<i>Rhagoletis pomonella</i> Genomic Shift (IMAGE)

Rice University

<i>Rhagoletis pomonella</i> Genomic Shift

Caption

This graph depicts the genome-wide genetic differences that have evolved between a native host race of Rhagoletis pomonella that lays its eggs on hawthorn trees (red) and a new divergent host race (green) that began reproducing on apples trees in the 1850s. In laboratory experiments, researchers found that raising native haw flies on the apple trees' fruiting cycle for just one generation led to a genome-wide shift (dashed red line) that accounted for up to 70 percent of the genetic differences between the two races.

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S. Egan/Rice University

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