Mean shoot dry weight response to Bradyrhizobium genotypes isolated from conspecific versus allospecific hosts. Response = fold increase over uninoculated control plants. Closed circles indicate growth of A. strigosus test plants; open circles indicate growth of L. bicolor test plants. Error bars represent ± 1 standard error.
Ehinger et al. BMC Ecology 2014 14:8 doi:10.1186/1472-6785-14-8