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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1111/nph.16559
|2 doi
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|a pubmed24n1026.xml
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|a (DE-627)NLM307882527
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|a (NLM)32201955
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Chen, Naichong
|e verfasserin
|4 aut
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| 245 |
1 |
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|a HSI2/VAL1 and HSL1/VAL2 function redundantly to repress DOG1 expression in Arabidopsis seeds and seedlings
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|c 2020
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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 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 The Authors. New Phytologist © 2020 New Phytologist Trust.
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|a DELAY OF GERMINATION1 (DOG1) is a primary regulator of seed dormancy. Accumulation of DOG1 in seeds leads to deep dormancy and delayed germination in Arabidopsis. B3 domain-containing transcriptional repressors HSI2/VAL1 and HSL1/VAL2 silence seed dormancy and enable the subsequent germination and seedling growth. However, the roles of HSI2 and HSL1 in regulation of DOG1 expression and seed dormancy remain elusive. Seed dormancy was analysed by measurement of maximum germination percentage of freshly harvested Arabidopsis seeds. In vivo protein-protein interaction analysis, ChIP-qPCR and EMSA were performed and suggested that HSI2 and HSL1 can form dimers to directly regulate DOG1. HSI2 and HSL1 dimers interact with RY elements at DOG1 promoter. Both B3 and PHD-like domains are required for enrichment of HSI2 and HSL1 at the DOG1 promoter. HSI2 and HSL1 recruit components of polycomb-group proteins, including CURLY LEAF (CLF) and LIKE HETERCHROMATIN PROTEIN 1 (LHP1), for consequent deposition of H3K27me3 marks, leading to repression of DOG1 expression. Our findings suggest that HSI2- and HSL1-dependent histone methylation plays critical roles in regulation of seed dormancy during seed germination and early seedling growth
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a dormancy
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|a germination
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|a histone methylation
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|a polycomb repressive complex 2
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4 |
|a transcriptional repression
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a DOG1 protein, Arabidopsis
|2 NLM
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| 650 |
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|a HSI2 protein, Arabidopsis
|2 NLM
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| 650 |
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|a HSL1 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Repressor Proteins
|2 NLM
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| 700 |
1 |
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|a Wang, Hui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Abdelmageed, Haggag
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Veerappan, Vijaykumar
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tadege, Million
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Allen, Randy D
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 227(2020), 3 vom: 15. Aug., Seite 840-856
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:227
|g year:2020
|g number:3
|g day:15
|g month:08
|g pages:840-856
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|u http://dx.doi.org/10.1111/nph.16559
|3 Volltext
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|d 227
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