Molecular evolution of a central region containing B cell epitopes in the gene encoding the p67 sporozoite antigen within a field population of Theileria parva.

However, despite the demonstration of evolutionary patterns consistent with the effects of positive selection, none of the amino acid sites in gap-free alignment columns in the p67 gene identified by maximum likelihood analysis had a highly significant (>95 %) posterior probability of being positively selected (Table 4 ).

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