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Surnames and ancestry in Brazil

Fig 2

Index of non-Iberian surnames by municipality.

Note: index = 1 for individuals with exclusively non-Iberian surnames; index = 0.5 for one Iberian and one non-Iberian surnames; index = 0 for exclusively Iberian surnames. Map shows the rate of the sum of the index by the number of individuals in each municipality.

Fig 2

doi: https://doi.org/10.1371/journal.pone.0176890.g002