Fig. 3
From: Unprecedented bacterial community richness in soybean nodules vary with cultivar and water status
Phylogenetic tree showing the evolutionary diversity of the sequenced nifH genes. An overall view is given of a representative set of all nifH genes. Panel a shows the placement of some of the most abundant Bradyrhizobium-related nifH genes. Different shades of pink highlight the distinct subclades of each species/strains present in the study. b Genes closely related to Paenibacillus are also found in the nodules but in rare abundances. Black nodes on branches denote bootstrap confidence values above 60%. The colored strips outside the tree leaves show the nifH cluster assignment according to (Heller et. al) naming convention, where only subgroups 1E, 1J/K distinguished in group 1. Significantly changing OTUs in response to irrigation are highlighted with stars (FDR p value < 0.05)