• English
  • Español
  • 简体中文
  • Nederlands

Scientists discover wild potatoes key for stronger spuds

Descubren que las patatas silvestres son claves para aumentar la resistencia

Scientists discover wild potatoes key for stronger spuds.

August 14, 2019
Potatoes have been a staple of Scotland’s diet for half a millennium, but new research suggests that limited genetic differences in potato lineages has left British and American spuds vulnerable to the disease that caused the Irish potato famine.

Plant scientists at the University of Dundee and the James Hutton Institute have revealed that commercial potato crops are under constant threat of late blight, the pathogen behind one of Europe’s most devastating famines, but wild potato genes might be the cure.

Dr Ingo Hein, Principal Investigator in plant pathogen co-evolution, says that by using tools his team has developed they could put potato breeders at ease, helping farmers produce fit fritters instead of the frail.

Dr Ingo Hein, Principal Investigator in plant pathogen co-evolution:

“By using the dRenSeq and PenSeq tools we have developed here in Scotland in collaboration with peers at the Sainsbury Laboratory in Norwich, they are able for the first time ever to track the historical and geographical patterns of resilient genes in American and British potatoes.”

“Our preliminary data suggests that the most commercially valuable potato varieties grown in the UK and US contain a maximum of four genes already defeated by the late blight pathogen, P. infestans.”

“Crucially, we have also been able to identify new genes that remain effective against this disease which are not current used in commercial potato production and so by combining these effective genes we can prolong the longevity of individual resistances to the disease and reduce the need for chemical sprays on plants.”

“This is highly relevant for breeding as currently the control methods for late blight in most parts of the world are based mainly on the use of chemical sprays which can be environmentally hazardous and expensive.”
Dr Hein has been awarded £625k in funding from the Biotechnology and Biological Sciences Research Council (BBSRC) to continue identifying the more resilient potatoes with industry partners McCain, Greenvale and James Hutton Limited.
Companies in this Article
McCain Foods Limited is an international leader in the frozen food industry and the world’s largest manufacturer of frozen potato specialities, employing approximately 18,000 people and operating 50 production facilities on six continents.
Greenvale AP is a leading supplier of fresh potatoes and the UK's largest grower of organic potatoes. The company operates two packing facilities.
The James Hutton Institute is an international research centre based in Scotland.
The Sainsbury Laboratory (TSL) is a world-leading research institute working on the science of plant-microbe interactions.