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. 2019 Feb 22;10:310. doi: 10.3389/fmicb.2019.00310

FIGURE 3.

FIGURE 3

Neighbor-joining molecular phylogenetic analysis of cowpea nodulating rhizobia from ▲Ghana, □ Senegal, ■ Mozambique,◇ Namibia△ and South Africa based on nifH (401 bp) sequences with type strains of Bradyrhizobium species. The evolutionary history was inferred by using the Neighbor-joining method based on the Kimura 2-parameter model. The scale bar indicates the number of substitutions per site. The percentage of trees in which the associated taxa clustered together in the bootstrap test (1000 replicates) are shown next to the branches. Evolutionary analyses were conducted in MEGA6.