Gene-editing Tools Will Alter Foods Precisely And Cheaply

The next generation of biotech food is headed for the grocery aisles, and first up may be salad dressings or granola bars made with soybean oil genetically tweaked to be good for your heart. By early next year, the first foods from plants or animals that had their DNAedited” are expected to begin selling. It’s a different technology than today’s controversial “genetically modifiedfoods, more like faster breeding that promises to boost nutrition, spur crop growth, and make farm animals hardier and fruits and vegetables last longer.

The U.S. National Academy of Sciences has declared gene editing one of the breakthroughs needed to improve food production so the world can feed billions more people amid a changing climate. Yet governments are wrestling with how to regulate this powerful new tool. And after years of confusion and rancor, will shoppers accept gene-edited foods or view them as GMOs in disguise?

GMOs, or genetically modified organisms, are plants or animals that were mixed with another species’ DNA to introduce a specific trait — meaning they’re “transgenic.” Best known are corn and soybeans mixed with bacterial genes for built-in resistance to pests or weed killers.

If the consumer sees the benefit, I think they’ll embrace the products and worry less about the technology,” said Dan Voytas, a University of Minnesota professor and chief science officer for Calyxt Inc., which edited soybeans to make the oil heart-healthy.

Researchers are pursuing more ambitious changes: Wheat with triple the usual fiber, or that’s low in gluten. Mushrooms that don’t brown, and better-producing tomatoes. Drought-tolerant corn, and rice that no longer absorbs soil pollution as it grows. Dairy cows that don’t need to undergo painful de-horning, and pigs immune to a dangerous virus that can sweep through herds.

Scientists even hope gene editing eventually could save species from being wiped out by devastating diseases like citrus greening, a so far unstoppable infection that’s destroying Florida’s famed oranges. First they must find genes that could make a new generation of trees immune.

If we can go in and edit the gene, change the DNA sequence ever so slightly by one or two letters, potentially we’d have a way to defeat this disease,” said Fred Gmitter, a geneticist at the University of Florida Citrus Research and Education Center, as he examined diseased trees in a grove near Fort Meade.

Source: https://whyy.org/

Leave a Reply

Your email address will not be published. Required fields are marked *