How to prevent GM corn from ‘contaminating’ (cross pollinating) non GMO fields

Cross-pollination from genetically modified crops is a major concern to farmers who use conventional methods to grow crops–especially corn, which spreads its pollen via wind. Chinese researchers have developed a way to selectively eliminate GM glysophate-resistant corn from non-GM fields.

The researchers genetically modified corn to be glysophate resistant but sensitive to a different herbicide, nicosulfuron, which was developed by DuPont Pioneer. Nicosulfuron has been successfully used for weed control in corn fields because it kills a “wide range of annual and perennial grasses and broadleaf weeds” but not corn. Scientists silenced the gene that allows corn to be resistant to nicosulfuron and inserted a gene that made it resistant to glysophate, the active ingredient in Monsanto’s Round Up herbicide.

In field tests, the researchers found that the GM corn was still resistant to Round Up but could be killed with nicosulfuron. This kind of genetic modification would allow simple elimination of Round Up Ready corn from non-GM fields, the researchers write, and could be applied to other types of GM crops.

Read the full, original paper: A Built-In Strategy to Mitigate Transgene Spreading from Genetically Modified Corn

Outbreak Daily Digest
Biotech Facts & Fallacies
Talking Biotech
Genetics Unzipped
Video: Test everyone – Slovakia goes its own way to control COVID

Video: Test everyone – Slovakia goes its own way to control COVID

As Europe sees record coronavirus cases and deaths, Slovakia is testing its entire adult population. WSJ's Drew Hinshaw explains how ...
mag insects image superjumbo v

Disaster interrupted: Which farming system better preserves insect populations: Organic or conventional?

A three-year run of fragmentary Armageddon-like studies had primed the journalism pumps and settled the media framing about the future ...
dead bee desolate city

Are we facing an ‘Insect Apocalypse’ caused by ‘intensive, industrial’ farming and agricultural chemicals? The media say yes; Science says ‘no’

The media call it the “Insect Apocalypse”. In the past three years, the phrase has become an accepted truth of ...
globalmethanebudget globalcarbonproject cropped x

Infographic: Cows cause climate change? Agriculture scientist says ‘belching bovines’ get too much blame

A recent interview by Caroline Stocks, a UK journalist who writes about food, agriculture and the environment, of air quality ...
organic hillside sweet corn x

Organic v conventional using GMOs: Which is the more sustainable farming?

Many consumers spend more for organic food to avoid genetically modified products in part because they believe that “industrial agriculture” ...
benjamin franklin x

Are most GMO safety studies funded by industry?

The assertion that biotech companies do the research and the government just signs off on it is false ...

Environmental Working Group: EWG challenges safety of GMOs, food pesticide residues

Known by some as the "Environmental Worrying Group," EWG lobbies for tighter GMO legislation and famously puts out annual "dirty dozen" list of fruits and ...
m hansen

Michael Hansen: Architect of Consumers Union ongoing anti-GMO campaign

Michael K. Hansen (born 1956) is thought by critics to be the prime mover behind the ongoing campaign against agricultural biotechnology at Consumer Reports. He is an ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
Optional. Mail on special occasions.
Send this to a friend