Recombination in RNA viruses and in virus-resistant transgenic plants.
نویسندگان
چکیده
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منابع مشابه
Evaluation of potential risks associated with recombination in transgenic plants expressing viral sequences.
Virus-resistant transgenic plants have been created primarily through the expression of viral sequences. It has been hypothesized that recombination between the viral transgene mRNA and the RNA of an infecting virus could generate novel viruses. As mRNA/viral RNA recombination can occur in virus-resistant transgenic plants, the key to testing this risk hypothesis is to compare the populations o...
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s of Presentations ...........................................................................................15 Coat-Protein-Mediated Virus Resistance in Plants by Rebecca Grumet....................................................................................16 Movement Protein-Mediated Resistance by Roger N. Beachy...............................................................................
متن کاملInduction of Resistance to Potato Virus Y (PVY) Using Hairpin Construct of Coat Protein
Potato virus Y (PVY) is one of the most damaging viruses of potato plants which infecting most cultivars and causing significant yield and economical losses. The application of the concept of pathogen derived resistance opened new horizons for the development of virus-resistant plants. This research was carried out to study RNA silencing to engineered potato plants that are resistant to potato ...
متن کاملAnalysis of recombination between viral RNAs and transgene mRNA under conditions of high selection pressure in favour of recombinants.
One possible environmental risk related to the utilization of virus-resistant transgenic plants expressing viral sequences is the emergence of new viruses generated by recombination between the viral transgene mRNA and the RNA of an infecting virus. This hypothesis has been tested recently for cucumber mosaic virus (CMV) by comparing the recombinant populations in transgenic and non-transgenic ...
متن کاملPathogen derived resistance to Potato virus Y: mechanisms and risks
Since the concept of pathogen derived resistance (PDR) was proposed in 1985, genetic transformation of plants to express virus-derived sequences has been used to engineer resistance to many viruses. This paper reviews PDR approaches to Potato virus Y (PVY, type member of the genus Potyvirus). PDR to viruses operates often through RNA-mediated resistance mechanisms that do not require protein ex...
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عنوان ژورنال:
- The Journal of general virology
دوره 80 ( Pt 6) شماره
صفحات -
تاریخ انتشار 1999