GM Rice

This pathogen-derived resistance mechanism has been found to naturally occur in plants and is similar in theory to the immune system of mammals. In cases where gene expression of a

Source: John Innes Centre

pathogen was found to be dysfunctional, in excess or progressed at the wrong developmental stage of the pathogen’s life cycle, development of the disease is prevented. In the case of RYMV resistant rice, the transgenes that are introduced were taken from highly conserved sequences of the RNA-dependent RNA polymerase of RYMV genome. This polymerase enzyme plays an important role in viral replication. The transgene activates a sequence-specific RNA degradation system in the rice such that when RYMV infects a resistant rice variety, the viral RNA will be destroyed when detected. This technology is also called RNA silencing.

For more information on the technology developed at John Innes Centre, please contact Dr. Yvonne M. Pinto (email: y.pinto@gtep.co.uk), The Cereals Research Department, John Innes Centre, Colney Lane, Norwich, Norfolk, NR 47 UH, UK.

Related topics:

• Virus resistance
• Virus resistance technology
• Nematode resistance
• Nematode resistance technology
• Herbicide tolerance
• Herbicide tolerance technology
• Iron-rich
• Golden rice
  • The technology
  • The developers
  • Issues
  • Current status

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