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240723s2024 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19978
|2 doi
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|a pubmed24n1509.xml
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|a eng
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|a Fu, Huiqi
|e verfasserin
|4 aut
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|a Ultraviolet attenuates centromere-mediated meiotic genome stability and alters gametophytic ploidy consistency in flowering plants
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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 22.08.2024
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|a Date Revised 22.08.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.
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|a Ultraviolet (UV) radiation influences development and genome stability in organisms; however, its impact on meiosis, a special cell division essential for the delivery of genetic information across generations in eukaryotes, has not yet been elucidated. In this study, by performing cytogenetic studies, we reported that UV radiation does not damage meiotic chromosome integrity but attenuates centromere-mediated chromosome stability and induces unreduced gametes in Arabidopsis thaliana. We showed that functional centromere-specific histone 3 (CENH3) is required for obligate crossover formation and plays a role in the protection of sister chromatid cohesion under UV stress. Moreover, we found that UV specifically alters the orientation and organization of spindles and phragmoplasts at meiosis II, resulting in meiotic restitution and unreduced gametes. We determined that UV-induced meiotic restitution does not rely on the UV Resistance Locus8-mediated UV perception and the Tapetal Development and Function1- and Aborted Microspores-dependent tapetum development, but possibly occurs via altered JASON function and downregulated Parallel Spindle1. This study provides evidence that UV radiation influences meiotic genome stability and gametophytic ploidy consistency in flowering plants
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|a Journal Article
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|a Arabidopsis thaliana
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|a centromere
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|a chromosome
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|a cytoskeleton
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|a meiosis
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|a meiotic restitution
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|a ultraviolet
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|a unreduced gametes
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|a Arabidopsis Proteins
|2 NLM
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|a Histones
|2 NLM
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| 700 |
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|a Zhong, Jiaqi
|e verfasserin
|4 aut
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|a Zhao, Jiayi
|e verfasserin
|4 aut
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|a Huo, Li
|e verfasserin
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|a Wang, Chong
|e verfasserin
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|a Ma, Dexuan
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|a Pan, Wenjing
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|a Sun, Limin
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|a Ren, Ziming
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|a Fan, Tianyi
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|a Wang, Ze
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|a Wang, Wenyi
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|a Lei, Xiaoning
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|a Yu, Guanghui
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|a Li, Jing
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|a Zhu, Yan
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|a Geelen, Danny
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|a Liu, Bing
|e verfasserin
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 243(2024), 6 vom: 22. Aug., Seite 2214-2234
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:243
|g year:2024
|g number:6
|g day:22
|g month:08
|g pages:2214-2234
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|u http://dx.doi.org/10.1111/nph.19978
|3 Volltext
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