CRISPR/Cas12a Ribonucleoprotein Complexes Target Conserved WDV Sequences: An In Vitro Proof-of-Concept for Non-GMO Antiviral Strategy
Abstract
Wheat (Triticum aestivum L.) is a staple crop globally, but its yield and quality are significantly affected by viral diseases, particularly the Wheat Dwarf virus (WDV). Developing antiviral strategies is crucial for enhancing wheat productivity. This study aims to investigate the use of CRISPR/Cas12a as an antiviral agent against WDV without requiring genetic modification of the host plants. A total of 10 WDV isolates from wheat and barley collected across six provinces in Türkiye, along with four reference isolates from Hungary, Sweden, and Iran, were analysed. The study demonstrates selective cleavage of conserved WDV regions by CRISPR/Cas12a RNPs in vitro, representing an early proof-of-concept for non-GMO antiviral approaches rather than a direct field application. The designed gRNAs effectively induced DNA cleavage in WDV genomes, with gRNA1 showing consistent performance across all tested isolates. gRNA2 exhibited variability, successfully targeting seven out of ten isolates. No off-target effects were observed in control assays, confirming the specificity of the gRNAs. The CRISPR/Cas12a system, guided by specifically designed gRNAs, can effectively target and cleave WDV genomes, providing a potent, non-GMO antiviral strategy. This approach has potential applications for managing WDV infections in wheat and barley, highlighting its versatility and effectiveness.
Keywords
Supporting Institution
Project Number
Ethical Statement
References
- Abt I, Souquet M, Angot G, Mabon R, Dallot S, Thébaud G & Jacquot E (2019). Functional Transcomplementation between WDV Strains in Wheat and Barley. Viruses, 12(1): 34. https://doi.org/10.3390/v12010034
- Biswas S, Li R, Zhang D, Zhao X & Shi J (2019). Development of methods for effective identification of CRISPR/Cas9-induced indels in rice. Plant Cell Rep. https://doi.org/10.1007/s00299-019-02392-3
- Cai Y, Chen L, Liu X, Guo C, Sun S, Wu C, Jiang B, Han T & Hou W (2019). CRISPR/Cas9-mediated targeted mutagenesis of GmFT2a delays flowering time in soya bean. Plant Biotechnol J 16: 176–185
- D. Bhaya, M. Davison, R. Barrangou, CRISPR-Cas systems in bacteria and archaea: versatile small RNAs for adaptive defense and regulation, Annu. Rev. Genet. 45(2011): 273–297 FAO (2013). Food and Agriculture Organization of the United Nations. http://www.fao.org.
- Garneau J E, Dupius M E, Villion M, Romero D A, Barrangou R, Boyaval P, Fremaux C, Horvath P, Magadán A H & Moineau S (2010). The CRISPR/Cas bacterial immune system cleaves bacteriophage and plasmid DNA. Nature 468: 67–71
- Gasiunas G, Barrangou R, Horvath P& Siksnys V (2012). Cas9-crRNA ribonucleo-protein complex mediates specific DNA cleavage for adaptive immunity in bacteria. Proc Natl Acad Sci U S A 109: 2579–2586
- Gil-Humanes J, Wang Y, Liang Z, Shan Q, Ozuna C V, Sanchez-Leon S, Baltes N J, Starker C, Barro F, Gao C, Voytas D F (2017). High efficiency gene targeting in hexaploid wheat using DNA replicons and CRISPR/Cas9. Plant J 89: 1251–1262
- Horvath P & Barrangou R (2010). CRISPR/Cas, the immune system of bacteria and archaea. Science 327: 167–170 İlbagı H (2006). The Common Reed (Phragmites communis) is a natural host of important cereal viruses in the Trakya region of Türkiye. Phytoparasitica 34: 441-448
Details
Primary Language
English
Subjects
Plant Biotechnology in Agriculture
Journal Section
Research Article
Authors
Buse Baran
This is me
0000-0001-8279-8519
Türkiye
Tarık Teymur
This is me
0000-0002-7442-9446
Türkiye
Ali Ferhan Morca
0000-0002-7480-922X
Türkiye
Muhsin Konuk
0000-0002-6651-718X
Türkiye
Beyza Aydın
This is me
0009-0000-1230-6785
Türkiye
Cihan Taştan
*
0000-0002-4173-6634
Türkiye
Publication Date
March 24, 2026
Submission Date
June 2, 2025
Acceptance Date
November 16, 2025
Published in Issue
Year 2026 Volume: 32 Number: 2