title: Genome duplication and the origin of angiosperms.
abstract: Despite intensive research, little is known about the origin of the angiosperms and their rise to ecological dominance during the Early Cretaceous. Based on whole-genome analyses of Arabidopsis thaliana, there is compelling evidence that angiosperms underwent two whole-genome duplication events early during their evolutionary history. Recent studies have shown that these events were crucial for the creation of many important developmental and regulatory genes found in extant angiosperm genomes. Here, we argue that these ancient polyploidy events might have also had an important role in the origin and diversification of the angiosperms.
authors.affiliation: Department of Plant Systems Biology, Flanders Interuniversity Institute for Biotechnology (VIB), Ghent University, Technologiepark 927, B-9052 Ghent, Belgium.
authors.forename: Stefanie
authors.initials: S
authors.lastname: De Bodt
authors.forename: Steven
authors.initials: S
authors.lastname: Maere
authors.forename: Yves
authors.initials: Y
authors.lastname: Van de Peer