Background 45S rDNA sites are the most widely documented chromosomal regions in
eukaryotes. The analysis of the distribution of these sites along the chromosome in several …

Allopolyploid plants are hybrids that contain two copies of the genome from each parent.
Whereas wild and cultivated allopolyploids are well adapted, man-made allopolyploids are …

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 …

Comparative studies have provided the basis for some of the most important discoveries in
biology. The study of differences, whether at the level of gene alleles or living kingdoms, has …

Molecular evolutionary rate variation in Gossypium (cotton) was characterized using
sequence data for 48 nuclear genes from both genomes of allotetraploid cotton, models of …

Allopolyploid speciation is widespread in plants, yet the molecular requirements for
successful orchestration of coordinated gene expression for two divergent and reunited …

The mapping of functional genes plays an important role in studies of genome structure,
function, and evolution, as well as allowing gene cloning and marker-assisted selection to …

Recent work has demonstrated that allopolyploid speciation in plants may be associated
with non-Mendelian genomic changes in the early generations following polyploid …

The nuclear ribosomal locus coding for the large subunit is represented in tandem arrays in
the plant genome. These consecutive gene blocks, consisting of several regions, are widely …

DNA barcoding is the process of identification of species based on nucleotide diversity of
short DNA segments. It is well established in animals with the introduction of cytochrome c …