SNP (Single Nucleotide Polymorphism) marker related to alpha-tocopherol content of wheat grains and application of SNP marker

By detecting the Ta-6A-SNP haplotype in the wheat genome and using specific primers and PCR reagents, the problem of screening and breeding wheat with high α-tocopherol content was solved, thus improving breeding efficiency and wheat quality.

CN122382229APending Publication Date: 2026-07-14SHANXI AGRI UNIV WHEAT RES INST
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Patent Information

Application Number
CN202510055528.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

There is a lack of effective methods in the current technology for screening and breeding wheat varieties with high α-tocopherol content, which affects the improvement of wheat quality and breeding efficiency.

Method used

A substance for detecting the Ta-6A-SNP haplotype in the wheat genome was developed, including specific primers and PCR reagents. The α-tocopherol content in wheat grains was identified or assisted by the KASP reaction, and wheat with high α-tocopherol content was screened and bred using this SNP site.

Benefits of technology

This method enables efficient screening and breeding of wheat varieties with high α-tocopherol content, improving breeding efficiency and wheat quality, and providing a means for breeding new wheat varieties with high tocopherol content.

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Abstract

The invention discloses an SNP (Single Nucleotide Polymorphism) marker related to the content of alpha-tocopherol in wheat grains and application of the SNP marker. The invention provides an application of a substance for detecting the Ta-6A-SNP unit type of an SNP site in a wheat genome in any one of the following applications: A1) identifying or assisting in identifying the content of alpha-tocopherol in wheat grains; a2) screening or auxiliary screening of wheat with high alpha-tocopherol content in grains; a3) breeding wheat with high alpha-tocopherol content in grains; and A4) wheat genetic breeding. An SNP site Ta-6A-SNP is found on a 6A chromosome of wheat, a molecular marker is developed according to the SNP, and the marker is a KASP marker, is good in repeatability and low in cost, facilitates screening of wheat varieties with high alpha-tocopherol content, and is of great significance to cultivation of new wheat varieties with high alpha-tocopherol content.
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