Application of SNRK2.1 protein and coding gene thereof in improving cold resistance of corn

By overexpressing the SNRK2.1 gene in corn, the cold resistance of corn is improved, and the problem of corn being sensitive to low temperature is solved, and the growth vitality and cold resistance of corn is significantly improved under low temperature conditions.

CN119639810AActive Publication Date: 2025-03-18CHINA AGRI UNIV
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Patent Information

Application Number
CN202411628408.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-03-18
Estimated Expiration
2044-11-14

AI Technical Summary

Technical Problem

Corn is sensitive to low temperature and cold damage, and the prior art is difficult to effectively improve the cold resistance of corn.

Method used

By screening and overexpressing the SNRK2.1 gene, the expression and activity of SNRK2.1 protein in corn is improved, thereby enhancing the cold resistance of corn.

Benefits of technology

Maizes overexpressing the SNRK2.1 gene showed a significant cold-tolerant phenotype and could maintain strong growth vitality and cold resistance under low temperature conditions.

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Abstract

The invention relates to the technical field of biology, in particular to an application of SNRK2.1 protein and an encoding gene thereof in improving the cold resistance of corn. The invention shows that overexpression of the SNRK2.1 gene in corn can enhance the low temperature resistance of the plant, and further provides application of the corn SNRK2.1 protein or the coding gene thereof or a biological material containing the coding gene in any one of the following aspects: (1) changing the cold resistance of the plant; (2) the survival rate of the plants in a low-temperature environment is improved; (3) breeding a transgenic plant with improved cold resistance; and (4) improving plant cold-resistant germplasm resources. The invention provides a new gene resource for cultivating new varieties of low-temperature-resistant plants.
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