FIG 5.

Great Salt Lake sample compositions map to those of the growth media that produce peak fitness. GSL samples (blue and yellow dots numbered with GSL sample numbers) are superimposed onto a three-dimensional landscape of H. salinarum NRC-1 fitness, where each colored bar represents the maximum growth rate in 1 of 75 growth media. Dots are located on the individual medium compositions that were best matched to GSL sample salinity by Manhattan distance (yellow) or nested pairwise comparison (blue). The colors in the three-dimensional bar plot indicate growth medium total salinity (purple, 100%; blue, 90%; green, 80%; orange, 70%; red, 60%), and media within a single total salinity (TS) level are numbered 1 to 15 from left to right. Bar height measures indicate the maximum growth rate (in hours⁻¹). See Fig. 2A for standard deviations around the mean. Samples with an “R” prefix in the sample number were rehydrated.