WASHINGTON (Reuters) – A mutation in a single gene can turn hybrid tomato plants into super producers capable of generating more and much sweeter fruit without genetic engineering, scientists said in a study released on Sunday.

The study also showed that using classic plant-breeding techniques can boost yield as dramatically as using genetically modified organisms, said researcher Zachary Lippman of Cold Spring Harbor Laboratory in New York.

Read more: Single gene powers hybrid tomato plants: study

WASHINGTON (Reuters) – Can’t lose weight on a low-fat diet? Maybe you need to cut carbs instead, and a new genetic test may point the way, maker Interleukin Genetics Inc reported on Wednesday.

The small study of about 140 overweight or obese women showed that those on diets “appropriate” for their genetic makeup lost more weight than those on less appropriate diets, researchers told an American Heart Association meeting.

Read more: Your best diet? It might be in your genes