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Profiling of the Salt Stress Responsive MicroRNA Landscape of C4 Genetic Model Species Setaria viridis (L.) Beauv4.88 MB
Published VersionCC BY V4.0, Open Access
Journal article
Profiling of the Salt Stress Responsive MicroRNA Landscape of C4 Genetic Model Species Setaria viridis (L.) Beauv
Agronomy , Vol.10(6), pp.1-25
2020
Abstract
Setaria viridishas recently emerged as an ideal model species to genetically characterize the C(4)monocotyledonous grasses via a molecular modification approach. Soil salinization has become a compelling agricultural problem globally with salinity adversely impacting the yield potential of many of the major cereals. Small regulatory molecules of RNA, termed microRNAs (miRNAs), were originally demonstrated crucial for developmental gene expression regulation in plants, however, miRNAs have since been shown to additionally command a central regulatory role in abiotic stress adaptation. Therefore, a small RNA sequencing approach was employed to profile the salt stress responsive miRNA landscapes of the shoot and root tissues of twoSetaria viridisaccessions (A10 and ME034V) amenable to molecular modification. Small RNA sequencing-identified abundance alterations for miRNAs, miR169, miR395, miR396, miR397, miR398 and miR408, were experimentally validated via RT-qPCR. RT-qPCR was further applied to profile the molecular response of the miR160 and miR167 regulatory modules to salt stress. This analysis revealed accession- and tissue-specific responses for the miR160 and miR167 regulatory modules in A10 and ME034V shoot and root tissues exposed to salt stress. The findings reported here form the first crucial step in the identification of the miRNA regulatory modules to target for molecular manipulation to determine if such modification providesS. viridiswith an improved tolerance to salt stress.
Details
- Title
- Profiling of the Salt Stress Responsive MicroRNA Landscape of C4 Genetic Model Species Setaria viridis (L.) Beauv
- Authors
- Joseph L Pegler (Author) - University of Newcastle AustraliaDuc Quan Nguyen (Author) - University of Newcastle AustraliaChristopher P L Grof (Author) - University of Newcastle AustraliaAndrew Eamens (Author) - University of Newcastle Australia
- Publication details
- Agronomy , Vol.10(6), pp.1-25
- Publisher
- MDPI AG
- Date published
- 2020
- DOI
- 10.3390/agronomy10060837
- ISSN
- 2073-4395
- Copyright note
- © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
- Organisation Unit
- School of Health - Biomedicine; University of the Sunshine Coast, Queensland; School of Health and Behavioural Sciences - Legacy
- Language
- English
- Record Identifier
- 99656588702621
- Output Type
- Journal article
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