In the original article, there was a mistake in Figure 2 as published. The originally published figure had a panel out of order. The corrected Figure 2 appears below.
Figure 2.
Site frequency spectrum of SNPs identified in the 4-parent population initially, after six outcrossing events, after 12 outcrossing events, and after 12 outcrossing events + a heat shock of 55°C for 20 min. Color in included in the histograms to emphasize the bins with high counts (red) compared to those with low counts (green); notice the reduction in sites with frequency = 0 or 1 between cycle 12 and cycle 12 + heat shock.
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.