Population differentiation of the European pond turtle (Emys orbicularis) in Poland inferred by the analysis of mitochondrial and microsatellite DNA: implications for conservation
2013
Prusak, Beata | Mitrus, Sławomir | Najbar, Bartłomiej | Pacholewska, Alicja | Deas, Adrian | Skonieczna, Katarzyna | Górecki, Grzegorz | Grzybowski, Grzegorz | Hryniewicz, Adam | Wróblewski, Robert | Grzybowski, Tomasz
We investigated the genetic diversity of Polish populations of the European pond turtle (Emys orbicularis) using complete sequences of the mitochondrial cytochrome b gene and allelic variation at thirteen microsatellite loci. We collected data from 146 turtles from 28 locations covering most of the species’ range in Poland. Our results showed a low haplotype diversity and high levels of microsatellite diversity in all populations. We applied two Bayesian approaches using the multilocus data and determined relationships of mtDNA haplotypes by constructing a parsimony network. We observed relatively consistent results of the two Bayesian clustering methods and largely concordant differentiation patterns between mitochondrial and microsatellite markers. All eastern Polish populations were assigned in a highly supported eastern group, while the majority of turtles from western Poland were joined in a distinct western group. The most probable number of population clusters corresponded to the number of native mtDNA lineages. Additionally, we detected a hierarchical structure within the eastern lineage splitting the populations into two subgroups. Polish populations generally constitute genetically homogenous groups, characterized by a low population admixture, with only negligible impact from allochthonous turtles.
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