TABLE 1.

Statistical tests of associations among loci in the total population, the groups, and the subgroups^a

Population	No. of:		Length of most-parsimonious tree for:		IA (P)	rd (P)
	Isolates	Genotypes	Observed data (P)	Randomized data
Total	139	34	87 (0.01)	141	3.8 (<0.01)	0.15 (<0.01)
Total, clone corrected					2.4 (<0.01)	0.09 (<0.01)
Group I	58	23	36 (0.01)	50	0.84 (<0.01)	0.05 (<0.01)
Group I, clone corrected					0.3 (0.11)	0.02 (0.11)
Subgroup IA	44	17	26 (0.32)	27	0.4 (0.01)	0.3 (0.01)
Subgroup IA, clone corrected					−0.23 (0.92)	−0.18 (0.92)
Subgroup IB	14	6	8 (1)	8	2.4 (<0.01)	0.2 (<0.01)
Subgroup IB, clone corrected					0.15 (0.4)	0.02 (0.4)
Group II	79	9	13 (0.44)	14	0.37 (<0.01)	0.05 (<0.01)
Group II, clone corrected					0.12 (0.25)	0.013 (0.25)

^aResults for samples for which a null hypothesis of recombination cannot be rejected are shown in bold type.