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May 18, 2018 · The paper has been published in the European Journal of Agronomy. A potato variety genetically engineered to resist potato blight can help reduce the use of chemical fungicides by up to 90 percent, according to a new study - drastically reducing the environmental impact of potato farming.
- Background Information
- How Are Potatoes Genetically Modified?
- Why Is GM Needed For Late Blight Resistance, Why Not Use Traditional Breeding?
- Tuber Quality Traits: Why Is Bruising An Issue?
Late blight caused the Irish Potato famine of the 19th Century. It results from infection by the fungal-like mould Phytophthora infestans, causing losses of $6B/ year for potato and tomato production.Potato is the fourth most important crop in the world and widely grown in Europe, USA, South America, Canada, China, India and Africa.Potato is easy to modify using strains of nature’s genetic engineer the bacterium Agrobacterium tumefaciens which transfers specific genes into cells of potato. Pieces of potato stem are used for making the genetically modified potato plants. Cells which have received the gene from the bacterium form a mass of undifferentiated cells, or callus, on ...
Traditional breeding techniques have failed to produce varieties that have durable resistance to late blight. This is because they have tended to introduce resistance genes one at a time which are easily overcome by the pathogen. Professor Jonathan Jones says: “If you put in three effective genes at once they are all in effect saving each other bec...
Bruising causes millions of potatoes to be thrown away every year. Maris Piper lines used in these trials have a gene switched off, or silenced, which makes the tuber less prone to bruising and ensure that the potato meets customer quality specifications. “There is a lot of wastage from bruising. Potato harvest is in September/October so to ensure ...
May 26, 2020 · The 100-plus wild species relatives of potato provide a virtually endless source of traits that can be incorporated into elite varieties relatively easily and quickly. Read the original post X ...
Sep 14, 2022 · Potatoes (Solanum tuberosum) are one of the most important crops worldwide. However, its production and nutrient content are endangered by both biotic and abiotic stresses. The main yield losses are caused by pest damage (e.g., Colorado potato beetle and aphids), virus disease (e.g., Potato leafroll virus and Potato viruses Y and X), or oomycete pathogens (like Phytophthora infestans), which ...
Jan 6, 2022 · These problems can be addressed by genetic modification (GM) or gene editing (GE) and open a wide horizon for potato crop improvement. Current genetically modified and gene edited varieties include those with Colorado potato beetle and late blight resistance, reduction in acrylamide, and modified starch content.
- 10.1080/21645698.2021.1993688
- 2021
- GM Crops Food. 2021; 12(1): 479-496.
Oct 20, 2022 · Late blight, caused by Phytophthora infestans, is the most devastating disease in potato production. Here, we show full late blight resistance in a location with a genetically diverse pathogen population with the use of GM potato stacked with three resistance (R) genes over three seasons.
People also ask
Can genetically engineered potatoes reduce the use of chemical fungicides?
Is potato a model for field trials with modified gene functions?
Can genetically modified potatoes survive blight?
Can a genetically modified potato be a fungicide-free crop?
Feb 17, 2014 · By Matt McGrath. Environment correspondent, BBC News. British scientists have developed genetically modified potatoes that are resistant to the vegetable's biggest threat - blight. A...
