About: Nuclear DNA Content Variation among Central European Koeleria Taxa

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Background and Aims: Polyploidization plays an important role in the evolution of many plant genera, including Koeleria. The knowledge of ploidy, chromosome number and genome size may enable correct taxonomic treatment when other features are insufficient as in Koeleria. Therefore, these characteristics and their variability were determined for populations of six central European Koeleria taxa. Methods: Chromosome number analysis was performed by squashing root meristems, and ploidy and 2C nuclear DNA content were estimated by flow cytometry. Key Results: Three diploids (K. glauca, K. macrantha var. macrantha and var. pseudoglauca), one tetraploid (K. macrantha var. majoriflora), one decaploid (K. pyramidata) and one dodecaploid (K. tristis) were found. The 2C nuclear DNA content of the diploids ranged from 4.85 to 5.20 pg. The 2C DNA contents of tetraploid, decaploid and dodecaploid taxa were 9.31 pg, 22.89 pg and 29.23 pg, respectively. The DNA content of polyploids within the K. macrantha aggregat Background and Aims: Polyploidization plays an important role in the evolution of many plant genera, including Koeleria. The knowledge of ploidy, chromosome number and genome size may enable correct taxonomic treatment when other features are insufficient as in Koeleria. Therefore, these characteristics and their variability were determined for populations of six central European Koeleria taxa. Methods: Chromosome number analysis was performed by squashing root meristems, and ploidy and 2C nuclear DNA content were estimated by flow cytometry. Key Results: Three diploids (K. glauca, K. macrantha var. macrantha and var. pseudoglauca), one tetraploid (K. macrantha var. majoriflora), one decaploid (K. pyramidata) and one dodecaploid (K. tristis) were found. The 2C nuclear DNA content of the diploids ranged from 4.85 to 5.20 pg. The 2C DNA contents of tetraploid, decaploid and dodecaploid taxa were 9.31 pg, 22.89 pg and 29.23 pg, respectively. The DNA content of polyploids within the K. macrantha aggregat (en)
Title	Nuclear DNA Content Variation among Central European Koeleria Taxa Nuclear DNA Content Variation among Central European Koeleria Taxa (en)
skos:prefLabel	Nuclear DNA Content Variation among Central European Koeleria Taxa Nuclear DNA Content Variation among Central European Koeleria Taxa (en)
skos:notation	RIV/61989592:15310/06:00010848!RIV10-GA0-15310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/04/0786), P(LC06004), Z(AV0Z50380511)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Doležel, Jaroslav Trávníček, Bohumil
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	489271
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/06:00010848
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Chromosome number; polyploidy; nuclear DNA content; genome size variation; flow cytometry; grasses; Poaceae; Koeleria (en)
http://linked.open.../riv/klicoveSlovo	grasses Chromosome number Koeleria flow cytometry polyploidy nuclear DNA content genome size variation Poaceae
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[74C06CEA4262]
http://linked.open...i/riv/nazevZdroje	Annals of Botany
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Integration of research activities to study the plant genome Flora of the Czech republic - vol.8/2
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	98
http://linked.open...iv/tvurceVysledku	Doležel, Jaroslav Trávníček, Bohumil Pečinka, A. Lysák, M. A. Suchánková, P.
http://linked.open...n/vavai/riv/zamer	Mechanismy regulace růstu a vývoje rostlin na úrovni buněk, orgánů a celých organismů: fyziologické, genetické a molekulárně biologické základy
issn	0305-7364
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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