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Neighbor-joining tree depicting genetic affinities among categories of populations cross-classified by social rank [(UC) upper caste, (MC) middle caste, (LC) lower caste, (TR) tribal] and linguistic group [(AA) Austro-Asiatic, (DR) Dravidian, (TB) Tibeto-Burman, (IE) Indo-European] based on (A) mitochondrial RSP haplotype frequencies, (B) Y-haplogroup frequencies, (C) Y-STRP frequencies, and (D) autosomal markers.
