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Comparative transcriptomic analysis highlights contrasting levels of resistance of Vitis vinifera and Vitis amurensis to Botrytis cinerea

文献类型： 外文期刊

作者： Wan, Ran 1 ; Guo, Chunlei 1 ; Hou, Xiaoqing 1 ; Zhu, Yanxun 1 ; Gao, Min 1 ; Hu, Xiaoyan 1 ; Zhang, Songlin 1 ; Jiao, Che 1 ;

作者机构： 1.Northwest A&F Univ, Coll Hort, State Key Lab Crop Stress Biol Arid Areas, Xianyang 712100, Shaanxi, Peoples R China

2.Henan Agr Univ, Coll Hort, Zhengzhou 450002, Henan, Peoples R China

3.Hebei Normal Univ Sci & Technol, Coll Hort Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China

4.Northwest A&F Univ, Key Lab Hort Plant Biol & Germplasm Innovat North, Minist Agr, Yangling 712100, Shaanxi, Peoples R China

5.Cornell Univ, Boyce Thompson Inst Plant Res, Ithaca, NY 14853 USA

6.Guangxi Acad Agr Sci, Grape & Wine Res Inst, Nanning 53000, Guangxi, Peoples R China

期刊名称：HORTICULTURE RESEARCH （ 影响因子：5.404； 五年影响因子：5.57 ）

ISSN： 2662-6810

年卷期： 2021 年 8 卷 1 期

页码：

收录情况： SCI

摘要： Botrytis cinerea is a major grapevine (Vitis spp.) pathogen, but some genotypes differ in their degree of resistance. For example, the Vitis vinifera cultivar Red Globe (RG) is highly susceptible, but V. amurensis Rupr Shuangyou (SY) is highly resistant. Here, we used RNA sequencing analysis to characterize the transcriptome responses of these two genotypes to B. cinerea inoculation at an early infection stage. Approximately a quarter of the genes in RG presented significant changes in transcript levels during infection, the number of which was greater than that in the SY leaves. The genes differentially expressed between infected leaves of SY and RG included those associated with cell surface structure, oxidation, cell death and C/N metabolism. We found evidence that an imbalance in the levels of reactive oxygen species (ROS) and redox homeostasis probably contributed to the susceptibility of RG to B. cinerea. SY leaves had strong antioxidant capacities and improved ROS homeostasis following infection. Regulatory network prediction suggested that WRKY and MYB transcription factors are associated with the abscisic acid pathway. Weighted gene correlation network analysis highlighted preinfection features of SY that might contribute to its increased resistance. Moreover, overexpression of VaWRKY10 in Arabidopsis thaliana and V. vinifera Thompson Seedless enhanced resistance to B. cinerea. Collectively, our study provides a high-resolution view of the transcriptional changes of grapevine in response to B. cinerea infection and novel insights into the underlying resistance mechanisms.

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