TABLE 3.

Similarity matrix for phylotype composition for clone libraries and culture collections

Clone library or culture collection	% Similaritya
	iS0	iS1	iC0	iC1	S0	S1	C0
iS1	23
iC0	25	31
iC1	15	31	31
S0	1	4	4	4
S1	0	1	0	1	11
C0	0	0	0	0	13	15
C1	1	3	1	2	16	16	22

^aPairwise similarity values were calculated as follows: [(2 × common types)/(total types)] × 100. Boldface percentages are values referred to in the text.