. "3"^^ . "0"^^ . "Hybridizace v komplexu druh\u016F Triticum aestivum - Elytrigia intermedia - E. repens: p\u0159\u00EDklad mo\u017En\u00E9ho toku gen\u016F plodina - plan\u00FD p\u0159\u00EDbuzn\u00FD" . "Hybridisation within the wheat (Triticum aestivum)-Elytrigia intermedia-E. repens species complex: a probable case of crop - wild relative gene flow"@en . "Pro v\u011Bt\u0161inu analyzovan\u00FDch populac\u00ED p\u00FDr\u016F Elytrigia repens a E. intermedia a jejich hybrid\u016F byl potvrzen po\u010Det chromozom\u016F 2n=42. Nonaploidn\u00ED rostliny (9x) byly nalezeny u hybrid\u016F a E. repens. Oba druhy se li\u0161\u00ED obsahem DNA, kter\u00FD m\u016F\u017Ee b\u00FDt pou\u017Eit jako ur\u010Dova"@cs . "3"^^ . "1"^^ . . "2005-01-01+01:00"^^ . "wheat; Elytrigia; hybridisation; gene flow"@en . . . "For most of populations of Elytrigia repens, E. intermedia and their hybrids we confirmed chromosome number 2n=42. Nonaploid plants (9x) found were mostly hybrids and once E. repens. Both species differ in DNA content, which can be used as differential c"@en . "0"^^ . "Zejm\u00E9na ve sv\u011Btle uv\u00E1d\u011Bn\u00ED geneticky modifikovan\u00FDch plodin do prost\u0159ed\u00ED se hybridizace plodin s jejich plan\u00FDmi p\u0159\u00EDbuzn\u00FDmi stala mo\u017En\u00FDm ohro\u017Een\u00EDm diverzity nejen agrosyst\u00E9mu, ale i p\u0159irozen\u00FDch spole\u010Denstev. Proto\u017Ee v\u00EDme, \u017Ee k toku gen\u016F m\u016F\u017Ee doch\u00E1zet, ale nev\u00EDme, jak se tyto nov\u00E9 geny mohou projevit v p\u0159irozen\u00FDch ekosyst\u00E9mech, je t\u0159eba ohodnotit m\u00EDru rizika toku gen\u016F je\u0161t\u011B p\u0159ed zaveden\u00EDm geneticky modifikovan\u00E9 plodiny do prost\u0159ed\u00ED. V p\u0159\u00EDpad\u011B p\u0161enice existuje schopnost hybridizace s n\u011Bkter\u00FDmi druhy Elytrigia. Zejm\u00E9na E. intermedia b\u00FDv\u00E1 \u0161lechtiteli s p\u0161enic\u00ED k\u0159\u00ED\u017Een \u010Dasto, p\u0159edev\u0161\u00EDm z d\u016Fvodu p\u0159enosu n\u011Bkter\u00FDch \u017E\u00E1douc\u00EDch vlastnost\u00ED p\u00FDru do genomu p\u0161enice. Jestli\u017Ee v\u0161ak k hybridizaci doch\u00E1z\u00ED i v p\u0159\u00EDrod\u011B, je t\u0159eba tomuto komplexu druh\u016F v\u011Bnovat zv\u00FD\u0161enou pozornost. Proto\u017Ee se E. intermedia snadno k\u0159\u00ED\u017E\u00ED s druhem E. repens, teoreticky je mo\u017En\u00FD tok gen\u016F z p\u0161enice a\u017E do tohoto pleveln\u00E9ho druhu. Z t\u011Bchto d\u016Fvod\u016F bude pomoc\u00ED vhodn\u00FDch molekul\u00E1rn\u00EDch marker\u016F, vyvinut\u00FDch pro detekci hybridizace, testov\u00E1no takov\u00E9" . . . . . . "2008-12-16+01:00"^^ . . "wheat" . "http://www.isvav.cz/projectDetail.do?rowId=GA206/05/0778"^^ . . . " hybridisation" . . "GA206/05/0778" . "2007-12-31+01:00"^^ . . . " Elytrigia" . . . . . "Namely with respect to the release of genetically modified crops, hybridisation between crops and wild relatives has emerged as a potential problem for biodiversity in agro- and natural ecosystems. Because we know that gene flow can occur but we don't know how the genes can influence natural ecosystems, it is necessary to evaluate the possibility of gene flow before the genetically modified crop is released into the environment. As species of the genus Elytrigia are among the most important sources ofvaluable biological traits for selection of wheat, namely experimental crosses between E. intermedia and Triticum aestivum have been carried out over a long time to date. If plants do hybridise in the field as well, this example is of crucial interest. Because E. intermedia readily crosses with E. repens, it can serve as a bridge for the escape of genes from wheat into E. repens. In that case, Triticum aestivum, Elytrigia intermedia and E. repens provide a suitable model for the study of gene flow with"@en . "2007-05-02+02:00"^^ .