Springer Online Journal Archives 1860-2000
Summary Contrary to earlier reports, outcrosses to a number of natural populations ofDrosophila melanogaster have shown that low levels of male recombination can occur, often associated with chromosome breakage, mutator activity, sterility, and unique chromosome rearrangements. We have been able to induce low levels of male recombination and complex, genetic mosaics by feeding an inbred laboratory control strain with homogenates of a strain that shows male recombination and of a laboratory wild type strain. This supports other evidence that the factor inducing male recombination, and presumably the asociated chromosome breakage, may be an infective agent.
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