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Gene targeting using the Agrobacterium tumefaciens-mediated CRISPR-Cas system in rice

Open access
Xu, Rongfang, Li, Hao, Qin, Ruiying, Wang, Lu, Li, Li, Wei, Pengcheng, Yang, Jianbo·2014·Rice

Abstract

Background: The type II clustered, regularly interspaced, short palindromic repeat (CRISPR)/ CRISPR-associated protein 9 (Cas9) system is a novel molecular tool for site-specific genome modification. The CRISPR-Cas9 system was recently introduced into plants by transient or stable transformation. Findings: Here, we report gene targeting in rice via the Agrobacterium tumefaciens-mediated CRISPR-Cas9 system. Three 20-nt CRISPR RNAs were designed to pair with diverse sites followed by the protospacer adjacent motif (PAM) of the rice herbicide resistance gene BEL. After integrating the single-guide RNA (sgRNA) and Cas9 cassette in a single binary vector, transgenic rice plants harboring sgRNA:Cas9 were generated by A. tumefaciens-mediated stable transformation. By analyzing the targeting site on the genome of corresponding transgenic plants, the mutations were determined. The mutagenesis efficiency was varied from ~2% to ~16%. Furthermore, phenotypic analysis revealed that the biallelic mutated transgenic plant was sensitive to bentazon. Conclusions: Our results indicate that the agricultural trait could be purposely modified by sgRNA:Cas9-induced gene targeting. CRISPR-Cas9 system could be exploited as a powerful tool for trait improvements in crop breeding.

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Metadata

Authors
Xu, R., Li, H., Qin, R., Wang, L., Li, L., Wei, P., & Yang, J.
Venue
Rice
Published
2014-05-02
Volume
7
Issue
1
Pages
5-5
ISSN
  • 1939-8425 (ISSN-L)
  • 1939-8433
OpenAlex
W2129993269
Cited by
227
References
4
FWCI
8.52
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Gene targeting using the Agrobacterium tumefaciens-mediated CRISPR-Cas system in rice. https://app.cochat.ai/papers/10.1186/s12284-014-0005-6
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Xu, R., Li, H., Qin, R., Wang, L., Li, L., Wei, P., & Yang, J. (2014). Gene targeting using the Agrobacterium tumefaciens-mediated CRISPR-Cas system in rice. Rice. https://doi.org/10.1186/s12284-014-0005-6

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