TABLE 4.

Effect of sequence length on taxonomic placement and distance based on ARB alignment

Taxona	Full-length		Truncated
	% Sequence similarity	No. of sequences	% Sequence similarity	No. of sequences
Phylum
Acidobacteria	58	176	46	175
Bacteroidetes	52	106	46	107
CD OD1	57	20	46	20
Gemmatimonadetes	75	42	51	41
Planctomycetes	46	88	39	88
Class
Betaproteobacteria	61	141	54	144

^aCD, candidate division.