3. Results and discussion
3.1. Genetic diversity and MAFs
95 cod individuals from 3 Baltic locations were genotyped using a
10K SNP-array.
All analysed loci had two alleles each.
The allele frequencies,
calculated with a molecular indices parameter implemented in
Arlequin software, enabled the classes of minor allele frequency
(MAF) to be identified.
The mean minor allele frequency amongst polymorphic
SNPs was 0.258.
Particular classes of MAFs are presented in
Fig. 2. A threshold of 0.01 is usually regarded as the minimum acceptable
level of polymorphism for population genetic studies (Sladek
et al., 2007; Chan et al., 2008) and it was applied in this study