Publication at Faculty of Science |
2006
Abstract
Background and Aims Polyploidy is viewed as an important mechanism of sympatric speciation, but only a few studies have documented patterns of distribution and ecology of different cytotypes in their contact zone. Aster amellus agg. (Asteracea
Keywords
Aster amellus agg Asteraceae contact zone cytotype distribution dry grassland flow cytometry polyploidy productivity releves potential direct solar radiation Ellenberg indicator values autopolyploid plantago-media dactylis-glomerata l narrow hybrid zone habitat differentiation anthoxanthum-odoratum evolutionary dynamics chromosome-number genome evolution polyploidy populations