Table 4.

Analysis of molecular variance (AMOVA) for the Petunia integrifolia ssp . depauperata estimated using two hierarchical models: two-level model includes only populations and three-level model includes all populations distributed in the three haplogroups observed

Model	Source of variation	d.f.	Sum of squares	Variance components	Variation (%)	Statistics
Two levels	Among populations	29	152.9	0.516	65.6
	Within populations	261	70.7	0.270	34.4
	Total	290	223.6	0.787		Φ ST = 0.656*
Three levels	Among groups	2	122.5	0.645	64.2	Φ CT = 0.642*
	Among populations within groups	27	30.4	0.088	8.8	Φ SC = 0.246*
	Among populations	261	70.7	0.270	27	Φ ST = 0.730*
	Total	290	223.6	1.004

The significance of each Φ statistic was tested through 1000 permutations at the appropriate hierarchical level. *P < 0.0001.