Phylogeny, diversification rates and species boundaries of Mesoamerican firs (Abies, Pinaceae) in a genus-wide context

► Repetitive and non-repetitive cpDNA regions were used to infer the phylogeny of firs. ► The genus Abies is monophyletic and composed by five main phylogeographic groups. ► Only two significantly divergent taxa were observed within the Mesoamerican lineage. ► Divergence within this lineage was prompted by stochastic forces on isolated stands. ► This subtropical clade did not show faster diversification than the temperate ones.