文献类型： 外文期刊
作者： Wu, Junhua 1 ; Yang, Wencai 1 ; Shi, Xiangdong 2 ; Zhang, Bao 1 ; Jiang, Min 3 ; Qi, Xin 3 ; Ma, Jun 3 ; Jaqueth, Jennifer S. 4 ; Li, Bailin 4 ; Dai, Mingqiu 1 ; Peng, Yunling 6 ; Lai, Zhibing 1 ;
作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Hubei, Peoples R China
2.China Natl Seed Grp Co Ltd, Sanya, Peoples R China
3.Liaoning Acad Agr Sci, Shenyang, Peoples R China
4.Corteva Agrisci, Johnston, IA 50131 USA
5.Hubei Hongshan Lab, Wuhan 430070, Hubei, Peoples R China
6.Gansu Agr Univ, Lanzhou 730070, Peoples R China
7.Huazhong Agr Univ, Shenzhen Inst Nutr & Hlth, Wuhan 430070, Peoples R China
8.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Guangdong Lab Lingnan Modern Agr, Shenzhen Branch,Genome Anal Lab,Minist Agr, Shenzhen 518000, Peoples R China
关键词： NCLB; Maize; qNCLB3.04; Resistance; Fine-mapping
期刊名称：MOLECULAR BREEDING （ 影响因子：3.0； 五年影响因子：3.0 ）
ISSN： 1380-3743
年卷期： 2025 年 45 卷 7 期
页码：
收录情况： SCI
摘要： Northern Corn Leaf Blight (NCLB), caused by the fungal pathogen Setosphaeria turcica, is a destructive disease on maize. Identification of resistance quantitative trait loci (QTLs) or genes is crucial for breeding maize varieties with durable resistance to NCLB. Although a lot of resistance QTLs against NCLB have been isolated, only a few have been fine-mapped to date. Here, a BC1F1 population was developed from a cross between the resistance line CIMBL75 and the susceptible line Liao3162. This population was inoculated with mixed conidia of six S. turcica races. Through five field trials, five resistance QTLs against NCLB were identified in this BC1F1 population. One of them, qNCLB3.04 on bin3.04, was repeatedly detected across all five trials. It explained 4.8-9.3% of phenotypic variation. Furthermore, the qNCLB3.04 locus was narrowed down to a 5.053 Mb region by using a progeny-based sequential fine-mapping strategy. Hence, qNCLB3.04 holds significant potential for improving maize broad-spectrum resistance against NCLB.
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