Genetic structure of four socio-culturally diversified caste populations of southwest India and their affinity with related Indian and global groups

Table 3 Genetic differentiation of Indian populations based on AMOVA

(a) Geographical grouping
Groups in set 1	Source of Variation	Percentage Variation
Group 1 – North: Bihar and Orissa populations	Among groups	0.29
Group 2 – South-west: Karnataka populations	Among populations in groups	0.97
Group 3 – South-east: Tamil Nadu Populations	Within populations	98.74
(b) Linguistic grouping
Groups in set 2	Source of Variation	Percentage Variation
Group 1 – Indo-European: Orissa and Bihar	Among groups	0.69
Group 2 – Dravidian: Southern populations	Among populations in groups	0.94
	Within populations	98.40

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