Table 4.

Analysis of molecular variance (AMOVA) for AFLP variation within and between Abies chensiensis and Abies fargesii when individuals were grouped according to population type, that is, allopatric or parapatric.

Species/Regions	Source of variation	df	SS	Est. variance	% Variance	Value	P value
A. chensiensis	Among population type (allopatric vs. parapatric)	1	119.91	3.08	25	ΦRT = 0.246	0.001
	Among populations within population type	7	98.44	0.75	6	ΦPR = 0.079	0.001
	Within populations	59	514.35	8.72	69	ΦPT = 0.305	0.001
	Total	67	732.71	12.55
A. fargesii	Among population type (allopatric vs. parapatric)	1	428.02	8.52	48	ΦRT = 0.478	0.001
	Among populations within population type	12	168.84	0.79	4	ΦPR = 0.085	0.001
	Within populations	90	766.26	8.51	48	ΦPT = 0.523	0.001
	Total	103	1363.13	17.83
Allopatric populations	Among species	1	37.27	0.5	5	ΦRT = 0.053	0.001
	Among populations within species	13	163.11	0.63	7	ΦPR = 0.070	0.001
	Within populations	87	730.46	8.39	88	ΦPT = 0.119	0.001
	Total	101	930.83	9.53
Parapatric populations	Among species	1	399.26	10.93	52	ΦRT = 0.524	0.001
	Among populations within species	6	104.18	1.04	5	ΦPR = 0.105	0.003
	Within populations	62	550.16	8.87	43	ΦPT = 0.574	0.001
	Total	69	1053.60	20.84

df, degree of freedom; SS, sum of squares.