Plant genomes vary over several orders of magnitude in size, even among closely related
species, yet the origin, genesis and significance of this variation are not clear. Because DNA …

We present an overview of the cotton genus (Gossypium) as a model for the study of
polyploidy. A synopsis of the origin and evolution of polyploid cotton is provided, offering an …

The two cultivated allopolyploid cottons, Gossypium hirsutum and Gossypium barbadense,
represent a remarkable example of parallel independent domestication, both involving …

Recent studies have shown that allopolyploidy accelerates genome evolution in wheat in
two ways:(1) allopolyploidization triggers rapid genome changes (revolutionary changes) …

Gene duplication is a major force in evolution. Here, we analyzed the fate of duplicated
genes following the ancient whole-genome duplication (WGD) in rice. Polyploidy-derived …

Genome duplication is thought to be central to the evolution of morphological complexity,
and some polyploids enjoy a variety of capabilities that transgress those of their diploid …

The abundance of detected ancient polyploids in extant genomes raises questions
regarding evolution after whole-genome duplication (WGD). For instance, what rules govern …

Whole genome duplications, or tetraploidies, are an important source of increased gene
content. Following whole genome duplication, duplicate copies of many genes are lost from …

Highlights•Modern plants are diploidized paleopolyploids shaped through subgenome
dominance.•Subgenome dominance derives more fractionated and less fractionated …