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|a 10.1093/jxb/erad467
|2 doi
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|a pubmed24n1311.xml
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|a eng
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|a Zhang, Hui
|e verfasserin
|4 aut
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|a Insertion of a miniature inverted-repeat transposable element into the promoter of OsTCP4 results in more tillers and a lower grain size in rice
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 29.02.2024
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|a Date Revised 29.02.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a A class I PCF type protein, TCP4, was identified as a transcription factor associated with both grain size and tillering through a DNA pull-down-MS assay combined with a genome-wide association study. This transcription factor was found to have a significant role in the variations among the 533 rice accessions, dividing them into two main subspecies. A Tourist-like miniature inverted-repeat transposable element (MITE) was discovered in the promoter of TCP4 in japonica/geng accessions (TCP4M+), which was found to suppress the expression of TCP4 at the transcriptional level. The MITE-deleted haplotype (TCP4M-) was mainly found in indica/xian accessions. ChIP-qPCR and EMSA demonstrated the binding of TCP4 to promoters of grain reservoir genes such as SSIIa and Amy3D in vivo and in vitro, respectively. The introduction of the genomic sequence of TCP4M+ into different TCP4M- cultivars was found to affect the expression of TCP4 in the transgenic rice, resulting in decreased expression of its downstream target gene SSIIa, increased tiller number, and decreased seed length. This study revealed that a Tourist-like MITE contributes to subspecies divergence by regulating the expression of TCP4 in response to environmental pressure, thus influencing source-sink balance by regulating starch biosynthesis in rice
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|a Journal Article
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|a Grain size
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|a MITE
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|a TCP
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|a rice
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|a tiller number
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|a DNA Transposable Elements
|2 NLM
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|a Transcription Factors
|2 NLM
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| 700 |
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|a Zhang, Juncheng
|e verfasserin
|4 aut
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|a Xu, Pengkun
|e verfasserin
|4 aut
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| 700 |
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|a Li, Ming
|e verfasserin
|4 aut
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| 700 |
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|a Li, Yibo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 75(2024), 5 vom: 28. Feb., Seite 1421-1436
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|x 1460-2431
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|g volume:75
|g year:2024
|g number:5
|g day:28
|g month:02
|g pages:1421-1436
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|u http://dx.doi.org/10.1093/jxb/erad467
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