Table 1.

Number of clusters found when rhizosphere sequences obtained in this study and NCBI nt sequences were grouped at different levels, ranging from 75% to 97% sequence identity.

Gene	Grouping identity	Total clusters	Number of clusters
			Rhizosphere sequences	NCBI nt ref	Shared clusters
Firmicutes ACP	75%	145	81	64	2
	85%	331	174	157	0
	90%	430	230	200	0
	97%	839	509	330	0
Actinobacteria KS	75%	173	64	109	2
	85%	194	72	122	2
	90%	204	76	128	0
	97%	219	85	134	0
Actinobacteria met-mal-CoA	75%	189	78	111	0
	85%	215	91	124	0
	90%	224	96	128	0
	97%	237	103	134	0
Actinobacteria AD	75%	1494	1317	177	32
	85%	1718	1493	225	15
	90%	1822	1567	255	9
	97%	2034	1745	289	4