Cumulative pairwise differences between microsatellite haplotypes within each caste. The caste samples are indicated by the same colours as in Figure 1: from Jaunpur, Brahmins (J-B), Kshatriyas (J-K), Vaishyas (J-V), Sudras (J-S) and Panchamas (J-P); from the rest of India, Brahmins (I-B), Kshatriyas(I-K), Vaishyas (I-V), Sudras (I-S) and Panchamas (I-P).