MicroRNA-guided regulation of heat stress response in wheat

Ravichandran, Sridhar; Ragupathy, Raja; Edwards, Tara; Domaratzki, Michael; Cloutier, Sylvie

MicroRNA-guided regulation of heat stress response in wheat

Simple item page

Full item details

creativework.keywords - en: microRNA; epigenetics; heat stress; wheat
creativework.keywords - fr: microARN; épigénétique; stress thermique; blé
dc.contributor.author: Ravichandran, Sridhar; Ragupathy, Raja; Edwards, Tara; Domaratzki, Michael; Cloutier, Sylvie
dc.date.accessioned: 2023-04-13T20:07:49Z
dc.date.available: 2023-04-13T20:07:49Z
dc.date.issued: 2019-06-19
dc.description.abstract - en: Background: With rising global temperature, understanding plants’ adaptation to heat stress has implications in plant breeding. MicroRNAs (miRNAs) are small, non-coding, regulatory RNAs guiding gene expression at the posttranscriptional level. In this study, small RNAs and the degradome (parallel analysis of RNA ends) of leaf tissues collected from control and heat-stressed wheat plants immediately at the end of the stress period and 1 and 4 days later were analysed. Results: Sequencing of 24 small RNA libraries produced 55.2 M reads while 404 M reads were obtained from the corresponding 24 PARE libraries. From these, 202 miRNAs were ascertained, of which mature miRNA evidence was obtained for 104 and 36 were found to be differentially expressed after heat stress. The PARE analysis identified 589 transcripts targeted by 84 of the ascertained miRNAs. PARE sequencing validated the targets of the conserved members of miRNA156, miR166 and miR393 families as squamosa promoter-binding-like, homeobox leucine-zipper and transport inhibitor responsive proteins, respectively. Heat stress responsive miRNA targeted superoxide dismutases and an array of homeobox leucine-zipper proteins, F-box proteins and protein kinases. Query of miRNA targets to interactome databases revealed a predominant association of stress responses such as signalling, antioxidant activity and ubiquitination to superoxide dismutases, F-box proteins, pentatricopeptide repeatcontaining proteins and mitochondrial transcription termination factor-like proteins. Conclusion: The interlaced data set generated in this study identified and validated heat stress regulated miRNAs and their target genes associated with thermotolerance. Such accurate identification and validation of miRNAs and their target genes are essential to develop novel regulatory gene-based breeding strategies.
dc.identifier.citation: Ravichandran, S., Ragupathy, R., Edwards, T., Domaratzki, M., &; Cloutier, S. (2019). MicroRNA-guided regulation of heat stress response in wheat. BMC Genomics, 20(1). https://doi.org/10.1186/s12864-019-5799-6
dc.identifier.doi: https://doi.org/10.1186/s12864-019-5799-6
dc.identifier.issn: 1471-2164
dc.identifier.uri: https://open-science.canada.ca/handle/123456789/159
dc.language.iso: en
dc.publisher: Springer Nature
dc.rights.openaccesslevel - en: Gold
dc.rights.openaccesslevel - fr: Or
dc.subject - en: Agriculture
dc.subject - fr: Agriculture
dc.subject.en - en: Agriculture
dc.subject.fr - fr: Agriculture
dc.title - en: MicroRNA-guided regulation of heat stress response in wheat
dc.title.fosrctranslation - fr: MicroRNA-guided regulation of heat stress response in wheat
dc.type - en: Article
dc.type - fr: Article
local.article.journaltitle: BMC Genomics
local.article.journalvolume: 20
local.peerreview - en: Yes
local.peerreview - fr: Oui
local.requestdoi: Yes