Abstract
RNA silencing is a sequence-specific suppression of gene expression conserved in eukaryotes including fungi, plants, and animals. Based on this mechanism, crop improvements have been made to confer pathogen resistance and abiotic stress tolerance. Here we have applied this technique to produce virus resistant tomato plants using host genes involved in viral replication. Tomato homologs of Arabidopsis TOM1 involved in tobamovirus replication has been isolated and used to construct the plasmids that carried inverted repeats of the genes for induction of RNA silencing. Tomato plants were transformed by the plasmids via Agrobacterium, and tested for virus resistance. Actually, the T2 and T3 plants showed resistance to tomato mosaic virus. Here we describe the method to construct RNA silencing-inducing plasmids, to transform tomato plants and to check the introduction of transgenes and virus resistance.
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Acknowledgments
We are grateful to Dr. H. Nyunoya for the advice on tomato transformation. This work was supported by the Program for Promotion of Basic and Applied Research in Bio-oriented Industry (BRAIN) and the Ministry of Education, Culture, Sports and Technology of Japan with the Grant-in-Aid for Scientific Research for Scientific Research (C), No. 24580065 to MN.
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Nishiguchi, M., Ali, E.M., Chen, H., Ishikawa, M., Kobayashi, K. (2019). Resistance Breeding Through RNA Silencing of Host Factors Involved in Virus Replication. In: Kobayashi, K., Nishiguchi, M. (eds) Antiviral Resistance in Plants. Methods in Molecular Biology, vol 2028. Humana, New York, NY. https://doi.org/10.1007/978-1-4939-9635-3_14
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DOI: https://doi.org/10.1007/978-1-4939-9635-3_14
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