气候变化领域集成服务门户(CCPortal): Efficient CRISPR-mediated base editing in agrobacterium spp

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DOI	10.1073/pnas.2013338118
	Efficient CRISPR-mediated base editing in agrobacterium spp
	Rodrigues S.D.; Karimi M.; Impens L.; van Lerberge E.; Coussens G.; Aesaert S.; Rombaut D.; Holtappels D.; Ibrahim H.M.M.; van Montagu M.; Wagemans J.; Jacobs T.B.; de Coninck B.; Pauwels L.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:2
英文摘要	Agrobacterium spp. are important plant pathogens that are the causative agents of crown gall or hairy root disease. Their unique infection strategy depends on the delivery of part of their DNA to plant cells. Thanks to this capacity, these phytopathogens became a powerful and indispensable tool for plant genetic engineering and agricultural biotechnology. Although Agrobacterium spp. are standard tools for plant molecular biologists, current laboratory strains have remained unchanged for decades and functional gene analysis of Agrobacterium has been hampered by time-consuming mutation strategies. Here, we developed clustered regularly interspaced short palindromic repeats (CRISPR)-mediated base editing to enable the efficient introduction of targeted point mutations into the genomes of both Agrobacterium tumefaciens and Agrobacterium rhizogenes. As an example, we generated EHA105 strains with loss-of-function mutations in recA, which were fully functional for maize (Zea mays) transformation and confirmed the importance of RolB and RolC for hairy root development by A. rhizogenes K599. Our method is highly effective in 9 of 10 colonies after transformation, with edits in at least 80% of the cells. The genomes of EHA105 and K599 were resequenced, and genome-wide off-target analysis was applied to investigate the edited strains after curing of the base editor plasmid. The off-targets present were characteristic of Cas9-independent off-targeting and point to TC motifs as activity hotspots of the cytidine deaminase used. We anticipate that CRISPR-mediated base editing is the start of “engineering the engineer,” leading to improved Agrobacterium strains for more efficient plant transformation and gene editing. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Agrobacterium; Base editing; CRISPR; Hairy root disease; Plant transformation
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160183
作者单位	Rodrigues, S.D., Division of Crop Biotechnics, Department of Biosystems, KU Leuven, Leuven, 3001, Belgium; Karimi, M., Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium, Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium; Impens, L., Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium, Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium; van Lerberge, E., Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium, Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium; Coussens, G., Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium, Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium; Aesaert, S., Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium, Center for Plant Systems Biology, VIB, Ghent, 9052, Belgium; Rombaut, D., Department of Plant Biotechnology and Bioinformatics, Gh...
推荐引用方式 GB/T 7714	Rodrigues S.D.,Karimi M.,Impens L.,et al. Efficient CRISPR-mediated base editing in agrobacterium spp[J],2021,118(2).
APA	Rodrigues S.D..,Karimi M..,Impens L..,van Lerberge E..,Coussens G..,...&Pauwels L..(2021).Efficient CRISPR-mediated base editing in agrobacterium spp.Proceedings of the National Academy of Sciences of the United States of America,118(2).
MLA	Rodrigues S.D.,et al."Efficient CRISPR-mediated base editing in agrobacterium spp".Proceedings of the National Academy of Sciences of the United States of America 118.2(2021).