Major locus for wheat flour wet gluten content and SNP marker marker45403 and application

By constructing a high-density genetic map of the RIL population and performing QTL mapping analysis, tightly linked SNP markers on chromosome 1D were identified. This solved the problem of insufficient major loci and SNP markers for wet gluten content in wheat flour in existing technologies, and achieved the goal of efficiently screening and breeding wheat varieties with high wet gluten content.

CN122279077APending Publication Date: 2026-06-26SHANDONG AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG AGRICULTURAL UNIVERSITY
Filing Date
2024-04-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, there are few major-effect sites and SNP markers used for molecular marker-assisted breeding to improve the wet gluten content of wheat flour, making it difficult to effectively increase the wet gluten content of wheat flour.

Method used

A RIL population was constructed using Nongda Nuomai No. 1 as the female parent and Gaocheng 8901 as the male parent. A high-density genetic map was constructed using SLAF-Seq technology, and combined with QTL mapping analysis, closely linked SNP markers Marker45889, Marker45896, Marker45348, Marker45403, Marker45397 and Marker45431 located on chromosome 1D were identified for screening and breeding wheat varieties with high wet gluten content.

Benefits of technology

It provides closely linked SNP markers, offering theoretical guidance for gene discovery and molecular marker-assisted breeding of wet gluten content in wheat flour, and improving the breeding efficiency of wet gluten content in wheat flour.

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Abstract

This invention provides major loci and SNP marker Marker 45403 for wet gluten content in wheat flour and their applications. This invention belongs to the field of wheat breeding technology and mainly provides SNP molecular markers Marker 45403 and Marker 45431. The SNP loci provided by this invention are of great significance for detecting and breeding wheat flour varieties, lines, and breeding materials with high FWG content. Molecular markers can be developed based on them to accelerate the efficiency of wheat quality breeding.
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