Genome Analyses Reveal the Secondary Metabolites that Potentially Influence the Geographical Distribution of Fusarium pseudograminearum Populations
文献类型： 外文期刊
作者： Li, Wei 1 ; Cao, Shulin 1 ; Sun, Haiyan 1 ; Yang, Xiaoyue 1 ; Xu, Lei 3 ; Zhang, Xin 1 ; Deng, Yuanyu 1 ; Pavlov, Igor N. 4 ; Litovka, Yulia A. 4 ; Chen, Huaigu 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Jiangsu, Peoples R China
2.Yangzhou Univ, Jiangsu Coinnovat Ctr Modern Prod Technol Grain Cr, Yangzhou 225009, Jiangsu, Peoples R China
3.Nanjing Genepioneer Biotechnol Co Ltd, Nanjing 210046, Jiangsu, Peoples R China
4.VN Sukachev Inst Forest SB RAS, Lab Reforestat Mycol & Plant Pathol, Krasnoyarsk 660036, Russia
5.Reshetnev Siberian State Univ Sci & Technol, Dept Chem Technol Wood & Biotechnol, Krasnoyarsk 660037, Russia
关键词： F. pseudograminearum; Fusarium crown rot; genome; mycotoxin; secondary metabolite biosynthesis gene cluster
期刊名称：PLANT DISEASE （ 影响因子：4.5； 五年影响因子：5.0 ）
ISSN： 0191-2917
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Fusarium crown rot (FCR), caused by Fusarium pseudograminearum, significantly impacts wheat yield and quality in China's Huanghuai region. The rapid F. pseudograminearum epidemic and FCR outbreak within a decade remain unexplained. In this study, two high-quality, chromosome-level genomes of F. pseudograminearum strains producing 3-acetyl-deoxynivalenol (3AcDON) and 15-acetyl-deoxynivalenol (15AcDON) toxins were assembled. Additionally, 38 related strains were resequenced. Genomic differences such as single nucleotide polymorphisms (SNPs), insertions/deletions (indels), and structural variations (SVs) among F. pseudograminearum strains were analyzed. The whole-genome SNP locus-based population classification mirrored the toxin chemotype (3AcDON and 15AcDON)-based classification, indicating the presence of genes associated with the trichothecene toxin gene cluster. Further analysis of differential SNP, indel, and SV loci between the 3AcDON and 15AcDON populations revealed a predominant connection to secondary metabolite synthesis genes. Notably, the majority of the secondary metabolite biosynthesis gene cluster loci were located in SNP-dense genomic regions, suggesting high mutability and a possible contribution to F. pseudograminearum population structure and environmental adaptability. This study provides insightful perspectives on the distribution and evolution of F. pseudograminearum and for forecasting the spread of wheat FCR, thereby aiding in the development of preventive measures and control strategies.
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