4.3 Comparison to other lakes
The comparison with eight other lakes showed that Deme II in
Bunnersjöarna stands out as less genetically variable, more inbred, and
more isolated than any other population. For the other populations,
nucleotide diversity was around 0.001 (Table 2; Table S12). This is in
line with what we have observed previously from brown trout of the same
geographic area using the Salmo salar reference genome for
mapping (Kurland et al., 2019). Our
estimate is considerably lower than that observed using dd-RADseq for
brown trout populations of the Atlantic lineage (same lineage as our
study system) held in a hatchery in south-western France withπ =0.004 and for wild Mediterranean lineage populations withπ =0.005 (Leitwein, Gagnaire,
Desmarais, Berrebi, & Guinand, 2018). Again, Deme II stands out as an
extreme in comparison with other brown trout populations with genome
wide nucleotide diversity of below 0.0005 (Table 2).