TABLE 1.

Bacterial core seedling microbiome.

	RE	RS	SE	SS
Actinobacteria		Microbacterium	Amycolatopsis	Amycolatopsis
		(−, 1, 1, 1)	(−, −, 1, 1)	(−, −, 1, 1)
		Microbacteriaceae	Microbacterium	Microbacterium
		(−, 1, 1, 1)	(−, 1, 1, 1)	(−, 1, 1, 1)
		Curtobacterium	Microbacteriaceae	Microbacteriaceae
		(−, 1, −, −)	(−, 1, 1, 1)	(−, 1, 1, 1)
		Kineococcus		Curtobacterium
		(−, 1, −, −)		(−, −, −, 1)
		Quadrisphaera
		(−, 1, −, −)
Proteobacteria	Allorhizobium	Allorhizobium	Allorhizobium	Allorhizobium
Alphaproteobacteria	(2, 2, 1, 1)	(2, 2, 1, 1)	(1, 1, 1, 1)	(1, 1, 1, 1)
	Sphingomonas	Sphingomonas	Sphingomonas	Sphingomonas
	(4, 2, 1, 1)	(2, 7, 2, 2)	(1, 2, 2, 2)	(1, 2, 2, 2)
	Methylobacterium	Aureimonas	Aureimonas	Aureimonas
	(4, 2, 1, 1)	(−, 2, 1, 1)	(−, 1, 1, 1)	(−, 1, 1, 1)
	Novosphingobium	Rhizobiaceae	Rhizobiaceae	Rhizobiaceae
	(1, 1, −, −)	(−, 1, 1, 1)	(−, 1, 1, 1)	(−, 1, 1, 1)
	Aureimonas	Methylobacterium	Methylobacterium	Methylobacterium
	(1, −, −, −)	(2, 3, 1, 1)	(1, 1, 1, 1)	(2, 1, 1, 2)
		Novosphingobium
		(1, 1, −, −)
		Roseomonas
		(−, 2, −, −)
		Belnapia
		(−, 1, −, −)
Proteobacteria	Pantoea	Pantoea	Pantoea	Pantoea
Gammaproteobacteria	(2, 2, 1, 1)	(2, 6, 1, 1)	(1, 1, 1, 1)	(1, 1, 1, 1)
	Xanthomonas	Luteibacter	Xanthomonas	Xanthomonas
	(1, 1, 1, 1)	(−, 1, −, −)	(1, 1, 1, 1)	(1, 1, 1, 1)
	Herbaspirillum	Pseudomonas	Cupriavidus	Pseudomonas
	(1, −, −, −)	(−, 3, −, 2)	(−, −, 1, −)	(−, 2, −, 2)
		Massilia
		(−, 1, −, −)
		Xanthomonas
		(1, 1, 1, 1)
Bacteroidetes	Mucilaginibacter	Chryseobacterium		Chryseobacterium
	(3, 2, −, 1)	(−, 1, −, −)		(−, −, −, 1)
		Mucilaginibacter		Mucilaginibacter
		(2, 3, −, 1)		(1, 1, −, 1)
Firmicutes	Paenibacillus	Paenibacillus		Paenibacillus
	(1, 1, −, 1)	(1, 3, −, 1)		(1, 1, −, 1)

The bacterial ASVs and their representative taxa shared between all samples of a seedling compartment. The numbers in parentheses represent the number of ASVs belonging to the bacterial taxa that are shared with other compartments in order according to the header. The bold number represents the number of ASVs belonging to the compartment of interest (RE, Root Endosphere; RS, Root Surface; SE, Shoot Endosphere; SS, Shoot Surface).