Počet záznamů: 1
Occurrence and habitat preferences of diploid and tetraploid cytotypes of Centaurea stoebe in the Czech Republic
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SYSNO ASEP 0434647 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Occurrence and habitat preferences of diploid and tetraploid cytotypes of Centaurea stoebe in the Czech Republic Tvůrce(i) Otisková, V. (CZ)
Koutecký, T. (CZ)
Kolář, Filip (BU-J) ORCID, RID
Koutecký, P. (CZ)Celkový počet autorů 4 Zdroj.dok. Preslia. - : Česká botanická společnost - ISSN 0032-7786
Roč. 86, č. 1 (2014), s. 67-80Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova flow cytometry ; Centaurea stoebe ; Centaurea maculosa ; cytogeography ; distribution Vědní obor RIV EF - Botanika Institucionální podpora BU-J - RVO:67985939 UT WOS 000332804600005 Anotace Two ecologically and phenotypically distinct cytotypes, a diploid and tetraploid, are known in Centaurea stoebe. Diploids are widespread throughout Europe and occur mainly in semi-natural habitats (dry grasslands, rocky ledges, etc.). Tetraploids are probably native in south-eastern Europe and spreading in central and western Europe, where they frequently occur in man-made habitats (roads and railways, stone quarries, etc.). Tetraploids occur also in North America, where they rank among the most noxious invasive plants. Despite good knowledge on various life history traits and the invasiveness of tetraploids, detailed information on the distribution of cytotypes in its native range in Europe is still fragmentary and there is no karyological data on C. stoebe occurring in the Czech Republic. Using flow cytometric screening of 119 populations, we report for the first time the occurrence of both cytotypes in the Czech Republic and describe their habitat preferences. Diploids (94 localities) were more frequent than tetraploids (25 localities). Habitat preferences of the cytotypes confirmed the situation reported from other parts of central and western Europe: diploids markedly prevail in semi-natural habitats whereas tetraploids occupy mainly man-made habitats. The C. stoebe cytotypes can be distinguished as distinct subspecies and should be added to the current list of the Czech flora. Pracoviště Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2015
Počet záznamů: 1