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Targeted mutagenesis in soybean using the CRISPR-Cas9 system

Open access
Sun, Xianjun, Hu, Zheng, Chen, Rui, Jiang, Qiyang, Song, Guohua, Zhang, Hui, Xi, Yajun·2015·Scientific Reports

Abstract

Genome editing is a valuable technique for gene function analysis and crop improvement. Over the past two years, the CRISPR-Cas9 system has emerged as a powerful tool for precisely targeted gene editing. In this study, we predicted 11 U6 genes in soybean (Glycine max L.). We then constructed two vectors (pCas9-GmU6-sgRNA and pCas9-AtU6-sgRNA) using the soybean U6-10 and Arabidopsis U6-26 promoters, respectively, to produce synthetic guide RNAs (sgRNAs) for targeted gene mutagenesis. Three genes, Glyma06g14180, Glyma08g02290 and Glyma12g37050, were selected as targets. Mutations of these three genes were detected in soybean protoplasts. The vectors were then transformed into soybean hairy roots by Agrobacterium rhizogenes infection, resulting in efficient target gene editing. Mutation efficiencies ranged from 3.2–9.7% using the pCas9-AtU6-sgRNA vector and 14.7–20.2% with the pCas9-GmU6-sgRNA vector. Biallelic mutations in Glyma06g14180 and Glyma08g02290 were detected in transgenic hairy roots. Off-target activities associated with Glyma06g14180 and Glyma12g37050 were also detected. Off-target activity would improve mutation efficiency for the construction of a saturated gene mutation library in soybean. Targeted mutagenesis using the CRISPR-Cas9 system should advance soybean functional genomic research, especially that of genes involved in the roots and nodules.

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Metadata

Authors
Sun, X., Hu, Z., Chen, R., Jiang, Q., Song, G., Zhang, H., & Xi, Y.
Venue
Scientific Reports
Published
2015-05-29
Volume
5
Issue
1
Pages
10342-10342
ISSN
2045-2322 (ISSN-L)
OpenAlex
W1510606824
Cited by
371
References
7
FWCI
11.96
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Targeted mutagenesis in soybean using the CRISPR-Cas9 system. https://app.cochat.ai/papers/10.1038/srep10342
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Sun, X., Hu, Z., Chen, R., Jiang, Q., Song, G., Zhang, H., & Xi, Y. (2015). Targeted mutagenesis in soybean using the CRISPR-Cas9 system. Scientific Reports. https://doi.org/10.1038/srep10342

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