. "2009-04-03+02:00"^^ . "agamic complex; hybridization; reproduction modes and ploids; introgression; origin of hybrids; population structure; environmental parameters"@en . "The influence of environmetal parameters on the genetic structure of the young agamic complex: Hieracium subgen. Pilosella"@en . . "11"^^ . . "11"^^ . . "Vliv ekologick\u00FDch faktor\u016F na genetickou strukturu mlad\u00E9ho agamick\u00E9ho komplexu: Hieracium subgen. Pilosella" . . "1"^^ . "IAA6005203" . . "http://www.isvav.cz/projectDetail.do?rowId=IAA6005203"^^ . . . "0"^^ . . " introgression" . "Byly kvantifikov\u00E1ny rozmno\u017Eovac\u00ED syst\u00E9my u hybridogenn\u00EDch druh\u016F Hieracium. Residu\u00E1ln\u00ED sexualita m\u00E1 v\u00FDznam pro tvorbu agamick\u00FDch komplex\u016F v populac\u00EDch. Apomikty maj\u00ED v\u00EDce variabiln\u00ED potomstvo (ploidie), ne\u017E sexu\u00E1ln\u00ED typy; selekce ploidi\u00ED je p\u0159i kl\u00ED\u010Den\u00ED."@cs . . . "0"^^ . "Breeding systems of Hieracium were quantified; residual sexuality is important for formation of agamic complexes within populations. Apomicts have more variable progeny in ploidy than sexual plants, selection within them is during germination."@en . . " origin of hybrids" . "agamic complex" . " population structure" . . . . " hybridization" . . "Agamick\u00E9 komplexy tvo\u0159\u00ED v\u00FDznamnou \u010D\u00E1st fl\u00F3ry st\u0159edn\u00ED Evropy: vedle star\u00FDch skupin existuj\u00ED i komplexy mlad\u00E9, vyv\u00EDjej\u00EDc\u00ED se za nyn\u011Bj\u0161\u00EDch ekologick\u00FDch podm\u00EDnek. Komplex Hieracium subgen. Pilosella zahrnuje vedle z\u00E1kladn\u00EDch druh\u016F ust\u00E1len\u00E9 hybridy a hybridy vznikaj\u00EDc\u00ED nov\u011B. Sympatrick\u00E9 taxony mohou vytv\u00E1\u0159et nov\u00E9 typy (hybridizac\u00ED a pravd\u011Bpodobnou introgres\u00ED, potomstvo m\u016F\u017Ee b\u00FDt r\u016Fznorod\u00E9 co do reproduk\u010Dn\u00EDch zp\u016Fsob\u016F a ploidie). Hybridiza\u010Dn\u00ED potenci\u00E1l bude zhodnocen experiment\u00E1ln\u011B c\u00EDlen\u00FDm k\u0159\u00ED\u017Een\u00EDm a sledov\u00E1n\u00EDm v p\u0159\u00EDrod\u011B vznikaj\u00EDc\u00EDch typ\u016F. Sledov\u00E1n\u00ED vzniku a \u00FAsp\u011B\u0161nosti uchycen\u00ED hybrid\u016F na stanovi\u0161ti v r\u016Fzn\u00E9 f\u00E1zi ontogeneze m\u00E1 objasnit \u00FAlohu selekce p\u0159i jejich uplatn\u011Bn\u00ED v p\u0159\u00EDrod\u011B. Anal\u00FDza vnitro- a mezipopula\u010Dn\u00ED prom\u011Bnlivosti zp\u0159esn\u00ED dosavadn\u00ED znalosti o procesech vzniku hybridn\u00EDch taxon\u016F." . . . . . . " reproduction modes and ploids" . "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."@en .