Hybrid zones, or zones of genetic admixture of different intraspecific cytotypes, provide clues to evolutionary transitions and the mechanisms of polyploid speciation. Čertner et al. present insights into the spatio...
Distribution of polyploidy along a relatively steep Andean elevation gradient is studied using the genus Fosterella (Bromeliaceae) as a model system. Paule et al. observed an ecological differentiation of cytotypes with...
Previous studies have suggested that carnivory and holokinetic chromosomes might be associated with genome downsizing in plants. Veleba et al. analysed genome evolution in sundews (Droseraceae), a widespread genus that...
In a recent article published in AoB PLANTS, Schinkel et al. present a study on geographical parthenogenesis, an enigmatic and much disputed phenomenon that involves closely related sexual and apomictic (asexually...
The Balkan Peninsula is one of the most important centres of plant diversity in Europe. Yet its flora is still largely unexplored and calls for further investigations. Olšavská et al. focus on Balkan taxa of the Cyanus...
The family Zingiberaceae is well known for its range of secondary constituents and bioactive metabolites, such as flavonoids, phenolic acids and essential oils known to increase nuclei stickiness in cell free lysate. As...
Polyploidy in plants has been studied extensively. In many groups, two or more cytotypes represent separate biological entities with distinct distributions, histories and ecology. Mandák et al. analysed ploidy level...
In ferns, apomixis is an important mode of asexual reproduction. Although the mechanisms of fern reproduction have been studied thoroughly, most previous work has focused on cases in which ferns reproduce either...
Knowledge of rangewide variation in DNA content and ploidy level may be valuable in understanding the evolutionary history of a species. A recent study of Acacia senegal showed a geographic pattern of genetic variation...
Measurements of nuclear genome sizes from cultivated plant material for a comprehensive taxon sampling that includes nearly half of all species in Genlisea.
Mechanisms enabling the maintenance of sexual and apomictic modes of seed formation in sympatry are poorly understood. Dobeš et al. study populations of Potentilla puberula representing various combinations of five...