Table 2.

Operational taxonomic unit (OTU) richness and diversity indices of different samples associated with examined legume nodules with a 97% similarity cutoff.

Species	OTUs	Coverage (%)	Chao1 Richness	Shannon Diversity	PD Whole Tree
G. max	217 ± 35 ab	87.6 ± 2.1 b	284 ± 41 a	5.78 ± 0.55 a	4.17 ± 0.77 a
G. soja	191 ± 13 a	90.2 ± 1.5 b	228 ± 30 a	5.88 ± 0.34 a	3.33 ± 0.62 ab
S. cannabina	154 ± 3 b	96.1 ± 0.2 a	112± 5 b	5.28 ± 0.04 a	1.82 ± 0.04 b

Values are the means of three replicates ± SD. Values within the same column followed by different lowercase letters are significantly different (p < 0.05).