Table 1.

(A) Genetic and epigenetic AMOVA for 21 populations of C. ambrosioides analysed. (B) Three-level hierarchical analysis of epigenetic and genetic molecular variation (AMOVA) for C. ambrosioides, and the groups divided based on the best genetic cluster of populations in STRUCTURE

Source of variation	d.f.	Variance components	Percentage of variation	F-statistics
(A) AMOVA
Genetic variation
Among populations	20	1.43	44.31	F  ST = 0.443
Within populations	713	1.80	55.69
Epigenetic variation
Among populations	20	47.72	16.67	F  ST = 0.167
Within populations	346	238.52	83.33
(B) Hierarchical AMOVA
Genetic variation
Between group 1 and group 2	1	2.37	50.14	F  CT = 0.501
Among populations within group	19	0.56	11.83	F  SC = 0.237
Within populations	713	1.80	38.04	F  ST = 0.620
Epigenetic variation
Between group 1 and group 2	1	38.31	12.34	F  CT = 0.123
Among populations within group	19	33.63	10.83	F  SC = 0.124
Within populations	346	238.52	76.83	F  ST = 0.232