Most land plants are now known to be ancient polyploids that have rediploidized.
Diploidization involves many changes in genome organization that ultimately restore …

Polyploids—organisms that have multiple sets of chromosomes—are common in certain
plant and animal taxa, and can be surprisingly stable. The evidence that has emerged from …

Plant speciation and diversification strongly rely on structural changes in the nuclear
genome, both at the whole ploidy and individual chromosome level. Phylogenetic …

Allopolyploids result from hybridization between different evolutionary lineages coupled with
genome doubling. Homoeologous chromosomes (chromosomes with common shared …

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 …

Over 1000 genetically linked RFLP loci in Brassica napus were mapped to homologous
positions in the Arabidopsis genome on the basis of sequence similarity. Blocks of …

Polyploidy is produced by multiplication of a single genome (autopolyploid) or combination
of two or more divergent genomes (allopolyploid). The available data obtained from the …

Polyploidy or whole genome duplication (WGD) occurs throughout the evolutionary history
of many plants and some animals, including crops such as wheat, cotton, and sugarcane …

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

Meiosis is a specialized cell division, essential in most reproducing organisms to halve the
number of chromosomes, thereby enabling the restoration of ploidy levels during …