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|a 10.1093/jxb/erae391
|2 doi
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|a pubmed24n1544.xml
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|a (PII)erae391
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|a eng
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|a Li, Chao
|e verfasserin
|4 aut
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|a Genome-wide association study of image-based trait reveals the genetic architecture of dark-induced leaf senescence in rice
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 21.09.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprintsoup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.
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|a Darkness is often used as an effective measure to induce leaf senescence. Although many senescence-related genes in rice have been reported, the genome-wide genetic architecture underlying leaf senescence remains poorly understood. In our study, indica and japonica rice showed contrasting responses to dark-induced leaf senescence (DILS). Genome-wide association studies (GWAS) combined with transcriptomic analyses revealed 57, 97, and 48 loci involved in the regulation of the onset, progression, and ending of DILS, respectively. Haplotype analyses showed that the senescence-related loci differentially accumulated in indica and japonica accessions and functioned additively to regulate DILS. A total of 357 candidate genes were identified that are involved in various senescence-related processes such as lipid and amino acid catabolism, photosynthesis, response to reactive oxygen species, and regulation of defense response. In addition, functional analyses of the two candidate genes, OsMYB21 and OsSUB1B, revealed that OsMYB21 positively regulates the onset of DILS, while OsSUB1B negatively regulates its progression. Thus, our results provide new insights into the genetic regulation of DILS in rice
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|a Journal Article
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|a OsMYB21
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|a OsSUB1B
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|a Dark-induced leaf senescence (DILS)
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|a genome-wide association study (GWAS)
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|a onset
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|a progression
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|a Wu, Xiaoyuan
|e verfasserin
|4 aut
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|a Wang, Pengna
|e verfasserin
|4 aut
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|a Wang, Hongru
|e verfasserin
|4 aut
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|a Wang, Lidong
|e verfasserin
|4 aut
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|a Sun, Fang
|e verfasserin
|4 aut
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|a Lu, Cheng
|e verfasserin
|4 aut
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|a Hao, Huaiqing
|e verfasserin
|4 aut
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|a Chu, Chengcai
|e verfasserin
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|a Jing, Hai-Chun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g (2024) vom: 21. Sept.
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g year:2024
|g day:21
|g month:09
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|u http://dx.doi.org/10.1093/jxb/erae391
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