Université de Fribourg

Allozyme variation in diploid, polyploid and mixed-ploidy populations of the Pilosella alpicola group (Asteraceae): relation to morphology, origin of polyploids and breeding system

Šingliarová, Barbora ; Chrtek, Jindřich ; Plačková, Ivana ; Mráz, Patrik

In: Folia Geobotanica, 2011, p. -

The Pilosella alpicola group includes four species (P. alpicola s.str., P. ullepitschii, P. rhodopea and P. serbica) with allopatric distributions (Alps, Balkans, Carpathians) and contrasting cytotype patterns (diploid, diploid-polyploid and polyploid species). Whereas diploid taxa (P. ullepitschii and P. serbica) reproduce sexually, the mode of...

Université de Fribourg

A taxonomic revision of the Pilosella alpicola group in the Carpathians

Šingliarová, Barbora ; Mráz, Patrik

In: Preslia, 2009, vol. 81, p. 23-41

A taxonomic study of the Pilosella alpicola group growing in the Carpathians revealed the presence of two morphologically distinguishable taxa: P. ullepitschii (Błocki) Szeląg and P. rhodopea (Griseb.) Szeląg. While P. ullepitschii is endemic to the Carpathians, P. rhodopea is a Balkan subendemic with two isolated localities in the Southern Carpathians (Mt Cozia and Mt Zmeuretu). The core area...

Université de Fribourg

Loss of genetic diversity in isolated populations of an alpine endemic Pilosella alpicola subsp. ullepitschii : effect of long-term vicariance or long-distance

Šingliarová, B. ; Chrtek, J. ; Mráz, Patrik

In: Plant Systematics and Evolution, 2008, vol. 275, no. 3-4, p. 181-191

Pilosella alpicola subsp. ullepitschii (Asteraceae) is a strictly allogamous, diploid Carpathian endemic. Its distribution range comprises two areas separated by about 600 km. While in the Western Carpathians (Slovakia and Poland) the taxon occurs in numerous sites, only four localities of man-made origin are known from the Eastern and Southern Carpathians (Romania). We used allozyme markers to...