Extraction and purification of large dsRNAs from virus-infected plants and fungi; applications in virus detection and identification
2017
Valverde,R. A. | De La Torre-Almaraz,R.
Abstract. Various methods for the extraction and purification of large dsRNAs are used to conduct detection and identification of viruses in plants and fungi. The most widely used protocol consists in phenol extraction and selective binding of dsRNA to cellulose. Purified viral dsRNAs from plants and fungi have been analyzed by gel electrophoresis and used as a complementary tool for virus identification. Moreover, dsRNAs have been used as reagent for reverse transcription PCR, molecular cloning, preparation of probes, and sequencing of RNA viruses. Many RNA viruses and subviral molecules infecting plants and fungi have been discovered using dsRNA extraction protocols. Recent improvements on dsRNA extraction methods have increased their efficiency, and cost effectiveness. It has been shown that viral dsRNA can be used as an initial reagent for next generation sequencing of viral genomes.
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