Table 3. Analysis of molecular variance (AMOVA) for mtDNA and cpDNA in Pinus yunnanensis.

	Source of variation	d.f.	SS	Variancecomponents	Percentageof variation	F-statistics
mtDNA
	Among 16 populations	15	90.003	0.358	55.48**	F ST = 0.55**
	Within populations	239	68.750	0.288	44.52
	Total	254	158.753	0.646
	Among 7 SAMOVA groups	6	85.411	0.413	57.77**	F CT = 0.58**
	Among populations within groups	9	4.592	0.014	1.96**	F SC = 0.05**
	Within populations	239	68.750	0.288	40.27**	F ST = 0.60**
	Total	254	158.753	0.714
	Among 3 ecotypes	2	40.262	0.267	34.41**	F CT = 0.34**
	Among populations within ecotypes	13	49.741	0.222	28.58**	F SC = 0.44**
	Within populations	239	68.750	0.288	37.01**	F ST = 0.63**
	Total	254	158.753	0.777
cpDNA	Among 16 populations	15	19.913	0.045	6.94**	F ST = 0.07**
	within populations	239	144.950	0.606	93.06
	Total	254	164.863	0.652
	Among 3 ecotypes	2	5.265	0.025	3.72**	F CT = 0.04*
	Among populations within ecotypes	13	14.648	0.033	4.92**	F SC = 0.05**
	Within populations	239	144.950	0.606	91.36**	F ST = 0.09**
	Total	254	164.863	0.664

^* P<0.05;

^** P<0.01.