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Markers grouping obtained in discrimination analyses. (A) Grouping was carried out regarding frequency of alternative codon usage. Symbols used: red squares-chromosome markers (ch), blue triangles-chromid-like replicons' markers (cd), green circles-'other plasmid' markers (including pSym markers) (p). (B) Strains grouping observed in discrimination analyses regarding frequency of alternative codon usage of the tested gene set.
