Genome-Wide Association Study for Fusarium Head Blight Resistance in Common Wheat from China
文献类型： 外文期刊
作者： Shi, Chaonan 1 ; Chao, Huaiyu 1 ; Sun, Xiaonan 2 ; Suo, Yongqiang 1 ; Chen, Zeyu 1 ; Li, Zhikang 1 ; Ma, Lin 2 ; Li, Jiaqi 2 ; Ren, Yan 2 ; Hua, Wei 3 ; Lan, Caixia 1 ; Chen, Feng 2 ;
作者机构： 1.Huazhong Agr Univ, Coll Plant Sci & Technol, Natl Key Lab Crop Genet Improvement, Hubei Hongshan Lab, Wuhan 430070, Peoples R China
2.Henan Agr Univ, Agron Coll, Natl Key Lab Wheat & Maize Crop Sci, Zhengzhou 450002, Peoples R China
3.Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China
关键词： Fusarium head blight; genome-wide association study; resistance locus; haplotype analysis
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2023 年 13 卷 7 期
页码：
收录情况： SCI
摘要： As a devastating wheat disease, Fusarium head blight (FHB) causes large losses in yield and quality. The purpose of this study was to detect the genetic loci for FHB resistance based on a genome-wide association study (GWAS) using two panels genotyped by the Wheat 660 K SNP array and Wheat 90 K SNP array. Phenotypic investigation results showed that 43.6-51.6% of the test varieties showed an infection type of more than 3, indicating that substantial improvement in the level of resistance was urgently required. GWAS detected 1264 SNPs associated with FHB response distributed on all wheat chromosomes. Fourteen QTL were stably detected in two environments. gFHB-1B (582.9 similar to 607.9 Mb on chromosome 1B) and gFHB-5A (577.9 similar to 596.5 Mb on 5A) were two novel resistance loci that were detected in two wheat panels. Haplotype analysis of both gFHB-1B and gFHB-5A indicated that varieties with gFHB-1B_R and gFHB-5A_R had consistently less FHB than varieties carrying a one or no resistance QTL. The application frequency of the FHB-resistant alleles gFHB-1B and gFHB-5A showed a gradually decreasing trend in FHB resistance breeding. This study identified new genetic loci for the control of FHB and provides useful information for marker-assisted selection in wheat FHB resistance.
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