The classical model of concerted evolution states that hundreds to thousands of ribosomal
DNA (rDNA) units undergo homogenization, making the multiple copies of the individual …

The anthozoan sub-class Octocorallia, comprising approximately 3000 species of soft
corals, gorgonians, and sea pens, remains one of the most poorly understood groups of the …

New species are generated by many means, among which hybridization plays an important
role. Interspecific hybrids can form isolated evolutionary units, especially when mechanisms …

Abstract Background The wheat tribe Triticeae (Poaceae) is a diverse group of grasses
representing a textbook example of reticulate evolution. Apart from globally important grain …

Background Polyploidy is important from a phylogenetic perspective because of its immense
past impact on evolution and its potential future impact on diversification, survival and …

Phylogenetic relationships inferred from multilocus organellar and nuclear DNA data are
often difficult to resolve because of evolutionary conflicts among gene trees. However …

We employed sequencing of clones and in situ hybridization (genomic and fluorescent in
situ hybridization [GISH and rDNA-FISH]) to characterize both the sequence variation and …

Molecular evolution of ribosomal DNA can be highly dynamic. Hundreds to thousands of
copies in the genome are subject to concerted evolution, which homogenizes sequence …

Abstract Background and Aims Apomixis or asexual seed reproduction is a key evolutionary
mechanism in certain angiosperms providing them with reproductive assurance and …

Gametophytic apomixis (asexual seed formation without syngamy of female and male
gametes) is a highly interesting mechanism for researchers in plant biotechnology, genetics …