What biological agent was responsible for the highly prized, striped color patterns on historic Dutch tulips?
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The striking, flame-like stripes on famous historical tulips like the Semper Augustus were caused by the Tulip Breaking Virus. This virus, spread by aphids, actually weakened the bulb over time, making these beautiful varieties extremely rare and difficult to keep alive. Photo: ThorbenL at Danish Wikipedia, Wikimedia Commons, Public domain.
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Source: Wikipedia (CC BY-SA)
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