Relatively, few species have been able to colonize extremely cold alpine environments. We investigate the role played by the cushion life form in the evolution of climatic niches in the plant genus Androsace s.l., which spreads across the mountain ranges of the Northern Hemisphere. Using robust methods that account for phylogenetic uncertainty, intraspecific variability of climatic requirements...

Phylogeographical studies frequently detect range shifts, both expansions (including long-distance dispersal) and contractions (including vicariance), in the studied taxa. These processes are usually inferred from the patterns and distribution of genetic variation, with the potential pitfall that different historical processes may result in similar genetic patterns. Using a combination of DNA s...

Compared to traditional DNA markers, genome-scale datasets can provide mass information to effectively address historically difficult phylogenies. Primula is the largest genus in the family Primulaceae, with members distributed mainly throughout temperate and arctic areas of the Northern Hemisphere. The phylogenetic relationships among Primula taxa still maintain unresolved, mainly due to intra...

Androsace vitaliana (syn. Vitaliana primuliflora; Primulaceae) has been subject to several taxonomic treatments, whose conclusions ranged from a single species with numerous infraspecific taxa to several species usually without infraspecific taxa. Here, following molecular investigation, several taxonomic changes are made. A single species with the following infraspecific taxa is recognized: su...

I. Orgzall Hochdrucklabor bei der Universität Potsdam, Telegrafenberg A43, D-14416 Potsdam, Germany B. Lorenz, S. T. Ting, P.-H Hör Texas Center for Superconductivity, University of Houston, TX 77204, USA V. Menon, Ch. R Martin Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA H. D. Hochheimer Department of Physics, Colorado State University, Fort Collins, CO 80523...