Fig. 4

The core microbiome of wild pigeonpea nodules at the (A) phylum and (B) genus levels. The Y-axis represents the prevalence level of core bacterial taxa across the detection threshold (relative abundance) range on the X-axis. The variation in the prevalence of each phylum/genus is indicated by a color gradient from blue (increased) to yellow (decreased). The ‘Not_assigned/Uncultured_’ taxa label in the figure represents unclassified bacterial taxa