Technical Comments

Response to Comment on "Evolutionary Paths Underlying Flower Color Variation in Antirrhinum"

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Science  26 Jan 2007:
Vol. 315, Issue 5811, pp. 461
DOI: 10.1126/science.1136394

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Rausher's assertion that divergent selection across a hybrid zone is incompatible with adaptive ridges, although intuitively reasonable, is incorrect on several fronts. His alternative hypothesis of a single moveable peak predicts a sharp environmental transition across the hybrid zone that is not supported by observations. Thus, a high fitness path still provides the most straightforward explanation of our data.

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