Virus resistance in transgenic crop plants: influence of transport protein genes on viral host range, symptom expression and resistance of transgenic plants

Project Information

Grant agreement ID: INTAS-93-0989

Project closed

Start date 1 August 1994

End date 31 July 1995

Funded under

• International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993-

Total cost

No data

EU contribution

€ 70 000,00

Coordinated by

Biologische Bundesanstalt für Land- und Forstwirtschaft
Germany

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Exploitable results

Virus resistance in transgenic crop plants: influence of transport protein genes on viral host range, symptom expression and resistance of transgenic plants

A model system based on a transport-deficient mutant of red clover necrotic mosaic virus (RCNMV) is proposed, consisting of genomic RNA 1 and a supplementary unit representing the 5’- and 3’- regulatory sequences of RCNMV RNA 2 which flank a foreign virus gene of interest. It will be investigated which genes of prunus necrotic ringspot virus (PNRSV), prune dwarf virus (PDV), plum pox potyvirus (PPV) and other plant viruses may be involved in the transport of these viruses in infected plants. Special experiments will be done to confirm participation of the proteins encoded by the transport protein genes in the virus host range and the development of symptoms. The final aim of this project is the evaluation of risks connected with the use of transgenic plants expressing complete or truncated forms of transport proteins and risk assessment concerning recombinant viruses.