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Figure 2 | BMC Evolutionary Biology

Figure 2

From: Increased susceptibility to repeated freeze-thaw cycles in Escherichia coli following long-term evolution in a benign environment

Figure 2

Comparison of mortality rates between the evolved E. coli and their ancestor under the repeated freeze-thaw regime. The height of each bar shows the mean mortality rate per day for the evolved lines or their ancestor, measured over ten daily freeze-thaw cycles. For the evolved bacteria, the mean is calculated over all 12 lines, with three assays for each line. For the ancestor, the mean is calculated over two marked variants (Ara+ and Ara-), again with three assays for each one. See the Materials and Methods section for the mortality rate calculation. Error bars are 95% confidence intervals based on the number of lines (evolved) or total assays (ancestor).

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