Phylogenomic study of <i>Amorphophallus</i> (Alismatales; Araceae): When plastid DNA gene sequences help to resolve the backbone subgeneric delineation

Encompassing ca. 200 species distributed in paleotropical Africa and Asia, Amorphophallus is one of the largest genera Araceae. In spite great economic interest its glucomannan production, only a few studies have attempted to grasp evolutionary history this genus. current state knowledge, four main clades, mostly linked biogeographical delineation, been identified from phylogenies based on genes. However, relationships among within these clades still remain unclear, due rapid radiation that occurred during early Here, we generated genome skimming libraries for 43 specimens 36 across 4 which allowed us produce phylogenetic matrix set 71 plastid Our confirm monophyly but show new well-resolved arrangement clades. analyses therefore provide scenario timeline evolution consistent with morphological characteristics The inferred also agreement climate dynamics onset long-distance dispersal by earliest migratory birds near Oligocene/Miocene transition around 23 million years ago. study provides an up-to-date baseline understand biogeographic ecological processes shaped diversity distribution Amorphophallus, paving way larger-scale phylogenomic nuclear genomes.