An orphaned clone of Potamogeton ×schreberi in the Czech Republic

0332066 - BÚ 2010 RIV CZ eng J - Journal Article
Kaplan, Zdeněk - Fehrer, Judith
An orphaned clone of Potamogeton ×schreberi in the Czech Republic.
Preslia. Roč. 81, č. 4 (2009), s. 387-397. ISSN 0032-7786. E-ISSN 0032-7786
R&D Projects: GA ČR GA206/09/0291; GA ČR GA206/07/0706
Institutional research plan: CEZ:AV0Z60050516
Keywords : Potamogeton * hybridization * taxonomy
Subject RIV: EF - Botanics
Impact factor: 2.638, year: 2009
http://www.preslia.cz/P094Kaplan.pdf

A Potamogeton hybrid found growing in the absence of parental species in a South Bohemian stream, Czech Republic, was subjected to molecular analyses to identify its exact identity. RFLP of the ITS region confirmed its previous morphological identification as P. natans × P. nodosus (= P. ×schreberi). A comparison of its RFLP pattern with those of P. gramineus, P. lucens and P. polygonifolius unambiguously excluded the possibility that the investigated plants are specimens of other similar hybrids (P. ×fluitans, P. ×sparganiifolius, P. ×gessnacensis). The discovery of P. ×schreberi in South Bohemia is the first record of this hybrid for the Czech Republic. So far, it is known only from five countries and the Czech clone is one of a few extant clones of this hybrid in Central Europe. Chloroplast DNA sequencing identified P. nodosus as the maternal parent although at present this species neither occurs at the locality, nor upstream, nor in the entire drainage basin.
Permanent Link: http://hdl.handle.net/11104/0177417