Small RNA and Degradome Deep Sequencing Reveal Regulatory Roles of MicroRNAs in Response to Sugarcane Mosaic Virus Infection on Two Contrasting Sugarcane Cultivars

文献类型： 外文期刊

第一作者： Yuan, Yuan

作者： Yuan, Yuan;Huang, Cuilin;Pan, Kaiyuan;Yao, Wei;Zhang, Muqing;Yuan, Yuan;Xia, Rui

作者机构：

关键词： degradome; miR160; small RNA sequencing; sugarcane; sugarcane mosaic virus

期刊名称：MOLECULAR PLANT-MICROBE INTERACTIONS （ 影响因子：3.2； 五年影响因子：3.5 ）

ISSN： 0894-0282

年卷期： 2024 年 37 卷 7 期

页码：

收录情况： SCI

摘要： MicroRNAs (miRNAs) play an essential regulatory role in plant-virus interaction. However, few studies have focused on the roles of miRNAs and their targets after sugarcane mosaic virus (SCMV) infection in sugarcane. To address this issue, we conducted small RNA (sRNA) and degradome sequencing on two contrasting sugarcanes (SCMV-resistant 'Fuoguo1' [FG1] and susceptible 'Badila') infected by SCMV at five time points. A total of 1,578 miRNAs were profiled from 30 sRNA libraries, comprising 660 known miRNAs and 380 novel miRNAs. Differential expression analysis of miRNAs revealed that most were highly expressed during the SCMV exponential phase in Badila at 18 h postinfection, with expression profiles positively correlated with virus replication dynamics as observed through clustering. Analysis of degradome data indicated a higher number of differential miRNA targets in Badila compared to FG1 at 18 h postinfection. Gene ontology (GO) enrichment analysis significantly enriched the stimulus-response pathway, suggesting negative regulatory roles to SCMV resistance. Specifically, miR160 upregulated expression patterns and validated in Badila through quantitative real-time PCR (qRT-PCR) in the early stages of SCMV multiplication. Our research provides new insights into the dynamic response of plant miRNA and virus replication and contributes valuable information on the intricate interplay between miRNAs and SCMV infection dynamics.Copyright (c) 2024 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.

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