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Researchers at CU are teasing out the modern-day sunflower's genetic history.

Humans and sunflowers go way back.

American Indians first domesticated the plant — prized for its seeds, oil and beauty — around 3,000 B.C.Ìý

Over the next 5,000 years, the common sunflower, Helianthus annuus, evolved dramatically and rapidly, resulting in the chee