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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10118602" target="_blank" >RIV/00216208:11310/11:10118602 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/11:00370285

Výsledek na webu

<a href="http://www.ibot.cas.cz/preslia/members/P112Rooks.pdf" target="_blank" >http://www.ibot.cas.cz/preslia/members/P112Rooks.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 relationshipbetween 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, 1.18+-2.8% and 1.84+-1.6% 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 relationshipbetween 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, 1.18+-2.8% and 1.84+-1.6% 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

<a href="/cs/project/GP206%2F07%2FP147" target="_blank" >GP206/07/P147: Fylogeneze čeledi Juncaceae na základě srovnání chloroplastových, nukleárních, mitochondriálních dat a morfologie</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Preslia

ISSN

0032-7786

e-ISSN

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Svazek periodika

83

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

25

Strana od-do

565-589

Kód UT WoS článku

000297230600004

EID výsledku v databázi Scopus

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