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Evolution: Selfing Takes Species Down Stebbins’s Blind Alley
Jeremiah W. Busch, Lynda F. Delph Current Biology Volume 27, Issue 2, Pages R61-R63 (January 2017) DOI: /j.cub Copyright © 2017 Elsevier Ltd Terms and Conditions
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Figure 1 The flower of a primarily self-fertilizing plant species, Mimulus laciniatus. The evolution of selfing commonly occurs, yet its influence on adaptive potential has been difficult to test empirically. Photo: D. Grossenbacher. Current Biology , R61-R63DOI: ( /j.cub ) Copyright © 2017 Elsevier Ltd Terms and Conditions
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Figure 2 Comparing the adaptive potential of outcrossing and selfing populations. These lines describe the cumulative amount of adaptive trait evolution over a time span of four generations. For a given amount of selection in a generation, the evolutionary response is predicted by the realized heritability (h2realized), or the slope of the line. In this example, historical selfing slows the rate of adaptation. Current Biology , R61-R63DOI: ( /j.cub ) Copyright © 2017 Elsevier Ltd Terms and Conditions
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