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Integrative Transcriptome, miRNAs, Degradome, and Phytohormone Analysis of Brassica rapa L. in Response to Plasmodiophora brassicae

文献类型： 外文期刊

作者： Wei, Xiaochun 1 ; Liao, Rujiao 1 ; Zhang, Xiaowei 1 ; Zhao, Yanyan 1 ; Xie, Zhengqing 2 ; Yang, Shuangjuan 1 ; Su, Henan 1 ; Wang, Zhiyong 1 ; Zhang, Luyue 2 ; Tian, Baoming 2 ; Wei, Fang 1 ; Yuan, Yuxiang 1 ;

作者机构： 1.Zhengzhou Univ, Inst Hort, Henan Acad Agr Sci, Grad T&R Base, Zhengzhou 450002, Peoples R China

2.Zhengzhou Univ, Sch Agr Sci, Henan Int Joint Lab Crop Gene Resources & Improvem, Zhengzhou 450001, Peoples R China

关键词： Plasmodiophora brassicae; transcriptome; miRNAs; degradome; phytohormone; Brassica rapa L

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN：

年卷期： 2023 年 24 卷 3 期

页码：

收录情况： SCI

摘要： Clubroot is an infectious root disease caused by Plasmodiophora brassicae in Brassica crops, which can cause immeasurable losses. We analyzed integrative transcriptome, small RNAs, degradome, and phytohormone comprehensively to explore the infection mechanism of P. brassicae. In this study, root samples of Brassica rapa resistant line material BrT24 (R-line) and susceptible line material Y510-9 (S-line) were collected at four different time points for cytological, transcriptome, miRNA, and degradome analyses. We found the critical period of disease resistance and infection were at 0-3 DAI (days after inoculation) and 9-20 DAI, respectively. Based on our finding, we further analyzed the data of 9 DAI vs. 20 DAI of S-line and predicted the key genes ARF8, NAC1, NAC4, TCP10, SPL14, REV, and AtHB, which were related to clubroot disease development and regulating disease resistance mechanisms. These genes are mainly related to auxin, cytokinin, jasmonic acid, and ethylene cycles. We proposed a regulatory model of plant hormones under the mRNA-miRNA regulation in the critical period of P. brassicae infection by using the present data of the integrative transcriptome, small RNAs, degradome, and phytohormone with our previously published results. Our integrative analysis provided new insights into the regulation relationship of miRNAs and plant hormones during the process of disease infection with P. brassicae.

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