. "2005-01-01+01:00"^^ . . "0"^^ . "2007-12-31+01:00"^^ . . . "0"^^ . "molecular phylogenetics; cytogenetics; taxonomy; phylogeography; polyploidization; evolutionary history"@en . "1"^^ . . " phylogeography" . " taxonomy" . . "Rekonstrukce fylogenetick\u00FDch vztah\u016F sekavcovit\u00FDch a m\u0159enkovit\u00FDch ryb (Teleostei: Cobitoidea) na z\u00E1klad\u011B molekul\u00E1rn\u00EDch znak\u016F a role polyploidizace v evolu\u010Dn\u00ED" . . . . . . "Prvo\u0159ad\u00FDm c\u00EDlem tohoto projektu bylo studium fylogenetick\u00FDch vztah\u016F ryb nad\u010Deledi Cobitoidea. Za t\u00EDmto \u00FA\u010Delem bylo nutn\u00E9 vymezit jednotliv\u00E9 \u010Deledi za pomoci metod molekul\u00E1rn\u00ED genetiky. Anal\u00FDza molekul\u00E1rn\u00EDch dat potvrdila validitu 5 ji\u017E d\u0159\u00EDve navrhovan\u00FDch"@cs . . "18"^^ . "molecular phylogenetics" . . "18"^^ . . . "GA206/05/2556" . "2007-05-02+02:00"^^ . . . "The present project intended in the first line to study the interrelations among fishes of the superfamily Cobitoidea. In order to realise this aim, the number of families and outline was estimated using modern methods of molecular genetics. With these m"@en . "http://www.isvav.cz/projectDetail.do?rowId=GA206/05/2556"^^ . "2008-12-16+01:00"^^ . " cytogenetics" . . " polyploidization" . "Fishes of the families Cobitidae and Balitoridae form one of the most diverse groups of freshwater fishes in Eurasia and have been used as examples in biogeography. Additionally, polyploidisation events occurred \u00EDndependently on the levels of species, genera and subfamilies, making loaches an ide\u00E1l model to study the role of polyploidisation in evolution and radiation. However, basing on characters of morphology there is no agreement about number and outline of families, genera and species groups or the relations among them, which hampers the efficient use of this amazing animal model. In the present project, molecular genetic data will be u\u0161ed to analyse the phylogenetic relationships among loach fishes. Basing on the results, the families, genera and species groups can be inferred. In the second step, cytogenetic data will be used to interpret the impact of polyploidisation and other cytogenetic changes on the definition and evolution of phylogenetic lineages within the groups. This combination"@en . "Phylogenetic relationships of loach fishes (Teleostei: Cobitoidea) as inferred by molecular markers and the role of polyploidisation in evolution"@en . "\u010Celedi sekavcovit\u00FDch (Cobitidae) a m\u0159enkovit\u00FDch (Balitoridae) p\u0159edstavuj\u00ED jedny z nejrozmanit\u011Bj\u0161\u00EDch skupin eurasijsk\u00FDch sladkovodn\u00EDch druh\u016F ryb. N\u011Bkte\u0159\u00ED z\u00E1stupci byli pou\u017Eiti jako model pro biogeografii. Krom toho je zde zn\u00E1mo n\u011Bkolik p\u0159\u00EDpad\u016F polyploidizace, a to na \u00FArovni druh\u016F, rod\u016F i cel\u00FDch pod\u010Deled\u00ED. Po\u010Det \u010Deled\u00ED, rod\u016F a druhov\u00FDch skupin, jako\u017E i hranice a vztahy mezi nimi, nen\u00ED mo\u017En\u011B zodpov\u011Bd\u011Bt na z\u00E1klad\u011B morfologick\u00FDch znak\u016F, kter\u00E9 byly dosud jedin\u00FDm krit\u00E9riem pro taxonomickou organizaci t\u00E9to jedine\u010Dn\u00E9 skupiny sladkovodn\u00EDch ryb a pr\u00E1v\u011B v\u00FD\u0161e zm\u00EDn\u011Bn\u00E9 nejasnosti v taxonomick\u00E9m t\u0159\u00EDd\u011Bn\u00ED br\u00E1n\u00ED jej\u00EDmu pln\u00E9mu vyu\u017Eit\u00ED jako\u017Eto evolu\u010Dn\u00EDho modelu. V p\u0159edkl\u00E1dan\u00E9m projektu budou k vyjasn\u011Bn\u00ED fylogenetick\u00FDch vztah\u016F v r\u00E1mci skupiny Cobitoidea a pro identifikaci jednotliv\u00FDch \u010Deled\u00ED, rod\u016F i druh\u016F vyu\u017Eity molekul\u00E1rn\u011B genetick\u00E9 znaky. Data z\u00EDskan\u00E1 cytogenetick\u00FDmi metodami budou pou\u017Eita pro interpretaci vlivu polyploidizace a jin\u00FDch zm\u011Bn v karyotypu na evoluci Uni\u00ED v r\u00E1mci t\u00E9to skupiny. Kombinace" . .