Fig. 1From: The HLA profile and genetic affinities of three primitive Tamil-speaking endogamous groups: Kallars of Thanjavur, Piramalai Kallar and VanniyarNeighbor-joining dendrogram showing relatedness between South Indian (Kallars of Thanjavur, Piramalai Kallar and Vanniyar) and other selected global populations. Genetic distances between populations (DA) were calculated using frequencies of HLA-DRB1 alleles. Frequency data for other ethnic populations were from AFNDBack to article page