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How Venus flytraps evolved their taste for meat

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www.sciencemag.org

The Venus flytrap rewired existing genes to allow it to eat meat. By Elizabeth PennisiHow does a plant develop a taste for flesh?

In the play Little Shop of Horrors, all it takes is a drop of human blood. But in real life, it takes much more. Now, a study of three closely related carnivorous plants suggests dextrous genetic shuffling helped them evolve the ability to catch and digest protein-rich meals.Carnivorous plants have developed many devious ways to snare prey.

Pitcher plants, for example, use “pitfall traps” that contain enzymes for digesting stray insects. Others—including the closely related Venus flytrap (Dionaea muscipula), the aquatic waterwheel plant (Aldrovanda vesiculosa), and the sundew (Drosera spatulata)—use moving traps.

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