Identification of novel drought-responsive miRNA regulatory network of drought stress response in common vetch (Vicia sativa)

文献类型： 外文期刊

第一作者： Zhu, Yongqun

作者： Zhu, Yongqun;Liu, Qiuxu;Xu, Wenzhi;Yao, Li;Wang, Xie;Wang, Hong;Xu, Yalin;Duan, Chunhua;Lin, Chaowen;Li, Linxiang;Yi, Zhixin

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关键词： common vetch; Vicia sativa; microRNA; drought stress; high-throughput sequencing; target gene

期刊名称：OPEN LIFE SCIENCES （ 影响因子：0.938； 五年影响因子：1.154 ）

ISSN： 2391-5412

年卷期： 2021 年 16 卷 1 期

页码：

收录情况： SCI

摘要： Drought is among the most important natural dis-asters with severe effects on animals and plants. MicroRNAs are a class of noncoding RNAs that play a crucial role in plant growth, development, and response to stress factors, including drought. However, the microRNAs in drought responses in common vetch (Vicia sativa), an annual her-baceous leguminous plant commonly used for forage by including it in mixed seeding during winter and spring, have not been characterized. To explore the microRNAs' response to drought in common vetch, we sequenced 10 small RNA (sRNA) libraries by the next-generation sequen-cing technology. We obtained 379 known miRNAs belonging to 38 families and 47 novel miRNAs. The two groups had varying numbers of differentially expressed miRNAs: 85 in the comparison group D5 vs C5 and 38 in the comparison group D3 vs C3. Combined analysis of mRNA and miRNA in the same samples under drought treatment identified 318 different target genes of 123 miRNAs. Functional annotation of the target genes revealed that the miRNAs regulate drought-responsive genes, such as leucine-rich repeat receptor-like kinase-encoding genes (LRR-RLKs), ABC transporter G family member 1 (ABCG1), and MAG2-interacting protein 2 (MIP2). The genes were involved in various pathways, including cell wall biosynthesis, reactive oxygen removal, and protein trans-port. The findings in this study provide new insights into the miRNA-mediated regulatory networks of drought stress response in common vetch.

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