Gene-edited crops a ‘step closer’ in the UK

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Three precision-bred cereal varieties are being tested. Credit: PROBITY

Precision-bred cereal crops will soon be planted on commercial farms in the UK for the first time as part of new Government-based project.

Trial plots of a precision-bred wheat variety have now been harvested, marking the start of the "groundbreaking" project.

PROBITY (a platform to rate organisms bred for improved traits and yield) has brought together farmers, scientists and food manufacturers to trial the production and processing of precision-bred crops in an attempt to accelerate understanding of their potential value to sustainable food and farming.

The Genetic Technology (Precision Breeding) Act 2023 allowed for the release and marketing of certain gene-edited plants, making England the only country in Europe where this novel material can be grown in farmers’ fields.

Led by the British On-Farm Innovation Network (BOFIN), PROBITY is a three-year £2.2m multi-partner project, funded by Defra’s Farming Innovation Programme and delivered by Innovate UK.

Productive, nutritional and sustainable crop varieties

Precision-bred crops can be created through gene editing technology, which enables scientists to make changes to plant DNA in a precise and targeted manner. Gene editing can accelerate the process of breeding more productive, nutritional and sustainable crop varieties.

The seed harvested from plots at the John Innes Centre near Norwich will be multiplied up during 2025, to enable farmers in England to grow trials of the crop the following year.

Two further cereal varieties are being grown in glasshouses at Rothamsted Research, and once harvested this autumn, will also be multiplied up to be trialled on farms.

The three varieties will be grown on commercial farms and subjected to testing and scrutiny by farmers, scientists and food manufacturers to establish their potential.

The three cereal varieties in the project are: wheat with superior baking, toasting and processing properties; barley making high lipid, high energy forage aimed at lowering livestock methane emissions; and wheat with a bigger bolder grain size promising a step change in productivity.

Multi-partner project

Tom Allen-Stevens, Oxfordshire farmer and founder of BOFIN said: “This is an incredibly important project for farming and food production in this country.

“We need to produce more, nutritious food with fewer resources and with less impact on the environment. Scientists have been developing new crop varieties that could help us rise to that challenge. This project will bring those varieties from the laboratory to farmers’ fields where we can fully assess their potential, explore barriers to their adoption and pave the way for future innovation.”

Professor Nigel Halford, technical lead of PROBITY and scientist at Rothamsted Research, developed the healthier wheat line and believes it is important the new varieties are grown on farms so that farmers and food manufacturers can view their benefits and then want to use them.

The high lipid barley variety was developed by Professor Peter Eastmond at Rothamsted Research, who added: “This project is hugely significant as it’s the first time in my career that it’s been possible to grow these varieties on real farms. The work leading to this point has all been funded by the taxpayer so it is extremely important to take it to the next stage and see if this trait could stand up from a commercial point of view.”

Professor Cristobal Uauy, scientist at John Innes Centre who developed the bigger bolder wheat variety, concluded: “This project provides a unique opportunity to work with farmers and test precision-bred crops directly in their fields. We are extremely excited as this brings us one step closer to delivering wheat varieties with traits which will help us towards regenerative agriculture, a greener farming system and enhanced nutrition and quality.”

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