Additional file 1.

The dependence between correlation coefficient computed for the four element subgroups and six element subgroups for pairs (A, P) and (PG). The data provided shows graphs of dependences between correlation coefficient computed for the four element subgroups and six element subgroups for pairs (A, P) and (PG)

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Przytycka et al. BMC Evolutionary Biology 2008 8:208   doi:10.1186/1471-2148-8-208