Fig. 1

Venn diagrams of bacterial operational taxonomic units (OTUs) in samples of a pseudostems and roots of explants (designated as Sstem and Sroot, respectively) and shoot tips and roots of healthy banana plants in fields without wilting symptoms (Btip and Broot); b Btip, shoot tips of banana plants adjacent to the wilting plants but without wilting symptoms (Htip), Sroot, and Sstem; c shoot tips and roots of banana plants adjacent to the wilting plants but without wilting symptoms (Htip and Hroot), and shoot tips and roots of wilting banana plants (Wtip and Wroot). The Venn diagrams show the number of shared and unique OTUs in the samples. The different colored ovals represent different samples, and the intersections of the colored ovals indicate the coexisted bacterial OTUs in the samples