Fig. 3From: Plant transcriptome analysis reveals specific molecular interactions between alfalfa and its rhizobial symbionts below the species levelExperimental design of the plant transcriptomic analysis. A Neighbor-Joining tree is shown on the left for five alfalfa (Medicago sativa) cultivars Gannong No. 3 (G3), Gannong No. 9 (G9), Longzhong (L), Qingshui (Q), and WL168HQ (WL). Phylogenetic relatedness among the six rhizobial strains is shown on the right. All six rhizobial strains can form effective nodules on the related cultivars, and their effective one- or two-cultivar specificity type (E1 or E2) are indicated in parenthesisBack to article page