Population Genetic Analyses and Trichothecene Genotype Profiling of Fusarium pseudograminearum Causing Wheat Crown Rot in Henan, China
文献类型： 外文期刊
作者： Zhang, Jianzhou 1 ; Zhang, Jiahui 2 ; Wang, Jianhua 3 ; Zhang, Mengyuan 3 ; Li, Chunying 1 ; Wang, Wenyu 3 ; Suo, Yujuan 3 ; Song, Fengping 2 ;
作者机构： 1.Henan Acad Agr Sci, Wheat Res Inst, Zhengzhou 450002, Peoples R China
2.Tibet Agr & Anim Husb Univ, Plant Sci Coll, Linzhi 860000, Peoples R China
3.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Minist Agr, Shanghai 201403, Peoples R China
关键词： Fusarium crown rot; Fusarium pseudograminearum; trichothecene genotype; mating type
期刊名称：JOURNAL OF FUNGI （ 影响因子：4.7； 五年影响因子：5.2 ）
ISSN：
年卷期： 2024 年 10 卷 4 期
页码：
收录情况： SCI
摘要： In China, Fusarium pseudograminearum has emerged as a major pathogen causing Fusarium crown rot (FCR) and caused significant losses. Studies on the pathogen's properties, especially its mating type and trichothecene chemotypes, are critical with respect to disease epidemiology and food/feed safety. There are currently few available reports on these issues. This study investigated the species composition, mating type idiomorphs, and trichothecene genotypes of Fusarium spp. causing FCR in Henan, China. A significant shift in F. pseudograminearum-induced FCR was found in the present study. Of the 144 purified strains, 143 were F. pseudograminearum, whereas only 1 Fusarium graminearum was identified. Moreover, a significant trichothecene-producing capability of F. pseudograminearum strains from Henan was observed in this work. Among the 143 F. pseudograminearum strains identified, F. pseudograminearum with a 15ADON genotype was found to be predominant (133 isolates), accounting for 92.36% of all strains, followed by F. pseudograminearum with a 3ADON genotype, whereas only one NIV genotype strain was detected. Overall, a relatively well-balanced 1:1 ratio of the F. pseudograminearum population was found in Henan. To the best of our knowledge, this is the first study that has examined the Fusarium populations responsible for FCR across the Henan wheat-growing region.
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