Yellow evolution: Unique genes led to new species of monkeyflower

Monkeyflowers glow in a rich assortment of colors, from yellow to pink to deep red-orange. But about 5 million years ago, some of them lost their yellow. Botanists now explain what happened genetically to jettison the yellow pigment, and the implications for the evolution of species.Monkeyflowers glow in a rich assortment of colors, from yellow to pink to deep red-orange. But about 5 million years ago, some of them lost their yellow. Botanists now explain what happened genetically to jettison the yellow pigment, and the implications for the evolution of species.

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