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

Result code in 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>

Alternative codes found

RIV/67985939:_____/11:00370285

Result on the web

<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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Result language

angličtina

Original language name

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

Original language 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 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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EF - Botany

OECD FORD branch

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Project

<a href="/en/project/GP206%2F07%2FP147" target="_blank" >GP206/07/P147: Phylogeny of juncaceae based on comparison of chloroplast, nuclear, mitochondrial data and morphology</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2011

Confidentiality

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

Name of the periodical

Preslia

ISSN

0032-7786

e-ISSN

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Volume of the periodical

83

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

25

Pages from-to

565-589

UT code for WoS article

000297230600004

EID of the result in the Scopus database

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