Genomic Evidence for Island Population Conversion Resolves Conflicting Theories of Polar Bear Evolution (original) (raw)
Figure 1
Map showing the approximate current geographic ranges of brown bears (brown) and polar bears (blue).
Numbers indicate the geographic location of origin of two brown bears and seven polar bears analyzed here. An American black bear from central Pennsylvania was also sequenced as part of this study. Shotgun data amounting to 4–6× coverage for polar bears and 11–12× coverage for brown and black bears (Table S2) was aligned to the current distribution of the polar bear genome [13].