-73
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:127
|g year:2018
|g day:22
|g month:06
|g pages:64-73
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| 856 |
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|u http://dx.doi.org/10.1016/j.plaphy.2018.03.011
|3 Volltext
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|d 127
|j 2018
|b 22
|c 06
|h 64-73
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