Figure 2.

Population growth of natural Caenorhabditis elegans isolates. The population growth rate of the strains from Roxel (2002 and 2012) and Kiel (2012) and the wild-type strain N2 on (A) Escherichia coli, (B) Serratia sp., and (C) Serpens sp. was analyzed after 5 days and is shown as mean population growth per initial worm relative to the mean population growth of N2 on OP50 per initial worm (indicated as dashed line). The error bars indicate standard error of the mean. Genotype numbers below strain designations refer to those from Table S2.