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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/ery442
|2 doi
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|a pubmed24n0973.xml
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|a (DE-627)NLM292059418
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|a (NLM)30576523
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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 Nadir, Sadia
|e verfasserin
|4 aut
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| 245 |
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|a A novel discovery of a long terminal repeat retrotransposon-induced hybrid weakness in rice
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|c 2019
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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
|b cr
|2 rdacarrier
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|a Date Completed 27.04.2020
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|a Date Revised 06.10.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2018. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Hybrid weakness is a post-zygotic hybridization barrier frequently observed in plants, including rice. In this study, we describe the genomic variation among three temperate japonica rice (Oryza sativa ssp. japonica) varieties 'Aranghyangchalbyeo' ('CH7'), 'Sanghaehyangheolua' ('CH8') and 'Shinseonchalbyeo' ('CH9'), carrying different hybrid weakness genes. The reciprocal progeny obtained from crossing any two varieties displayed characteristic hybrid weakness traits. We mapped and cloned a new locus, Hwc3 (hybrid weakness 3), on chromosome 4. Sequence analysis identified that a long terminal repeat (LTR) retrotransposon was inserted into the promoter region of the Hwc3 gene in 'CH7'. A 4-kb DNA fragment from 'CH7' containing the Hwc3 gene with the inserted LTR retrotransposon was able to induce hybrid weakness in hybrids with 'CH8' plants carrying the Hwc1 gene by genetic complementation. We investigated the differential gene expression profile of F1 plants exhibiting hybrid weakness and detected that the genes associated with energy metabolism were significantly down-regulated compared with the parents. Based on our results, we propose that LTR retrotransposons could be a potential cause of hybrid weakness in intrasubspecific hybrids in japonica rice. Understanding the molecular mechanisms underlying intrasubspecific hybrid weakness is important for increasing our knowledge on reproductive isolation and could have significant implications for rice improvement and hybrid breeding
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a japonica
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|a F1 hybrids
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|a LTR retrotransposon
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|a gene expression profiles
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|a genome re-sequencing
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| 650 |
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|a hybrid weakness
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|a polymorphism
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|a rice (Oryza sativa)
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| 650 |
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|a Retroelements
|2 NLM
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| 700 |
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|a Li, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Zhu, Qian
|e verfasserin
|4 aut
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|a Khan, Sehroon
|e verfasserin
|4 aut
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|a Zhang, Xiao-Ling
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Hui
|e verfasserin
|4 aut
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| 700 |
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|a Wei, Zhen-Fei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Meng-Ting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Li
|e verfasserin
|4 aut
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| 700 |
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|a Li, Cheng-Yun
|e verfasserin
|4 aut
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|a Chen, Li-Juan
|e verfasserin
|4 aut
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| 700 |
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|a Lee, Dong-Sun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 70(2019), 4 vom: 20. Feb., Seite 1197-1207
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:70
|g year:2019
|g number:4
|g day:20
|g month:02
|g pages:1197-1207
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/ery442
|3 Volltext
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|d 70
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|h 1197-1207
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