Combined small RNA and gene expression analysis revealed roles of miRNAs in maize response to rice black-streaked dwarf virus infection.

Abstract

Maize rough dwarf disease, caused by rice black-streaked dwarf virus (RBSDV), is a devastating disease in maize (Zea mays L.). MicroRNAs (miRNAs) are known to play critical roles in regulation of plant growth, development, and adaptation to abiotic and biotic stresses. To elucidate the roles of miRNAs in the regulation of maize in response to RBSDV, we employed high-throughput sequencing technology to analyze the miRNAome and transcriptome following RBSDV infection. A total of 76 known miRNAs, 226 potential novel miRNAs and 351 target genes were identified. Our dataset showed that the expression patterns of 81 miRNAs changed dramatically in response to RBSDV infection. Transcriptome analysis showed that 453 genes were differentially expressed after RBSDV infection. GO, COG and KEGG analysis results demonstrated that genes involved with photosynthesis and metabolism were significantly enriched. In addition, twelve miRNA-mRNA interaction pairs were identified, and six of them were likely to play significant roles in maize response to RBSDV. This study provided valuable information for understanding the molecular mechanism of maize disease resistance, and could be useful in method development to protect maize against RBSDV.

• Authors: Aiqin Li, Guanghui Li, Yuhan Zhao, Zhaodong Meng, Meng Zhao, Changsheng Li, Ye Zhang, Pengcheng Li, Chang-Le Ma, Han Xia, Shuzhen Zhao, Lei Hou, Chuanzhi Zhao, Xingjun Wang
• Journal: Scientific reports (Sci Rep) Vol. 8 Issue 1 Pg. 13502 (09 10 2018) ISSN: 2045-2322 [Electronic] England
• PMID: 30201997 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• MicroRNAs

Topics

• Disease Resistance (genetics)
• Gene Expression Profiling
• Gene Expression Regulation, Plant
• Gene Regulatory Networks (genetics)
• Host-Pathogen Interactions (genetics)
• Metabolic Networks and Pathways (genetics)
• MicroRNAs (genetics, metabolism)
• Photosynthesis (genetics)
• Plant Diseases (genetics, virology)
• Plant Viruses (pathogenicity)
• Real-Time Polymerase Chain Reaction
• Zea mays (genetics, metabolism, virology)