The microRNA response associated with methyl jasmonate-induced resistance in Norway spruce bark
| Autor: | Paal Krokene, Samuel W. Wilkinson, Adam Vivian-Smith, Melissa H. Mageroy |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Messenger RNA Methyl jasmonate biology fungi Picea abies Plant Science biology.organism_classification 01 natural sciences Biochemistry Cell biology Transcriptome 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology Downregulation and upregulation chemistry Gene expression microRNA Genetics Gene 010606 plant biology & botany Biotechnology |
| Zdroj: | Plant Gene |
| ISSN: | 2352-4073 |
| DOI: | 10.1016/j.plgene.2021.100301 |
| Popis: | Methyl jasmonate (MeJA) treatment elicits induced resistance (IR) against pests and diseases in Norway spruce (Picea abies). We recently demonstrated using mRNA-seq that this MeJA-IR is associated with both a prolonged upregulation of inducible defenses and defense priming. Gene expression can be regulated at both a transcriptional and post-transcriptional level by small RNAs, including microRNAs (miRNAs). Here we explore the effects of MeJA treatment and subsequent challenge by wounding on the Norway spruce miRNA transcriptome. We found clusters of prolonged down- or upregulated miRNAs as well as miRNAs whose expression was primed after MeJA treatment and subsequent wounding challenge. Differentially expressed miRNAs included miR160, miR167, miR172, miR319, and the miR482/2118 superfamily. The most prominent mRNA targets predicted to be differentially expressed by miRNA activity belonged to the nucleotide-binding site leucine-rich repeat (NBS-LRR) family. Among other predicted miRNA targets were genes regulating jasmonic acid biosynthesis. Our results indicate that miRNAs have an important role in the regulation of MeJA-IR in Norway spruce. |
| Databáze: | OpenAIRE |
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