Polyploidy, or whole genome multiplication, is ubiquitous among angiosperms. Many crop
species are relatively recent allopolyploids, resulting from interspecific hybridization and …

Enormous strides have been made in the study of polyploidy over the last 20 yr. Here, we
highlight some of these discoveries and note where our understanding of polyploid …

Many previous studies have provided evidence for genome changes in polyploids, but there
are little data on the overall population dynamics of genome change and whether it causes …

Even before the publication of Darwin's Origin of Species, the perception of evolutionary
change has been a tree-like pattern of diversification-with divergent branches spreading …

Whole-genome duplications are radical evolutionary events that have driven speciation and
adaptation in many taxa. Higher-order polyploids have complex histories often including …

Polyploidization and recombination are two important processes driving evolution through
the building and reshaping of genomes. Allopolyploids arise from hybridization and …

Allopolyploidy involves hybridization and duplication of divergent parental genomes and
provides new avenues for gene expression. The expression levels of duplicated genes in …

Background In studies looking at individual polyploid species, the most common patterns of
genomic change are that either genome size in the polyploid is additive (ie the sum of …

Tragopogon mirus Ownbey and T. miscellus Ownbey are allopolyploids that formed
repeatedly during the past 80 years following the introduction of three diploids (T. dubius …

In this paper, we examine how the Spartina system has helped our understanding of the
genomic aspects of allopolyploid speciation in the context of biological invasion. More …