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December 4th, 2019 / TSL

A genetically modified potato with improved tuber quality and resistance to the devastating disease late blight has progressed successfully through the latest stage of trials.

The field trials follow successful lab experiments to modify Maris Piper potatoes with late blight resistance genes from wild relatives of potato called Solanum americanum and Solanum venturii.

To improve tuber quality, the modified Maris Piper lines also have genes switched off – or “silenced” – to reduce browning upon bruise damage and to avoid cold-induced sweetening (which is the accumulation of reducing sugars during cold storage that causes blackening when potatoes are cooked at high temperatures). Read more …