TABLE 3 .

β-Diversity^a

DNA reaction concn (ng/μl)	Bray-Curtis distance		Unweighted UniFrac distance		Weighted UniFrac distance
	R2	P value	R2	P value	R2	P value
2 × 10−1	0.057	0.55	0.067	0.35	0.105	0.12
4 × 10−2	0.070	0.20	0.078	0.03	0.099	0.17
8 × 10−3	0.061	0.48	0.131	<0.001	0.275	<0.001
1.6 × 10−3	0.131	0.14	0.293	<0.001	0.402	<0.001
3.2 × 10−4	0.354	0.004	0.442	<0.001	0.251	<0.001
6.4 × 10−5	0.494	<0.001	0.473	<0.001	0.219	<0.001
1.28 × 10−5	0.442	<0.001	0.631	<0.001	0.486	<0.001

^aComparisons of each dilution with 1 ng/μl gDNA were based on permutational multivariate analysis of variance. Abbreviation: gDNA, genomic DNA.