文献类型： 外文期刊

作者： Zhao, Tiantian ¹ ; Zhang, Yuhang ² ; Wang, Fengmin ¹ ; Zhang, Bo ³ ; Chen, Qiang ¹ ; Liu, Luping ¹ ; Yan, Long ¹ ; Yang, Yue ¹ ; Meng, Qingmin ¹ ; Huang, Jinan ¹ ; Zhang, Mengchen ¹ ; Lin, Jing ¹ ; Qin, Jun ¹ ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Hebei Lab Crop Genet & Breeding, Natl Soybean Improvement Ctr Shijiazhuang Sub Ctr,, Huang Huai Hai Key Lab Biol & Genet Improvement So, Shijiazhuang 050035, Peoples R China

2.Guangzhou Univ, Guangdong Key Lab Plant Adaptat & Mol Design, Guangzhou Key Lab Crop Gene Editing, Innovat Ctr Mol Genet & Evolut,Sch Life Sci,Guan, 230 Waihuanxi Rd, Guangzhou 510006, Peoples R China

3.Virginia Tech, Sch Plant & Environm Sci, Blacksburg, VA 24061 USA

关键词： Necrotic response; Transcriptome; Pathogenesis-related protein 1 (PR1); Soybean mosaic virus (SMV); Bulk segregant analysis (BSA)

期刊名称：MOLECULAR BREEDING （ 影响因子：3.1； 五年影响因子：3.1 ）

ISSN： 1380-3743

年卷期： 2023 年 43 卷 2 期

页码：

收录情况： SCI

摘要： Necrosis caused by soybean mosaic virus (SMV) has not been specifically distinguished from susceptible symptoms. The molecular mechanism for the occurrence of necrosis is largely overlooked in soybean genetic research. Field evaluation reveals that SMV disease seriously influences soybean production as indicated by decreasing 22.4% similar to 77.0% and 8.8% similar to 17.0% of yield and quality production, respectively. To expand molecular mechanism behind necrotic reactions, transcriptomic data obtained from the asymptomatic, mosaic, and necrotic pools were assessed. Compared between asymptomatic and mosaic plants, 1689 and 1752 up- and down-regulated differentially expressed genes (DEGs) were specifically found in necrotic plants. Interestingly, the top five enriched pathways with up-regulated DEGs were highly related to the process of the stress response, whereas the top three enriched pathways with down-regulated DEGs were highly related to the process of photosynthesis, demonstrating that defense systems are extensively activated, while the photosynthesis systems were severely destroyed. Further, results of the phylogenetic tree based on gene expression pattern and an amino acid sequence and validation experiments discovered three PR1 genes, Glyma.15G062400, Glyma.15G062500, and Glyma.15G062700, which were especially expressed in necrotic leaves. Meanwhile, exogenous salicylic acid (SA) but not methyl jasmonate (MeJA) could induce the three PR1 gene expressions on healthy leaves. Contrastingly, exogenous SA obviously decreased the expression level of Glyma.15G062400, Glyma.15G062500, and concentration of SMV, but increased Glyma.15G062700 expression in necrotic leaves. These results showed that GmPR1 is associated with the development of SMV-induced necrotic symptoms in soybean. Glyma.15G062400, Glyma.15G062500, and Glyma.15G062700 is up-regulated in necrotic leaves at the transcriptional levels, which will greatly facilitate a better understanding of the mechanism behind necrosis caused by SMV disease.