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240219s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108425
|2 doi
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|a pubmed24n1490.xml
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|a (DE-627)NLM368587932
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|a (NLM)38368728
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|a (PII)S0981-9428(24)00093-7
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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 |
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|a Chen, Xin
|e verfasserin
|4 aut
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|a Mapping and identification of a reverse mutation of Rht2 that enhances plant height and thousand grain weight in an elite wheat mutant induced by spaceflight
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|c 2024
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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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|2 rdacarrier
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|a Date Completed 18.03.2024
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|a Date Revised 02.08.2024
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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 As climate change continues to negatively impact our farmlands, abiotic factors like salinity and drought stress increasingly threaten global food security. The development of elite germplasms with resistance to multiple abiotic stresses is essential for breeding climate-resilient wheat cultivars. In this study, we determined that the previously reported salt-tolerant st1 mutant, obtained via spaceflight mutagenesis, may also resist to drought stress at the seedling stage. Moreover, our field trial revealed that yield-related traits including plant height, 1000-grain weight, and spike number per plant were significantly increased in st1 compared to the wild type. An F2 population of 334 individuals derived from a cross between the wild type and st1 displayed a bimodal distribution indicating that st1 plant height is controlled by a single major gene. Our Bulked Segregant Analysis and exome capture sequencing indicate that this gene is located on chromosome 4D. Further genetic linkage and gene sequence analysis suggests that a reverse mutation of Rht2 is putatively responsible for plant height variation in st1. Our genotypic and phenotypic analysis of the F2 population and F3 lines indicate that this reverse mutation significantly increases plant height and thousand grain weight but slightly decreases spike number per plant. Together, these results supply helpful information for the utilization of Rht2 in wheat breeding and provide an important material for breeding environmentally resilient, high-yield wheat varieties
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|a Journal Article
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|a Reverse mutation
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|a Rht2
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|a Space mutation
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|a Wheat
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|a Yield traits
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|a Xiong, Hongchun
|e verfasserin
|4 aut
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|a Guo, Huijun
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Shihua
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Linshu
|e verfasserin
|4 aut
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|a Xie, Yongdun
|e verfasserin
|4 aut
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| 700 |
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|a Gu, Jiayu
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Shirong
|e verfasserin
|4 aut
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|a Ding, Yuping
|e verfasserin
|4 aut
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|a Li, Huiyuan
|e verfasserin
|4 aut
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|a Wang, Qingguo
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Luxiang
|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 207(2024) vom: 01. Feb., Seite 108425
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:207
|g year:2024
|g day:01
|g month:02
|g pages:108425
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108425
|3 Volltext
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