Standing between us and global food shortage are high yielding varieties of wheat, oilseed
rape, potato, maize and sugarcane. These come from diverse plant families, but share the …

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 …

Background Polyploids are common in flowering plants and they tend to have more
expanded ranges of distributions than their diploid progenitors. Possible mechanisms …

Polyploid formation has played a major role in the evolution of many plant and animal
genomes; however, surprisingly little is known regarding the subsequent evolution of DNA …

The classical example of nonadditive contributions of the two parents to allopolyploids is
nucleolar dominance, which entails silencing of one parental set of ribosomal RNA genes …

Polyploidy is an evolutionary process whereby two or more genomes are brought together
into the same nucleus, usually by hybridization followed by chromosome doubling. As a …

Polyploidy complicates transcriptional regulation and increases phenotypic diversity in
organisms. The dynamics of genetic regulation of gene expression between coresident …

Recent advances in the genomics of polyploid species answer some of the long-standing
questions about the role of polyploidy in crop species. Here, we summarize the current …

The hypothesis of genetic additivity states that the effects of different alleles, or different
genes, add up to produce the phenotype. When considering the F1 progeny of a cross, the …

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 …