Application of gene acnac46 in regulating drought resistance of kiwifruit

By identifying and enhancing the expression of the AcNAC46 gene in kiwifruit, the problem of drought resistance in kiwifruit that is difficult to improve through traditional breeding was solved. This resulted in a highly efficient enhancement of the drought resistance of kiwifruit plants, with significant physiological effects and safety.

CN121718567BActive Publication Date: 2026-06-05SHENZHEN RESEARCH INSTITUTE OF NORTHWEST A & F UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN RESEARCH INSTITUTE OF NORTHWEST A & F UNIVERSITY
Filing Date
2026-02-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional breeding methods are insufficient to efficiently and accurately improve the drought resistance of kiwifruit. Existing drought-resistant gene resources are limited, restricting the stability and expansion of the industry.

Method used

The AcNAC46 gene was cloned and identified. By constructing an overexpression vector and using virus-induced gene silencing technology, the expression level of AcNAC46 in kiwifruit plants was increased, thereby enhancing their drought resistance.

Benefits of technology

It significantly improved the drought resistance of kiwifruit plants, enhanced water retention capacity and membrane stability, maintained photosynthetic function, and achieved a silencing efficiency of up to 75.23%, which is consistent with the physiological basis of the species and has high potential safety.

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Abstract

The application belongs to the technical field of genetic engineering, and relates to application of a gene AcNAC46 in regulation of drought resistance of kiwifruit. By cloning a full-length coding sequence of the gene, a silencing vector is constructed for experiments, and results show that silencing AcNAC46 The leaves of the post-planting plants wilt, the wet weight decreases, the conductivity and the chlorophyll content significantly decrease under drought stress, proving that AcNAC46 The gene is a positive regulation factor for drought resistance. The gene can be used for enhancing drought resistance of kiwifruit, and has important application value.
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