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Lookup NU author(s): Rebecca Stafford, Professor Neil Boonham, Professor Rick Mumford, Professor Robert Edwards
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Herbicide resistance in wild grasses is widespread in the UK, with non-target site resistance (NTSR) to multiple chemistries being particularly problematic in weed control. As a complex trait, NTSR is driven by complex evolutionary pressures and the growing awareness of the role of the phytobiome in plant abiotic stress tolerance, led us to sequence the transcriptomes of herbicide resistant and susceptible populations of black-grass and annual rye-grass for the presence of endophytes. Black-grass (Alopecurus myosuroides; Am) populations, displaying no overt disease symptoms, contained three previously undescribed viruses belonging to the Partititiviridae (AMPV1 and AMPV2) and Rhabdoviridae (AMVV1) families. These infections were widespread in UK black-grass populations and evidence was obtained for similar viruses being present in annual rye grass (Lolium rigidum), perennial rye-grass (Lolium perenne) and meadow fescue (Festuca pratensis). In black-grass, while no direct causative link was established linking viral infection to herbicide resistance, transcriptome sequencing showed a high incidence of infection in the NTSR Peldon population. The widespread infection of these weeds by little characterised and persistent viruses and their potential evolutionary role in enhancing plant stress tolerance mechanisms including NTSR warrants further investigation.
Author(s): Sabbadin F, Glover R, Stafford R, Rozado-Aguirre Z, Boonham N, Adams I, Mumford R, Edwards R
Publication type: Article
Publication status: Published
Journal: Scientific Reports
Year: 2017
Volume: 7
Online publication date: 06/02/2017
Acceptance date: 04/01/2017
Date deposited: 06/02/2017
ISSN (electronic): 2045-2322
Publisher: Nature Publishing Group
URL: http://dx.doi.org/10.1038/srep41987
DOI: 10.1038/srep41987
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