Review
Version 1
Preserved in Portico This version is not peer-reviewed
Engineered Resistance to Tobamoviruses
Version 1
: Received: 29 May 2024 / Approved: 30 May 2024 / Online: 30 May 2024 (10:51:19 CEST)
A peer-reviewed article of this Preprint also exists.
Carr, J.P. Engineered Resistance to Tobamoviruses. Viruses 2024, 16, 1007. Carr, J.P. Engineered Resistance to Tobamoviruses. Viruses 2024, 16, 1007.
Abstract
Tobacco mosaic virus (TMV) was the first virus to be studied in detail and for many years TMV and other tobamoviruses, particularly tomato mosaic virus (ToMV) and tobamoviruses infecting pepper (Capsicum spp.), were serious crop pathogens. By the end of the twentieth and for the first decade of the twenty-first century tobamoviruses were under some degree of control due to introgression of resistance genes into commercial tomato and pepper lines. However, tobamoviruses remained as important models for molecular biology, biotechnology and bio-nanotechnology. Recently, tobamoviruses have again become serious crop pathogens due to the advent of tomato brown rugose fruit virus, which overcomes tomato resistance against TMV and ToMV, and the slow but apparently inexorable worldwide spread of cucumber green mottle mosaic virus, which threatens all cucurbit crops. This review discusses a range of mainly molecular biology-based approaches for protecting crops against tobamoviruses. These include cross-protection (using mild tobamovirus strains to ‘immunize’ plants against severe strains), expressing viral gene products in transgenic plants to inhibit the viral infection cycle, inducing RNA silencing against tobamoviruses by expressing virus-derived RNA sequences in planta or by direct application of double-stranded RNA molecules to non-engineered plants, gene editing of host susceptibility factors, and the transfer and optimization of natural resistance genes.
Keywords
mosaic-virus; novel viruses; pathogen-derived resistance; RNAi; artificial microRNA; plant gene editing; NB-LRR protein; nanoparticle RNA delivery; plant disease; crop protection
Subject
Biology and Life Sciences, Plant Sciences
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment
