Application of overexpressed StHsfA2 gene in improvement of yield and quality of potatoes

By overexpressing the StHsfA2 gene in potato plants, the problem of reduced potato yield under high temperature was solved, its heat resistance and yield were improved, and its growth status and quality under high temperature conditions were improved.

CN120888601AActive Publication Date: 2025-11-04SHANGHAI JIAOTONG UNIV
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Patent Information

Application Number
CN202510936311.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2025-11-04
Estimated Expiration
2045-07-08

AI Technical Summary

Technical Problem

In existing technologies, potato yields are severely reduced under high-temperature stress, heat-resistant gene resources are limited, affecting their growth and yield, and there is a lack of effective genetic improvement methods.

Method used

By overexpressing the StHsfA2 gene and using genetic transformation technology to stably express it in potato plants, the heat resistance of potatoes is improved, photochemical efficiency and relative water content of leaves are enhanced, relative electrical conductivity is reduced, and yield and quality are improved under high temperature conditions.

Benefits of technology

It significantly improved the photochemical efficiency and relative water content of potatoes under high temperature, reduced the relative electrical conductivity of leaves, increased the number of tubers, yield and starch content, and enhanced the heat resistance and adaptability of potatoes to growth under high temperature.

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Abstract

The invention discloses application of an overexpressed StHsfA2 gene in improvement of yield and quality of potatoes, and belongs to the technical field of gene engineering. The invention finds that through overexpression of the StHsfA2 gene, the photochemical efficiency of potatoes at high temperature and the relative water content of leaves can be remarkably improved, the relative conductivity of the leaves can be reduced, and the yield and quality of the potatoes in a high-temperature environment can be remarkably improved, specifically, the number of potato tubers, the yield and the starch content are improved; important gene resources, theoretical support and technical support are provided for potato heat-resistant character improvement and heat-resistant potato cultivation.
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Citation Information

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