Fig. 2

An admixture plot showing the ancestry components of South Asian populations. Five SAS populations (STU, ITU, GIH, PJL and BEB) from 1000 Genomes Project [33], and previously published Indian [31] and Pakistani populations [34, 35] were evaluated. Percent ancestry is plotted on the Y axis. The ancestral components in evaluated genomes was estimated using ADMIXTURE v1.3. A model with eight ancestral components (K = 8) was the most parsimonious to explain the variation and similarities of the genome-wide genotype data. Each individual is represented by a vertical line partitioned into colored segments whose lengths are proportional to the contributions of the ancestral components to the genome of the individual. Population labels were added after each individual’s ancestry had been estimated. To note k1, k2, k3, k4, k5, k6, k7, and k8 represent putative ancestral West Eurasian, North Indian, East Asian, South Indian, Telugu, Andamanese, Kalash, and Siddi components respectively