Journal of Tianjin Agricultural University ›› 2025, Vol. 32 ›› Issue (6): 83-89.doi: 10.19640/j.cnki.jtau.2025.06.012

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Current status and progress of QTL researches on the main agronomic and quality traits of sorghum

Luo Feng, Yang Tingjin, Sun Andong   

  1. Tianjin Key Laboratory of Intelligent Breeding for Major Crops, College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2024-06-29 Published:2025-12-26

Abstract: Sorghum, as an important food, feed, and energy crop, occupies an important position in global agriculture. With the development of China's economy, the demand for sorghum is constantly increasing. Therefore, breeding high-yield and high- quality varieties is crucial for the development of the sorghum industry. QTL gene mapping is an important technique in genetics used to locate and identify genes that control quantitative traits, and therefor to explore related genes that control agronomic and quality traits in sorghum. This article reviews the current research status of QTL mapping for agronomic traits such as sorghum plant height and tillering, as well as quality traits such as tannin, starch, and protein. At present, QTL research on the main agronomic and quality traits of sorghum still faces problems such as environmental factors, low marker density, poor accuracy of phenotypic traits, and gene interactions. This article provides a prospect for the future of QTL research in sorghum, and provides theoretical guidance for researchers engaged in sorghum gene cloning, gene mapping, establishment of gene maps, and molecular marker assisted selection breeding.

Key words: sorghum, QTL, agronomic traits, quality traits

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