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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19451
|2 doi
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|a pubmed24n1271.xml
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|a (NLM)38037276
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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 |
1 |
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|a Dou, Shengwei
|e verfasserin
|4 aut
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| 245 |
1 |
4 |
|a The self-compatibility is acquired after polyploidization
|b a case study of Brassica napus self-incompatible trilinear hybrid breeding system
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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
|b cr
|2 rdacarrier
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|a Date Completed 26.01.2024
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|a Date Revised 26.01.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.
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|a Self-incompatibility plays a vital role in angiosperms, by preventing inbreeding depression and maintaining genetic diversity within populations. Following polyploidization, many angiosperm species transition from self-incompatibility to self-compatibility. Here, we investigated the S-locus in Brassicaceae and identified distinct origins for the sRNA loci, SMI and SMI2 (SCR Methylation Inducer 1 and 2), within the S-locus. The SMI loci were found to be widespread in Cruciferae, whereas the SMI2 loci were exclusive to Brassica species. Additionally, we discovered four major S-haplotypes (BnS-1, BnS-6, BnS-7, and BnS-1300) in rapeseed. Overexpression of BnSMI-1 in self-incompatible Brassica napus ('S-70S1300S6 ') resulted in a significant increase in DNA methylation in the promoter regions of BnSCR-6 and BnSCR-1300, leading to self-compatibility. Conversely, by overexpressing a point mutation of BnSmi-1 in the 'S-70S1300S6 ' line, we observed lower levels of DNA methylation in BnSCR-6 and BnSCR-1300 promoters. Furthermore, the overexpression of BnSMI2-1300 in the 'SI-326S7S6 ' line inhibited the expression of BnSCR-7 through transcriptional repression of the Smi2 sRNA from the BnS-1300 haplotype. Our study demonstrates that the self-compatibility of rapeseed is determined by S-locus sRNA-mediated silencing of SCR after polyploidization, which helps to further breed self-incompatible or self-compatible rapeseed lines, thereby facilitating the utilization of heterosis
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4 |
|a Journal Article
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| 650 |
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|a Brassica napus
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| 650 |
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4 |
|a DNA methylation
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| 650 |
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4 |
|a Smi
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| 650 |
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4 |
|a Smi2
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| 650 |
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4 |
|a self-compatibility
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| 650 |
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4 |
|a self-incompatibility
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| 650 |
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7 |
|a RNA, Small Untranslated
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Zhang, Tong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Lulin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Chuang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Quan, Chengtao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liang, Xiaomei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Chaozhi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dai, Cheng
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 241(2024), 4 vom: 14. Jan., Seite 1690-1707
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:241
|g year:2024
|g number:4
|g day:14
|g month:01
|g pages:1690-1707
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| 856 |
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|u http://dx.doi.org/10.1111/nph.19451
|3 Volltext
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