Alternative splicing (AS) is a crucial regulatory mechanism in eukaryotes, which acts by
greatly increasing transcriptome diversity. The extent and complexity of AS has been …

Of the many processes that generate gene duplications, polyploidy is unique in that entire
genomes are duplicated. This process has been important in the evolution of many …

Allopolyploidy greatly expands the range of possible regulatory interactions among
functionally redundant homoeologous genes. However, connection between the emerging …

Highlights•Hybridity and ploidy induce nonadditive gene expression (activation or
silencing).•Nonadditive gene expression is largely dependent on epigenetic …

Background Interaction between parental genomes is accompanied by global changes in
gene expression which, eventually, contributes to growth vigor and the broader phenotypic …

Multiple cotton genomes (diploid and tetraploid) have been assembled. However, genomic
variations between cultivars of allotetraploid upland cotton (Gossypium hirsutum L.), the …

The importance of whole-genome multiplication (WGM) in plant evolution has long been
recognized. In flowering plants, WGM is both ubiquitous and in many lineages cyclical, each …

Pima cotton (G ossypium barbadense) is widely cultivated because of its long, strong seed
trichomes ('fibers') used for premium textiles. These agronomically advanced fibers were …

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 …

The formation of polyploids significantly increases the complexity of transcriptional
regulation, which is expected to be reflected in sophisticated higher-order chromatin …