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. 2015 Oct 15;5(21):4932–4948. doi: 10.1002/ece3.1656

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© 2015 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Sharing of MHC class II DRB exon 2 alleles among individuals within and between different biomes. Biomes are denoted by outer circle color: Atlantic forest (blue, n = 29), Amazon forest (green, n = 9), Cerrado (gray, n = 16), Caatinga (violet, n = 3), and Pantanal (red, n = 8). Each ribbon represents one DRB amino acid allele (N = 60). Each interruption in the outer circle represents a different individual (N = 65). Note that most private alleles (present in one biome only) where found in several individuals.