The Red Queen hypothesis and geographical parthenogenesis in the alpine hawkweed Hieracium alpinum (Asteraceae)

0486685 - BÚ 2018 RIV GB eng J - Journal Article
Hartmann, M. - Štefánek, M. - Zdvořák, P. - Heřman, P. - Chrtek, Jindřich - Mráz, P.
The Red Queen hypothesis and geographical parthenogenesis in the alpine hawkweed Hieracium alpinum (Asteraceae).
Biological Journal of the Linnean Society. Roč. 122, č. 4 (2017), s. 681-696. ISSN 0024-4066. E-ISSN 1095-8312
Institutional support: RVO:67985939
Keywords : apomixis * polyploidy * Red Queen hypothesis
OECD category: Plant sciences, botany
Impact factor: 2.532, year: 2017

Our results indicate no significant differences in frequency and intensity of seed predation nor in the level of interspecific plant–plant interactions between diploid sexual and triploid asexual populations. Furthermore, there were no consistent latitudinal and/or altitudinal patterns for the assessed parameters. Contrary to our expectations, there were either positive or non-significant associations between genetic diversity and the level of seed predation. To conclude, the RQH cannot thoroughly explain the GP in H. alpinum, and other alternative scenarios should be considered and tested.
Permanent Link: http://hdl.handle.net/11104/0283138