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Transcriptome analysis of the synergistic mechanisms between two strains of potato virus Y in Solanum tuberosum L.

文献类型： 外文期刊

作者： Xu, Liping 1 ; Zhang, Wei 1 ; Liu, Shangwu 1 ; Gao, Yanling 1 ; Huang, Yuanju 1 ; Nie, Xianzhou 3 ; Bai, Yanju 1 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Harbin, Peoples R China

2.Chinese Acad Agr Sci, China Natl Rice Res Inst, State Key Lab Rice Biol, Hangzhou 310006, Peoples R China

3.Agr & Agrifood Canada, Fredericton Res & Dev Ctr, Fredericton, NB, Canada

4.Northeast Forestry Univ, Coll Life Sci, Harbin 150040, Peoples R China

关键词： PVY; Potato; Physiological; Transcriptome; Cross-protection

期刊名称：VIROLOGY （ 影响因子：3.7； 五年影响因子：3.2 ）

ISSN： 0042-6822

年卷期： 2024 年 594 卷

页码：

收录情况： SCI

摘要： Many viruses employ a process known as superinfection exclusion (SIE) to block subsequent entry or replication of the same or closely related viruses in the cells they occupy. SIE is also referred to as Cross-protection refers to the situation where a host plant infected by a mild strain of a virus or viroid gains immunity against a more severe strain closely related to the initial infectant. The mechanisms underlying cross-protection are not fully understood. In this study, we performed a comparative transcriptomic analysis of potato ( Solanum tuberosum L.) leaves. The strains PVY N-Wi -HLJ-BDH-2 and PVY NTN-NW -INM-W-369-12 are henceforth designated as BDH and 369, respectively. In total, 806 differentially expressed genes (DEGs) were detected between the Control and JZ (preinfected with BDH and challenge with 369) treatment. Gene Ontology (GO) analysis showed that the response to external biological stimulation, signal transduction, kinase, immunity, redox pathways were significantly enriched. Among these pathways, we identified numerous differentially expressed metabolites related to virus infection. Moreover, our data also identified a small set of genes that likely play important roles in the establishment of cross-protection. Specifically, we observed significant differential expression of the A1-II gamma -like gene, elongation factor 1 -alpha -like gene, and subtilisin-like protease StSBT1.7 gene, with StSBT1.7 being the most significant in our transcriptome data. These genes can stimulate the expression of defense plant genes, induce plant chemical defense, and participate in the induction of trauma and pathogenic bacteria. Our findings provided insights into the mechanisms underlying the ability of mild viruses to protect host plants against subsequent closely related virus infection in Solanum tuberosum L.

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