FIG 4.

Comparisons of differentially abundant OTUs. Differentially abundant OTUs (DAOTUs) were evaluated across tomato rootstocks for the endosphere and rhizosphere, with OTU counts from self-grafts and nongrafts (BHN589) as controls. All of the tests were adjusted to control for the false-discovery rate (FDR) (P value < 0.05) using the Benjamini-Hochberg method. Each point represents an OTU labeled at the genus level and colored based on the associated phylum. The position along the x axis represents the frequency fold change contrasted with that of the two controls (self-graft and nongraft [BHN589]) for the two hybrid rootstocks (Maxifort and RST-04-106) and a self-graft versus nongraft (BHN589) contrast.