Abstract Background and Aims Polyploidy is arguably the single most important genetic
mechanism in plant speciation and diversification. It has been repeatedly suggested that …

Highlights•Most studies of polyploidization and diversification use indirect methods as
evidence for polyploidy, and often cannot capture a reticulate history.•Approaches that use …

Polyploidy, resulting from the duplication of the entire genome of an organism or cell, greatly
affects genes and genomes, cells and tissues, organisms, and even entire ecosystems …

Most eukaryotes have a history of whole-genome multiplication events followed by a
progressive return to a more diploid state. The initial state of polyploidization, in which more …

Advances in recent years have revolutionized our understanding of both the context and
occurrence of polyploidy in plants. Molecular phylogenetics has vastly improved our …

In spite of their success during the past several millions of years, recent analyses indicate
that polyploid species may have higher extinction rates than their diploid relatives. The idea …

At least two whole-genome duplications (WGD) have profoundly influenced the evolution of
most, if not all, grass (Poaceae) genomes, with the most recent of these predating the …

Polyploidy has long been recognized as a key process in plant evolution and it is the subject
of a plethora of reviews (for just two recent examples, see Wendel (2015) and Soltis et …

Autopolyploidy is more common in plants than traditionally assumed, but has received little
attention compared with allopolyploidy. Hence, the advantages and disadvantages of …

The fate of polyploid lineages has been of long-standing interest to evolutionary biologists.
In our previous work (Mayrose et al., 2011a; reviewed in Arrigo & Barker, 2012), we used …