Jinghuan Zhu

HInstitute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
Author    Correspondence author
Triticeae Genomics and Genetics, 2024, Vol. 15, No. 2   doi: 10.5376/tgg.2024.15.0009
Received: 15 Feb., 2024    Accepted: 20 Mar., 2024    Published: 30 Mar., 2024

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Zhu J.H., 2024, Quantitative Trait loci (QTL) mapping in wheat: success stories and lessons learned, Triticeae Genomics and Genetics, 15(2): 88-99 (doi: 10.5376/tgg.2024.15.0009)

Quantitative Trait Loci (QTL) mapping has revolutionized the field of wheat genetics and breeding, enabling the identification of genomic regions associated with key agronomic traits. This study provides a comprehensive overview of the advancements and achievements in QTL mapping for wheat (Triticum aestivum L.), discussing successful cases and lessons learned, with a particular focus on its applications in improving grain yield, quality, and stress resistance. The study delves into methodological advancements, including traditional methods and modern technologies such as high-resolution genetic mapping, advanced statistical methods, and multi-parent cross designs. These advancements have significantly enhanced the precision and accuracy of QTL detection. It also addresses the challenges encountered in QTL mapping, such as environmental interactions and genetic background effects, and introduces strategies to overcome these obstacles, including integrated approaches and the use of high-density maps. Future directions for QTL mapping are explored, emphasizing the integration with genomic selection, improving precision and efficiency through new technologies, and applying these methods to other crops. QTL mapping has profoundly impacted wheat breeding programs, providing tools and insights that facilitate the development of high-yielding, high-quality, and stress-resistant wheat varieties. These findings underscore the importance of continued research and technological integration in advancing global food security and agricultural sustainability.

Wheat; Quantitative trait loci (QTL); Genetic mapping; Grain quality; Yield potential