Fig. 9From: Low effective population size and high spatial genetic structure of black poplar populations from the Oder valley in PolandThe distribution map of black poplar trees at the studied area located near Cigacice city in Poland. The red points indicate the location of black poplar trees. Different color squares indicate the location of black poplar trees which share the same genotype. The blue crosses indicate the location of the hybrid individuals recognized as the cultivar Populus ‘Marilandica’, whereas the yellow crosses indicate the location of the hybrid individuals recognized as the cultivar P. ‘Robusta’. The location data of each studied tree are available online: https://mygeodata.cloud/map/#9723423-Black-poplar-population-CigaciceBack to article page