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Distribution and Ecology of Aster amellus aggregates in the Czech Republic

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F06%3A00045310" target="_blank" >RIV/67985939:_____/06:00045310 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Distribution and Ecology of Aster amellus aggregates in the Czech Republic

  • Original language description

    Background and Aims Polyploidy is viewed as an important mechanism of sympatric speciation, but only a few studies have documented patterns of distribution and ecology of different cytotypes in their contact zone. Aster amellus agg. (Asteraceae) is one of the species with documented multiple ploidy levels. The aim of this study was to determine spatial distribution and ecology of two cytotypes, diploid (2n = 18) and hexaploid (2n = 54), of Aster amellus agg. at their contact zone in the Czech Republic.center dot Methods Root-tip squashes and flow cytometry were used to determine the ploidy of 2175 individuals from 87 populations. To test whether some differences in ecology between the two ploidy levels exist, in each locality releves were recorded andabiotic conditions of the sites were studied by estimating potential direct solar radiation, Ellenberg indicator values and above-ground biomass. center dot Key Results Together with diploid and hexaploids, minorite cytotypes (triploid,

  • Czech name

    Distribuce a ekologie cytotypů druhu Aster amellus v České republice

  • Czech description

    Cílem projektu bylo prostudovat rozšíření a ekologii diploidních a hexaploidních populací druhu Aster amellus v České Republice. Výsledky ukazují, že Česká republika se nachází v kontaktní zóně obou cytotypů. V práci nebyli nalezeny žádné smíšené populace druhu a to přes to, že se populace obou ploidií vyskytují velmi blízko sebe. Zajímavé také je, že nebyl nalezen žádný ekologický faktor diferencující obě ploidie. Pro pochopení pozorovaného pattern jsou potřeba další podrobnější studie.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EF - Botany

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Annals of Botany

  • ISSN

    0305-7364

  • e-ISSN

  • Volume of the periodical

    98

  • Issue of the periodical within the volume

    -

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    12

  • Pages from-to

    845-856

  • UT code for WoS article

  • EID of the result in the Scopus database