J Integr Plant Biol.

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Efficient genome editing in tomato using Cas12i3 variants

Siqun Wu1†, Lei Zhu1, 2†, Meili Zhou2, Bo Yu3, Jinkai Li4, Xiaomu Niu2, Pengcheng Wang1, Jian-Kang Zhu1, 5, 6* and Zhaobo Lang1*   

  1. 1. Institute of Advanced Biotechnology, Institute of Homeostatic Medicine and School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China;
    2. Bellagen Biotechnology Co., Ltd, Jinan 250000, China;
    3. Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China;
    4. BGI Research, Shenzhen 518083, China;
    5. Key Laboratory of Gene Editing Technologies, Ministry of Agricultural and Rural Affairs/National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya 572024, China;
    6. School of Medicine, Macau University of Science and Technology, Macau SAR 999078, China
    These authors contributed equally to this work.
    *Correspondences: Zhaobo Lang (langzb@sustech.edu.cn, Dr. Lang is fully responsible for the distribution of all materials associated with this article); Jian-Kang Zhu (zhujk@sustech.edu.cn)
  • Received:2026-05-22 Accepted:2026-09-01 Online:2026-09-14
  • Supported by:
    This work was supported by the Agriculture Science and Technology Major Project, and National Key R&D Program of China (Grant numbers: 2021YFA1300404), the National Natural Science Foundation of China (Grant numbers: 31900394, 31671735, and 31970516), the Key R&D Program of Shandong Province, China (Competitive Innovation Platform) (2023CXPT095), the Shenzhen Science and Technology Program (Grant numbers: JCYJ20241202125311016 KQTD20240729102038044, and KJZD20240903102703005), and Shandong Shunfeng Biotechnology Co., Ltd., Jinan, China.

Abstract: Systematic comparison of Cas12i gene-editing tools in tomato identifies Cas-SF01 as the most efficient variant, achieving editing efficiencies comparable to conventional Cas9 at some genomic sites and providing a compact, highly specific, and versatile tool for studying gene function, engineering fruit metabolism, and developing improved tomato varieties through precision breeding.

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