Institute of Botany
of the Czech Academy of Sciences
the largest centre of botanical research in the Czech Republic
The influence of environmental parameters for the genetic structure of the young agamic complex: Hieracium subgen. Pilosella
||The influence of environmental parameters for the genetic structure of the young agamic complex: Hieracium subgen. Pilosella
Krahulec František (researcher)
||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 young hybrids originating at present. Sympatric taxa give rise to new types by hybridization with probable introgression with progeny diverse in reproduction modes and ploidy. The potential of the complex will be evaluated by intentional 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.
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