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Transplastomic Tomato Plants Expressing Insect-Specific Double-Stranded RNAs: A Protocol Based on Biolistic
Emine Kaplanoglu1, Igor Kolotilin2, Rima Menassa1,3
1London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON, Canada.
Methods in Molecular Biology (Clifton, N.J.)
|September 8, 2021
Summary
This study introduces a new method for producing insecticidal double-stranded RNA (dsRNA) in tomato plant plastids. This approach enables plant-mediated RNA interference (RNAi) for effective insect pest control.
Area of Science:
- Agricultural Science
- Molecular Biology
- Biotechnology
Background:
- Insect pest control is a major challenge in agriculture.
- RNA interference (RNAi) offers a targeted approach to pest management.
- Current methods for dsRNA production can be inefficient or costly.
Purpose of the Study:
- To develop a novel method for in planta production of insecticidal dsRNA in tomato plants.
- To create a transformation vector for stable plastid transformation and dsRNA accumulation.
- To establish a reliable method for detecting dsRNA in plant plastids.
Main Methods:
- Designing a transformation vector with an expression cassette for plastid transformation.
- Stable transformation of tomato plant plastids.
- Accumulation of dsRNA within plastids.
- Detection of full-length dsRNA using RT-PCR.
Main Results:
- Successful design and implementation of a transformation vector for plastid expression.
- Stable integration and expression of dsRNA in tomato plastids.
- Demonstration of dsRNA accumulation in plastids.
- Validation of an RT-PCR method for dsRNA detection.
Conclusions:
- Plastid-based expression of insecticidal dsRNA is a feasible strategy for in planta production.
- This method holds significant potential for developing advanced plant-mediated RNAi strategies for insect pest control.
- The described protocol facilitates the development and application of this novel pest management technology.
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