A SNP marker related to sugar tolerance of grass carp and its application

By studying the SNP markers in the Gys2 gene of grass carp, sites related to sugar resistance are found, and an SNP molecular marker for identification or breeding of high-sugar-resistant grass carp is provided, which solves the problem of grass carp's low utilization ability of sugar, and achieves rapid identification and breeding of sugar-resistant grass carp, promoting the sustainable development of the industry.

CN118667974BActive Publication Date: 2025-05-13PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI
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Patent Information

Application Number
CN202410964536.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-05-13
Estimated Expiration
2044-07-18

AI Technical Summary

Technical Problem

Grass carp has a low ability to utilize sugar, which leads to an increase in feed costs and affects the sustainable development of the industry. At the same time, traditional breeding methods are time-consuming and cannot meet market demand.

Method used

By studying the SNP marker in the Gys2 gene of grass carp, it was found that the AA/GG/AG polymorphic site located at position 207 of the 5' end is related to the sugar resistance performance of grass carp, providing a SNP molecular marker for identifying or breeding high-glycemic grass carp.

Benefits of technology

The SNP marker can quickly and simply identify high-sugar-resistant grass carp, assist in breeding new sugar-resistant grass carp products, improve grass carp's ability to utilize sugar, improve sub-health problems caused by feeding high-sugar feed, and promote sustainable development of the industry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention belongs to the field of molecular markers, and specifically relates to a SNP marker related to the sugar tolerance of grass carp and its application. The SNP marker related to the sugar tolerance of grass carp obtained by the present invention is located at the 207th nucleotide at the 5' end of the sequence shown in SEQ ID NO.1, and is based on the base mutation generated inside the glycogen synthase Gys2 gene, so there is no genetic exchange and no further verification of the phenotype is required. The marker of the present invention can be used to simply and quickly identify high-sugar-tolerant grass carp, and the marker can also be used to assist in the breeding of new sugar-tolerant grass carp strains.
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