Environmental Risks Associated with Viral Recombination in Virus Resistant Transgenic Plants - Final Report
نویسنده
چکیده
Disclaimer The views and opinions in this report do not necessarily reflect those of the Commonwealth Government or the Minister for the Environment and Heritage.
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...
متن کاملNo recombination detected in artificial potyvirus mixed infections and between potyvirus derived transgenes and heterologous challenging potyviruses.
Risk-assessment studies of virus-resistant transgenic plants (VRTPs) focussing on recombination of a plant virus with a transgenic sequence of a different virus should include a comparison of recombination frequencies between viruses in double-infected non-transgenic plants with those observed in singly infected transgenic plants to estimate recombination incidence in VRTPs. In this study, the ...
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 کاملConcerns of resistant markers in marine ecosystem transformed plants
World population growth and requirement to global food security, application of genetic engineering and utilization of transgenic organisms have made more important. Using this technology, without regarding to its risks, can cause loses to environment. To generate transgenic organisms, selection systems are applied that cause to selective growth of transformed cells. Antibiotic resistance genes...
متن کاملGM Gene Flow (B) Horizontal gene transfer of viral inserts from GM plants to viruses
Introduction The use of GM plants containing viral inserts (as transgenes or promoters) raises the possibility that these inserts may lead to the creation of new viruses through recombination (HGT). Viruses commonly evolve by recombination and have been shown to recombine with transgenes which are derived from viruses in numerous laboratory-scale experiments (e.g. Greene and Allison 1994, 1996)...
متن کامل