Hybridization within a Pilosella population: a morphometric analysis

0429955 - BÚ 2015 RIV NL eng J - Článek v odborném periodiku
Urfus, Tomáš - Krahulec, František - Krahulcová, Anna
Hybridization within a Pilosella population: a morphometric analysis.
Folia Geobotanica. Roč. 49, č. 2 (2014), s. 223-238. ISSN 1211-9520. E-ISSN 1874-9348
Grant CEP: GA ČR GA206/08/0890
Výzkumný záměr: CEZ:AV0Z60050516
Institucionální podpora: RVO:67985939
Klíčová slova: hybridization * introgression * multivariate morphometrics
Kód oboru RIV: EF - Botanika
Impakt faktor: 1.778, rok: 2014

We traced hybridization processes taking place within a mixed population of Pilosella piloselloides subsp. bauhini and P. officinarum by means of a morphometric analysis of plants sampled in the field. Our results show that hybridization is frequent between the two taxa as well as between their two stabilized hybrids (P. brachiata and P. leptophyton). Plants utilizing three different modes of reproduction (sexual, facultatively apomictic and variable) participated in these hybridizations, Pilosella brachiata being the most important player. We identified several trends in progeny morphology, which evidently reflect different reproductive pathways, namely sexuality, apomixis and haploid parthenogenesis, occurring within the population under study. Introgression into sexual P. officinarum is commonplace.
Trvalý link: http://hdl.handle.net/11104/0234913