Molecular phylogeny of Populus (Salicaceae, Salicales) with focus on inter- and intrasectional relationships

The relationships among sections and species within each section in the genus Populus have attracted much attention from taxonomists biologists. In this paper, we provide an overview of current state phylogenetics discuss origin some hybrid species. There has been controversy surrounding North America subsequent dispersal differentiation other parts world. We present most plausible scenario based on phylogenetic analysis fossil records. Sections Abaso, Turanga are all monophyletic, whereas Aigeiros, Tacamahaca Leucoidesshow degree polyphyly. Abaso relatively primitive lineages Populus. With accumulation sequencing data new analytical tools, it will be possible to investigate more complicated issues concerning a framework.