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. Author manuscript; available in PMC: 2019 May 15.
Published in final edited form as: Nat Ecol Evol. 2018 Jun 25;2(7):1128–1138. doi: 10.1038/s41559-018-0581-8

Fig. 2. Comparison of the extent of phenotypic and genomic evolution in the 19 years selection experiment with the ~12,000 years old adaptive radiation.

Fig. 2

Phenotypic divergence and adaptive genomic differentiation arose rapidly in the selection experiment, comparable in extent to postglacial divergence between large lake and pond or stream ecotypes. a Population means and distributions for six phenotypic traits in Mayer Lake (source population), Roadside Pond (transplant population, orange), postglacial stream (green) and pond (blue) ecotype populations41. b Absolute divergence (DXY), c relative differentiation (FST) and d adaptive differentiation (FST) between postglacial large lake and stream (green) or pond (blue) ecotype populations as well as in the selection experiment (orange). FST estimates for lake-stream and large lake vs. small pond comparisons are based on SNP chip data from a previous study46. Adaptive differentiation SNPs are outlier SNPs in this previous study46 and top 5% FST SNPs in each outlier window for the selection experiment. Numbers are mean percentages of phenotypic or genomic change in the selection experiment compared to postglacial lake vs. stream divergence (upper) and large lake vs. small pond divergence (lower number).