Premise of the Study Polyploidy has been long recognized as an important force in plant
evolution. Previous studies had suggested widespread occurrence of polyploidy and the …

Hybridization, incomplete lineage sorting, and phylogenetic error produce similar
incongruence patterns, representing a great challenge for phylogenetic reconstruction …

Potential events of allopolyploidy may be indicated by incongruences between separate
phylogenies based on plastid and nuclear gene sequences. We sequenced two plastid …

Reticulate evolution often leads to incongruence between nuclear and plastid phylogenies,
and comparisons between them have been used as a first approximation to disentangle …

Background Hawthorn species (Crataegus L.; Rosaceae tribe Maleae) form a well-defined
clade comprising five subgeneric groups readily distinguished using either molecular or …

Reticulation, caused by hybridization and allopolyploidization, is considered an important
and frequent phenomenon in the evolution of numerous plant lineages. Although both …

The grass tribe Triticeae (= Hordeeae) comprises only about 300 species, but it is well
known for the economically important crop plants wheat, barley, and rye. The group is also …

Polyploidy has been described both as an evolutionary dead end and as a major engine of
diversification for angiosperms. Two recent studies have found that genera with higher …

Target enrichment is becoming increasingly popular for phylogenomic studies. Although
baits for enrichment are typically designed to target single-copy genes, paralogs are often …

This thesis comprises studies of the phylogenetic relationships in the flowering plant clade
Potentilleae in Rosaceae. The relationships were elucidated by using DNA sequence data …