The influence of environmetal parameters on the genetic structure of the young agamic complex: Hieracium subgen. Pilosella
| Name: | The influence of environmetal parameters on the genetic structure of the young agamic complex: Hieracium subgen. Pilosella |
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| Researchers: |
Plačková Ivana (member in research team) Krahulcová Anna (member in research team) Chrtek Jindřich (member in research team) Fehrer Judith (member in research team) Štěpánek Jan (member in research team) |
| Provider: | GAAV |
| Realization from: | 2002 |
| Realization to: | 2006 |
| Summary: | Agamic complexes form a substantial part of Central European flora: in addition to old groups there are also young (early mature) complexes, developing under present conditions. Hieracium subgen. Pilosella consists of basic species, stabilized hybrids, as well as of young hybrids originating at present. Sympatric taxa give rise to new types hy hybridization followed by probable introgression. The progeny is diverse in reproduction modes and ploidy. The potential of the complex will be evaluated by ententional crosses and will be compared with types arising and existing in nature. The selection will be studied at different phases (seed formation and germination, seedling establishment, growth of adult plants). The analysis of within and among population variation will explain the processes (introgression, multiple origin of hybrids) and the existing pattern. |