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Scientists identify viral gene driving sick gypsy moth caterpillars to climb ...

Scientists identify viral genes lead moth caterpillars sick of climbing up and die

COLUMBUS, Ohio, September 8, 2011 - For a century, scientists have observed European gypsy moth caterpillars infected with a virus using their remaining strength to do something that a gypsy moth caterpillar sound would never do in broad daylight - up high in a tree and a leaf. This behavior of infected caterpillars was so consistent that it inspired the term "Wipfelkrankheit" or "disease of the trees," to describe the virus that caused it. For scientists, the question was how a virus change in behavior of its host?

A team of researchers that included a U.S. Forest Service scientist has answered this question. An article in Science, a journal of the American Association for the Advancement of Science, published on September 9 has identified a gene that drives specific viral infected caterpillars die in a way that offers the greatest potential for spread of the virus who killed him. The article is available at: www.sciencemag.

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