Taxonomic revision of Sorbus subgenus Aria occurring in the Czech Republic

0447619 - BÚ 2016 RIV CZ eng J - Článek v odborném periodiku
Lepší, M. - Lepší, P. - Koutecký, P. - Bílá, J. - Vít, Petr
Taxonomic revision of Sorbus subgenus Aria occurring in the Czech Republic.
Preslia. Roč. 87, č. 2 (2015), s. 109-162. ISSN 0032-7786. E-ISSN 0032-7786
Grant CEP: GA ČR GB14-36079G
Institucionální podpora: RVO:67985939
Klíčová slova: apomixis * DAPI flow cytometry * hybridization
Kód oboru RIV: EF - Botanika
Impakt faktor: 2.711, rok: 2015

Three new triploid species are described: S. cucullifera M. Lepší et P. Lepší from the Podyjí and Thaytal National Parks between the towns of Znojmo and Vranov nad Dyjí, and S. moravicaM. Lepší et P. Lepší and S. pontis-sataniM. Lepší et P. Lepší from the Moravian Karst area near the city of Brno. Tetraploid taxa include S. danubialis and two newly distinguished taxa: S. thayensisM.Lepší et P. Lepší and S. collina M. Lepší, P. Lepší et N.Meyer. Sorbus thayensis is endemic to the Podyjí and Thayatal National Parks and in a similar manner as a triploid species varies very little morphologically, which indicates that these polyploid taxa reproduce apomictically. All these new species are assumed to have originated from interbreeding between S. danubialis and S. aria. Detailed distribution maps for all stenoendemics, photographs of the type specimens and line drawings of all polyploid species known from the Czech Republic are presented.
Trvalý link: http://hdl.handle.net/11104/0249416