ZmUUP5蛋白在调控玉米籽粒品质性状中的应用

By regulating the expression of the ZmUUP5 gene and editing maize genes using the CRISPR/Cas9 system, the problem of regulating maize grain quality and yield has been solved, achieving multi-dimensional improvement of grain traits and promoting the scientific foundation and practical guidance of maize breeding.

CN120944952BActive Publication Date: 2026-07-17SHENYANG AGRI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG AGRI UNIV
Filing Date
2025-09-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, targets that can regulate both the nutritional quality and yield traits of maize kernels are relatively scarce, making it difficult to meet the breeding needs for synergistic improvement of crop yield and quality.

Method used

The study discovered and utilized the ZmUUP5 gene to promote its expression in maize, thereby increasing kernel area, 100-kernel weight, amino acid content, and amylose content, while inhibiting its expression to increase kernel protein content. Gene editing was performed using the CRISPR/Cas9 system.

Benefits of technology

It significantly improved the protein content of corn kernels, increased kernel area, and enhanced the content of amino acids and amylose, providing theoretical guidance and practical direction for corn breeding and promoting the cultivation of new corn varieties with high nutritional value and high yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于分子生物学领域,ZmUUP5蛋白在调控玉米籽粒品质和产量性状中的应用。所述ZmUUP5蛋白的氨基酸序列如SEQ ID NO.2所示,所述ZmUUP5蛋白编码基因的核苷酸序列如SEQ ID NO.1所示。本发明发现ZmUUP5蛋白能够调控玉米籽粒品质和产量性状,玉米中ZmUUP5基因的突变可以提高蛋白质含量,ZmUUP5基因过表达会导致籽粒变大,百粒重增加,可以用于提高玉米产量,还能提高籽粒中的氨基酸和直链淀粉的含量。该发现不仅能为解析籽粒的发育机制提供科学依据,也能够为玉米的遗传改良提供理论指导。
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