TABLE 4.

AMOVA of the SNP dataset from S. miscanthi

	Source of variation	Sum of squares	Variance components	% variation	Fixation indices
A	Among groups	146,960.625	840.81437	40.68	F CT = 0.4068 (p = 0)
	Among populations within groups	23,445.277	83.52677	4.04	F SC = 0.0681 (p = 0)
	Among individuals within populations	90,706.443	−22.79868	−1.10	F IS = −0.0199 (p = .6556)
	Within individuals	116,543.000	1,165.43000	56.38	F IT = 0.4362 (p = 0)
B	Among groups	17,982.662	43.99279	2.22	F CT = 0.0222 (p = .2569)
	Among populations within groups	110,074.833	614.04835	31.01	F SC = 0.3172 (p = 0)
	Among individuals within populations	133,054.850	156.47861	7.90	F IS = −0.1184 (p = 0)
	Within individuals	116,543.000	1,165.43000	58.86	F IT = 0.4114 (p = 0)

Analyses were performed to test the following hierarchical substructure: (A) individuals grouped according to the genetic cluster assignment from Structure; (B) populations grouped according to their north–south location with respect to the Qinling–Huaihe line divide.