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Where did the northern peatland species survive the dry glacials: cloudberry (Rubus chamaemorus) as an example

Aim  During the last ice age large parts of the north boreal and subarctic zones were covered by ice, while the climate in ice‐free regions of northern Asia was extremely cold and dry. The extensive peatlands of these zones with their characteristic vegetation developed at the beginning of the Holocene. We combine a phylogeographical approach with maps of pollen records to identify regions where Rubus chamaemorus, a plant of moist, peaty soils, was likely to grow during this period.