A method for creating a lodging-resistant wheat with improved plant type by using a CRISPR / Cas gene editing system

By targeting and knocking out the TaNPT1 protein in wheat using the CRISPR/Cas12i3-5M gene editing system, combined with T5E exonuclease treatment, the problem of poor lodging resistance in wheat was solved, and the stem structure and compressive strength were improved, thereby increasing wheat yield and quality.

CN122405697APending Publication Date: 2026-07-17INSTITUTE OF CROP SCIENCE CHINESE ACADEMY OF AGRICULTURAL SCIENCES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INSTITUTE OF CROP SCIENCE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
Filing Date
2025-01-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing wheat varieties have poor lodging resistance, leading to a decline in yield and quality. Furthermore, current gene editing technologies have low efficiency in wheat editing, making it difficult to effectively improve stem structure and compressive strength.

Method used

By using the CRISPR/Cas12i3-5M gene editing system to target and knock out the expression and activity of TaNPT1 protein in wheat, combined with T5E exonuclease treatment, the compressive strength and lodging resistance of the stems were improved. Efficient gene editing was achieved using CRISPR/Cas9 and CRISPR/T5E-Cas12i3-5M tools.

Benefits of technology

Without affecting wheat yield, it significantly improves wheat's lodging resistance, increases stem diameter and lignin content, enhances stem compressive strength, reduces tiller number, improves plant type, and increases yield and disease and pest resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种利用CRISPR / Cas基因编辑体系创制株型改良抗倒伏小麦的方法。本发明提供了抑制小麦中TaNPT1蛋白的表达和 / 或活性在提高小麦抗倒伏性中的应用;所述TaNPT1蛋白为TaNPT1‑A蛋白(SEQ ID No.1)、TaNPT1‑B蛋白(SEQ ID No.2)和 / 或TaNPT1‑D蛋白(SEQ ID No.3)。本发明通过CRISPR / Cas9和CRISPR / T5E‑Cas12i3‑5M基因编辑技术敲除TaNPT1基因,在不影响或提高产量的情况下,创制了株型改良抗倒伏小麦新种质,并且本发明为解析TaNPT1基因在小麦中的功能及作用机制奠定了基础。
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