Fig. 4

Grape rootstock shared microbiome and correlation with cultivable bacteria. a, b Venn diagrams showing the common and exclusive bacterial OTUs of the roots and compartments the selected rootstock. c Overlaps between the shared rhizosphere and root OTUs of all selected rootstocks. d Phylogenetic tree and distribution of the six most abundant (≥ 1%) shared OTUs among the root systems (root tissue and rhizosphere) of all selected rootstocks. e Phylogenetic tree of representative bacterial isolates having more than 97% similarity with the two most abundant shared OTUs, individuated by high-throughput sequencing data analyses. The identification and functional PGP traits of the selected isolates are shown