Table 3.

Results of SAMOVA. The most likely groupings of populations are presented assuming the presence of 2, 3, or 4 groups

Number of K groups	Structure tested	Variance among groups %	F CT	p value
2	Group 1 (Kat)	0.10180	0.05539	>0.05
	Group 2 (Anu, Mon, Tha, Kan, Nik)
3	Group 1 (Anu, Kan, Nik)	0.09424	0.05252	>0.05
	Group 2 (Kat)
	Group 3 (Mon, Tha)
4	Group 1 (Kan)	0.09455	0.05302	>0.05
	Group 2 (Kat)
	Group 3 (Mon, Tha)
	Group 4 (Anu, Nik)

Anu-Anuradhapura, Mon-Monaragala, Tha-Thanamalwila, Kan-Kandy, Kat-Kataragama, Nik-Nikaweratiya