Table 7. Taxonomic distribution of cDNA contigs with homology to 16S ribosomal sequence, by bacterial order.

Class	Order	Number of 16S contigs	Log2 difference in read counts (CCD+/CCD−)
Actinobacteria	Bifidobacteriales	3	−0.82
Alphaproteobacteria	Rhizobiales	7	−1.47
Alphaproteobacteria	Rhodospirillales	6	−0.90
Bacilli (Firmicutes)	Clostridiales	5	+0.19
Bacilli (Firmicutes)	Lactobacillales	24	+0.29
Betaproteobacteria	Burkholderiales	1	N/A (3 reads in CCD−, 2 reads in CCD+)
Betaproteobacteria	Neisseriales	3	+0.32
Gammaproteobacteria	Enterobacteriales	13	+0.42
Gammaproteobacteria	Pseudomonadales	5	N/A (64 reads in CCD−, 1 read in CCD+)

Taxonomy was estimated by the RDP Classifier tool for all 303 contigs with bacterial best BLAST matches. Only the 67 contigs with a minimum 80% bootstrap support at the order level are included here. N/A = not applicable, due to a low number of mapped reads.