Fig. 8From: 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 Bytom Odrzański 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 cross indicates the locations of the hybrid individuals recognized as the cultivar Populus ‘Marilandica’. The location data of each studied tree are available online: https://mygeodata.cloud/map/#9722590-Black-poplar-population-BytomOdrzanskiBack to article page