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(A) Neighbor-joining tree of a random subset of Eurasian Coot MHC class II B exon 2 alleles plus a few homologous avian sequences download from the public domain (GenBank Acc, Nos. are provided in the figure). Bootstrap values based on 1000 replicates are given. (B) Phylogenetic network of 265 exon 2 alleles isolated from the Eurasian Coot. Tips represent different alleles.
