Geneticists help show bitter taste perception is not just about flavors

Long the bane of picky eaters everywhere, broccoli's taste is not just a matter of having a cultured palate; Some people can easily taste a bitter compound in the vegetable that others have difficulty detecting. Now a team researchers has helped uncover the evolutionary history of one of the genes responsible for this trait. Beyond showing the ancient origins of the gene, the researchers discovered something unexpected: Something other than taste must have driven its evolution.

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