Table 3. Identity of the bacterial OTUs that appeared in >95% of either the 115 plant root systems of B. vivipara or the 63 soil samples and their taxonomical affiliation.

OTU ID	Sample type	Phyla	Class	Order	Family
4908	Soil	Acidobacteria	iii1-8	DS-18	Unknown
4186	Plant roots	AD3	JG37-AG-4	Unknown	Unknown
6129	Plant roots	Armatimonadetes	Armatimonadia	Armatimonadales	Armatimonadaceae
1669	Plant roots	Chloroflexi	Ktedonobacteria	Thermogemmatisporales	Thermogemmatisporaceae