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240331s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108541
|2 doi
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|a pubmed24n1433.xml
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|a (DE-627)NLM37041795X
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|a (NLM)38552264
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|a (PII)S0981-9428(24)00209-2
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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 Zhang, Litian
|e verfasserin
|4 aut
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| 245 |
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|a A wheat heat shock transcription factor gene, TaHsf-7A, regulates seed dormancy and germination
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| 264 |
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|c 2024
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| 336 |
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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 09.05.2024
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|a Date Revised 07.06.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Masson SAS. All rights reserved.
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|a Heat shock transcription factors (Hsfs) play multifaceted roles in plant growth, development, and responses to environmental factors. However, their involvement in seed dormancy and germination processes has remained elusive. In this study, we identified a wheat class B Hsf gene, TaHsf-7A, with higher expression in strong-dormancy varieties compared to weak-dormancy varieties during seed imbibition. Specifically, TaHsf-7A expression increased during seed dormancy establishment and subsequently declined during dormancy release. Through the identification of a 1-bp insertion (ins)/deletion (del) variation in the coding region of TaHsf-7A among wheat varieties with different dormancy levels, we developed a CAPS marker, Hsf-7A-1319, resulting in two allelic variations: Hsf-7A-1319-ins and Hsf-7A-1319-del. Notably, the allele Hsf-7A-1319-ins correlated with a reduced seed germination rate and elevated dormancy levels, while Hsf-7A-1319-del exhibited the opposite trend across 175 wheat varieties. The association of TaHsf-7A allelic status with seed dormancy and germination levels was confirmed in various genetically modified species, including Arabidopsis, rice, and wheat. Results from the dual luciferase assay demonstrated notable variations in transcriptional activity among transformants harboring distinct TaHsf-7A alleles. Furthermore, the levels of abscisic acid (ABA) and gibberellin (GA), along with the expression levels of ABA and GA biosynthesis genes, showed significant differences between transgenic rice lines carrying different alleles of TaHsf-7A. These findings represent a significant step towards a comprehensive understanding of TaHsf-7A's involvement in the dormancy and germination processes of wheat seeds
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|a Journal Article
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|a Abscisic acid
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|a Gibberellin
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|a Heat shock transcription factor
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| 650 |
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|a Pre-harvest sprouting
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| 650 |
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4 |
|a Wheat
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| 650 |
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|a Heat Shock Transcription Factors
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Li, Ting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Ling
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cao, Kun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Shengnan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cao, Jiajia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Jie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Chuanxi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chang, Cheng
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Haiping
|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 210(2024) vom: 07. Mai, Seite 108541
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:210
|g year:2024
|g day:07
|g month:05
|g pages:108541
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| 856 |
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108541
|3 Volltext
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