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Title: Genetic diversity of Salix lapponum populations in Central Europe
Authors: Urbaniak, Jacek
Kwiatkowski, Paweł
Pawlikowski, Paweł
Keywords: Europe; genetic variation; phylogeography; relict plant; Salicaceae; Salix
Issue Date: 2021
Citation: "PhytoKeys", Vol. 184, 2021, s. 83-101
Abstract: Salix lapponum is a cold-tolerant relict species in Europe that occurs in several sites, probably reflecting previous migration routes of S. lapponum during the Pleistocene. However, only a few data are available on the genetic structures of populations of S. lapponum. In this study, we use PCR-ISSR markers to investigate genetic variation in 19 European populations of S. lapponum L. AMOVA analysis shows that most of the variation (55.8%) occurs within populations; variability among groups accounts for 19.7%. An AMOVA analysis based on four groups determined by STRUCTURE analysis shows similar results: variability of 54.1% within the population and variability of 18.9% between the four population groups, based on geographic regions. Within individual geographic groups, which are characterised by the studied populations, the lowest variability (as well as the highest homogeneity) was found in populations located in Belarus. The obtained results are consistent with our expectations that the European Lowland could be a significant geographic barrier for gene flow over large geographic distances for S. lapponum. Both the Scandinavian and Belarusian populations, as well as those coming from NE Poland, are characterised by significant genetic distinctiveness. However, some populations from NE Poland and the Sudetes show similarities with populations from other geographic regions, indicating existing genetic relationships between them. Moreover, the results suggest a fairly clear division of the population into 4 emerging geographic regions, although separated by a geographical barrier: the Polish lowland, which forms part of the larger geographic unit known as the European Lowland.
DOI: 10.3897/phytokeys.184.71641
ISSN: 1314-2011
Appears in Collections:Artykuły (WNP)

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