Lan Zhou¹ , Yan Bao¹ , Dongna Zhang² , Shuling Wang¹ , Yingji Zhang¹ , Xuetao Yu¹

1 Jilin Agricultural Science and Technology University, Jilin, 220200, Jilin, China
2 Economic Information Center of Zhenlai County, Zhenlai, 220821, Jilin, China
Author    Correspondence author
Molecular Plant Breeding, 2024, Vol. 15, No. 6   
Received: 10 Oct., 2024    Accepted: 13 Nov., 2024    Published: 21 Nov., 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.

Ear rot is an important disease affecting maize production, resulting in serious yield loss and quality decline. Using a set of maize line populations, QTL mapping was performed to identify genomic regions associated with ear rot resistance. This study found several significant QTLS associated with ear rot resistance, some of which overlapped with regions controlling yield traits, suggesting that both resistance and yield could be improved. The SNP markers identified were used in marker-assisted selection (MAS) strategies to accelerate the development of high-yielding and disease-resistant maize varieties. The aim of this study was to use single nucleotide polymorphism (SNP) markers to locate quantitative trait loci (QTL) for maize ear rot resistance, and to improve high yield and disease resistance. These findings provide important genetic insights into ear rot resistance in maize and provide a framework for future breeding efforts aimed at improving maize productivity and disease resistance.

QTL mapping; SNP markers; Resistance to ear rot; Maize breeding; High yield traits