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240530s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2024.112134
|2 doi
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|a pubmed24n1444.xml
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|a (DE-627)NLM372991440
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|a (NLM)38810885
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|a (PII)S0168-9452(24)00161-4
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|a DE-627
|b ger
|c DE-627
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|a eng
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|a Li, Jie
|e verfasserin
|4 aut
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|a A novel PLS-DYW type PPR protein OsASL is essential for chloroplast development in rice
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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 09.06.2024
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|a Date Revised 18.06.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier B.V. All rights reserved.
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|a Oryza longistaminata (OL), an AA-genome African wild rice which can propagate clonally via rhizome, is an important germplasm for improvement of Asian cultivated rice, however recessive lethal alleles can hitchhike clonal propagation in heterozygous state. Selfing of OL is difficult due to its self-incompatibility, but simple selfing of hybrid progeny between OL and O. sativa is effective to disclose and eliminate recessive lethal alleles. Here, we identified an exhibited albino-lethal phenotype mutant, from an F2 population between OL and O. sativa, named it albino seedling-lethal (asl). The leaves of asl mutant showed abnormal chloroplast development. The albino characteristics of asl were determined to be governed by a set of recessive nuclear genes through genetic analysis. Map-based cloning experiments found that a single nucleotide variation (G to A) was detected in the exon of OsASL in OL, which causes a premature stop codon. OsASL encodes a PLS-type PPR protein with 12 pentratricopeptide repeat domains, and is translocalized to chloroplasts. Complementation and knockout transgenic experiments further confirmed that OsASL is responsible for the albino-lethal phenotype. Loss-of-function OsASL (i.e. osasl) resulted in devoid of intron splicing of chloroplast RNA atpF, ndhA, rpl2 and rps12, and also RNA editing of ndhB, but facilitates the RNA editing of rpl2 in the plastid. Transcriptome sequencing showed that OsASL was mainly involved in chlorophyll synthesis pathway. The expression of Chlorophyll-associated genes were significantly decreased in asl plants, especially PEP (plastid-encoded RNA polymerase)-mediated genes. Our results suggest that OsASL is crucial for RNA editing, RNA splicing of chloroplast RNA group II genes, and plays an essential role in chloroplast development during early leaf development in rice
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|a Journal Article
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|a Albino-lethal
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|a Chloroplast development
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|a Oryza longistaminata
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|a Pentatricopeptide repeat
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|a Plant Proteins
|2 NLM
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| 700 |
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|a Chen, Shufang
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Yu
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Weidong
|e verfasserin
|4 aut
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|a Yang, Jiangyi
|e verfasserin
|4 aut
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| 700 |
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|a Fan, Yourong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 345(2024) vom: 27. Juni, Seite 112134
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
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|g volume:345
|g year:2024
|g day:27
|g month:06
|g pages:112134
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|u http://dx.doi.org/10.1016/j.plantsci.2024.112134
|3 Volltext
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