Population genetics indices of the three main populations detected by STRUCTURE.

N, number of strains; P, proportion of polymorphic loci; MNA, mean number of alleles; Ho, observed heterozygosity; He, expected heterozygosity; Fis, inbreeding coefficient, Fisa all strains of the data set were included in the calculations, Fisb only one strain per genotype was included in the calculations; n.d., not done.
Predominating regions are marked by bold letters, normal letters are used for regions for which single strains are found in the respective population.