About: Genetic structure and differentiation among populations of Barbatula barbatula and Cobitis elongatoides: implication for Danube river system biogeography

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About: Genetic structure and differentiation among populations of Barbatula barbatula and Cobitis elongatoides: implication for Danube river system biogeography Goto Sponge NotDistinct Permalink

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Description	The distribution and genetic population structure of most species were greatly affected by the climatic cycles during Pleistocene glaciations. Populations surviving ice ages in southern or central Europe served as sources for reinvasion during the interglacial times. Few studies investigated the colonization pattern in freshwater systems in Europe. Nevertheless, there is a persisting disagreement according to the investigated fish species. The proposed project suggests to compare colonisation strategies of two species occurring in the same river system but inhabiting different parts of the river stretch. Results will reveal the genetic diversity and population structure of both species and should help to understand the evolutionary process that led to the present distribution of fish gene pools in one of the main river systems of Europe. Obtained information could be useful in elucidating between recent and more ancient evolutionary events that have promoted species diversification. (en) Na distribúciu a genetickú štruktúru populácií väčšiny druhov organizmov vo veľkej miere vplývali klimatické zmeny súvisiace s Pleistocénnym zaľadnením. Populácie prežívajúce dobu ľadovú v južnej a strednej Európe slúžili ako zdroje pre následnú inváziu v medziľadových dobách. Kolonizačnému modelu riečnych systémov Európy sa venovalo niekoľko štúdií, táto otázka napriek tomu zostáva nedoriešená, vzhľadom na odlišnosti v zisteniach podľa skúmaného druhu ryby. Predkladaný projekt navrhuje porovnať kolonizačné stratégie dvoch druhov rýb vyskytujúcich sa v rovnakom riečnom systéme, ale obývajúcich rozdielne úseky toku. Výsledky odhalia genetickú diverzitu a populačnú štruktúru oboch druhov a prispejú k pochopeniu evolučných procesov, ktoré viedli k súčasnej distribúcii genofondu rybích populácií jedného z najvýznamnejších riečnych systémov Európy. Získané informácie budú tiež cenným prínosom k objasneniu recentných i dávnejších evolučných udalostí, ktoré pôsobili na druhovú diverzifikáciu. (cs)
Title	Genetická štruktúra a diferenciácia populácií druhov Barbatula barbatula a Cobitis elongatoides: biogeografia riečneho systému Dunaja (cs) Genetic structure and differentiation among populations of Barbatula barbatula and Cobitis elongatoides: implication for Danube river system biogeography (en)
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http://linked.open...vai/klicova-slova	phylogeography, mtDNA, mikrosatelittes, Pleistocene glaciation, refuges, colonisation (en)
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is http://linked.open...ain/vavai/projekt of	http://linked.opendata.cz/resource/domain/vavai/cep/ucast/2006/KJB600450601/ico-67985904 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/2007/KJB600450601/ico-67985904 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/2008/KJB600450601/ico-67985904 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/2009/KJB600450601/ico-67985904

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