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RNAi protection passes from stock to scion

Results from a study by a Japanese research group have shown that RNAi-mediated resistance to viral pathogens can be transmitted from genetically modified stock to non-GM scion tissue. The study looked at the effects of RNAi-mediated silencing of two endogenous tobacco genes, NtTOM1 and NtTOM3, which are required for tobamovirus replication. Results showed that virus resistance was transmitted from GM Nicotiana tabacum or N benthemiana stocks to scions of either species.



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