TABLE 2.

Summary of probes in GeoChip 5.0M within broad microbial groups^e

Major microbial group	No. of:							% of probe changes compared to GeoChip 4
	Phyla	Genera	Species	Strains	Genes	Probes	Covered CDS
Bacteria	33	1,122	2,721	6,465	1,003	141,153	333,675	+93
Archaea	6	101	188	282	269	5,728	38,978	+124
Fungi	7	297	404	625	226	8,856	21,101	+130
Protists	10	219	251	362	201	2,051	5,376
Other eukaryotesa	7	64	66	86	62	509	1,170
Viruses	1	167	311	1,364	116	2,848	6,028	+166
Unclassifiedd					125	816	2,561	+116
Total	64	1,970	3,941	9,184	1,447b	161,961	365,651c	+97

^aOther eukaryotes include Metazoa and Viridiplantae.

^bTotal number of genes does not equal the sum of those from individual taxonomic groups due to the presence of the genes shared across two or more taxonomic groups.

^cTotal number of covered CDS does not equal the sum of those from individual taxonomic groups due to the presence of the CDS covered in two or more taxonomic groups.

^dThe sequences are unclassified due to missing annotations in the data source; most of these are metagenomics sequencing contigs.

^eDetailed information on the phylogenetic distribution of functional genes is in Table S2.