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European corn borer: pheromone polymorphism or sibling species?

R T Cardé, W L Roelofs, R G Harrison

    Science (New York, N.Y.)
    |February 3, 1978
    PubMed
    Summary

    The European corn borer, Ostrinia nubilalis, exhibits distinct (Z) and (E) pheromone strains that do not freely interbreed. Genetic analysis reveals these strains are differentiated, potentially representing sibling species.

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