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Engineered RNA-mediated resistance to tomato spotted wilt virus is sequence specific
M Prins1, R de O Resende, C Anker
1Department of Virology, Wageningen Agricultural University, Wageningen; The Netherlands.
Molecular Plant-Microbe Interactions : MPMI
|July 1, 1996
Summary
Transgenic plants expressing tomato spotted wilt virus (TSWV) N or NS(M) genes showed resistance to the virus. This targeted gene expression is key for developing TSWV-resistant crops.
Area of Science:
- Plant molecular biology
- Virology
- Crop science
Background:
- Tomato spotted wilt virus (TSWV) poses a significant threat to global agriculture, causing substantial crop losses.
- Developing effective resistance strategies in plants is crucial for sustainable agriculture and food security.
Purpose of the Study:
- To investigate the potential of transgenic expression of tomato spotted wilt virus (TSWV) RNA genome sequences for conferring resistance in plants.
- To identify specific TSWV gene sequences that can induce resistance against the virus.
Main Methods:
- Generation of transgenic plants expressing random sequences from the TSWV RNA genome or its complement.
- Evaluation of TSWV resistance in the progenies of these transgenic plants through challenge assays.
Main Results:
- Transgenic expression of randomly selected TSWV gene sequences was achieved.
- Only the expression of the N gene or the NS(M) gene sequences conferred significant resistance to TSWV infection.
Conclusions:
- The N and NS(M) genes of TSWV are critical targets for developing virus-resistant transgenic plants.
- Targeted expression of specific viral gene sequences offers a viable strategy for engineering crop resistance against TSWV.