U.S. researchers discover new gene involved in toxic competition among yeast

LOS ANGELES, Feb. 21 (Xinhua) -- U.S. researchers have identified a new gene that makes yeast resistant to a lethal toxin, according to a new study published recently in the Proceedings of the National Academy of Sciences.

To study the evolution of toxin resistance, researchers at the U.S. National Human Genome Research Institute used yeast, the kind commonly used for home baking, as a model organism.