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Numbers below nodes show bootstrap support values from 1,000 replicates. Nodes that received ≤60% bootstrap support were collapsed. ML Phylogram was generated from amino-acid alignments of Kunitz-type homologs using WAG+I+G model. Abbreviations: An asterix (*) indicates non-toxin sequences, Bpl = Buddenbrockia plumatellae Ccr = Calvadosia cruxmelitensis; Myx = Myxosporea; Phy = Polypodium hydriforme.
