About: The elusive Juncus minutulus: a failure to separate tetra- and hexaploid individuals of the Juncus bufonius complex in a morphometric comparison of cytometrically defined groups

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About: The elusive Juncus minutulus: a failure to separate tetra- and hexaploid individuals of the Juncus bufonius complex in a morphometric comparison of cytometrically defined groups Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Screening of nuclear genome size revealed, besides the diploid level corresponding to known diploid species, two polyploid cytotypes conforming with the 4x and 6x levels treated by some authors as Juncus minutulus and J. bufonius s. str. The relationship between nuclear DNA content and the number of chromosomes was verified by chromosome counting. The 2C values of diploid, tetraploid and hexaploid individuals were ca 0.65, 1.182.8% and 1.841.6% pg 2C DNA, respectively. Classificatory discriminant analysis using characters selected by canonical discriminant analysis and stepwise variable selection resulted in a validation error rate of 0.45 after cross-validation. This provides independent support for the opinion of some previous authors that J. bufonius L. is best treated as a single variable species comprising two cytotypes that are inseparable using hitherto suggested diagnostic characters. Screening of nuclear genome size revealed, besides the diploid level corresponding to known diploid species, two polyploid cytotypes conforming with the 4x and 6x levels treated by some authors as Juncus minutulus and J. bufonius s. str. The relationship between nuclear DNA content and the number of chromosomes was verified by chromosome counting. The 2C values of diploid, tetraploid and hexaploid individuals were ca 0.65, 1.182.8% and 1.841.6% pg 2C DNA, respectively. Classificatory discriminant analysis using characters selected by canonical discriminant analysis and stepwise variable selection resulted in a validation error rate of 0.45 after cross-validation. This provides independent support for the opinion of some previous authors that J. bufonius L. is best treated as a single variable species comprising two cytotypes that are inseparable using hitherto suggested diagnostic characters. (en)
Title	The elusive Juncus minutulus: a failure to separate tetra- and hexaploid individuals of the Juncus bufonius complex in a morphometric comparison of cytometrically defined groups The elusive Juncus minutulus: a failure to separate tetra- and hexaploid individuals of the Juncus bufonius complex in a morphometric comparison of cytometrically defined groups (en)
skos:prefLabel	The elusive Juncus minutulus: a failure to separate tetra- and hexaploid individuals of the Juncus bufonius complex in a morphometric comparison of cytometrically defined groups The elusive Juncus minutulus: a failure to separate tetra- and hexaploid individuals of the Juncus bufonius complex in a morphometric comparison of cytometrically defined groups (en)
skos:notation	RIV/67985939:_____/11:00370285!RIV12-AV0-67985939
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GP206/07/P147), S, Z(AV0Z60050516)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Rooks, Frederick Jarolímová, Vlasta Drábková, Lenka Kirschner, Jan
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	Botanický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	197304
http://linked.open...ai/riv/idVysledku	RIV/67985939:_____/11:00370285
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Juncus bufonius; cytotypes; discriminant analysis (en)
http://linked.open.../riv/klicoveSlovo	Juncus bufonius cytotypes discriminant analysis
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[88626ACE53CA]
http://linked.open...i/riv/nazevZdroje	Preslia
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Phylogeny of juncaceae based on comparison of chloroplast, nuclear, mitochondrial data and morphology
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	83
http://linked.open...iv/tvurceVysledku	Kirschner, Jan Jarolímová, Vlasta Rooks, Frederick Záveská Drábková, Lenka
http://linked.open...ain/vavai/riv/wos	000297230600004
http://linked.open...n/vavai/riv/zamer	Struktura, funkce a evoluce biodiversity fotoautotrofních organismů a hub: původ a příčiny jejich proměnlivosti, dynamika populací, společenstev a ekosystémů; využití vybraných výsledků k rozvoji Průhonického parku
issn	0032-7786
number of pages	25 (xsd:int)

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