The phylogenies of allopolyploids take the shape of networks and cannot be adequately
represented as bifurcating trees. Especially for high polyploids (ie, organisms with more than …

Allopolyploidization accounts for a significant fraction of speciation events in many
eukaryotic lineages. However, existing phylogenetic and dating methods require tree-like …

The endemic Hawaiian flora offers remarkable opportunities to study the patterns of plant
morphological and molecular evolution. The Hawaiian violets are a monophyletic lineage of …

There is a rising awareness that species trees are best inferred from multiple loci while
taking into account processes affecting individual gene trees, such as substitution model …

Background Gene trees that arise in the context of reconstructing the evolutionary history of
polyploid species are often multiply-labeled, that is, the same leaf label can occur several …

Allelic variation within individuals holds information regarding the relationships of
organisms, which is expected to be particularly important for reconstructing the evolutionary …

Abstract Specialists studying the genus Viola have consistently allied the Hawaiian violets
comprising section Nosphinium—most of which are subshrubs or treelets—with putatively …

Context and purpose. Due to ubiquity of polyploid species formation in angiosperms,
reconstructing the evolutionary history of polyploid complexes is at the forefront of …

Speciation via hybridization and polyploidization is a major evolutionary force in plant
evolution but is still poorly understood for neopolyploid groups. Challenges are attributed to …

If particular traits consistently affect rates of speciation and extinction, broad
macroevolutionary patterns can be interpreted as consequences of selection at high levels …