Flowering Lettuce (IMAGE)

University of California - Davis

Flowering Lettuce

Caption

Kent Bradford, left, and Alfred Huo, seen here with a flowering lettuce plant, found that lettuce could be prevented from flowering by increasing the expression of a specific microRNA in the plants. The high levels of this microRNA prevent the plant from transitioning to adulthood and flowering, and the plant continues to make numerous baby leaves rather than forming a compact head of lettuce.

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(Gregory Urquiaga/UC Davis)

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