First Guatemalan record of natural hybridisation between Neotropical species of the Lady's Slipper orchid (Orchidaceae, Cypripedioideae)

0484944 - ÚVGZ 2019 RIV US eng J - Článek v odborném periodiku
Szlachetko, D. L. - Kolanowska, Marta - Müller, F. - Vannini, J. - Rojek, J. - Gorniak, M.
First Guatemalan record of natural hybridisation between Neotropical species of the Lady's Slipper orchid (Orchidaceae, Cypripedioideae).
PeerJ. Roč. 5, č. 12 (2017), č. článku e4162. ISSN 2167-8359. E-ISSN 2167-8359
Institucionální podpora: RVO:86652079
Klíčová slova: in-vitro * reproductive isolation * seed-germination * hybrid orchid * sample-size * dna * performance * nuclear * models * distributions * Cypripedium * Cypripediaceae * Hybridization * ENM analysis * Nuclear markers * Taxonomy * Irapeana
Obor OECD: Plant sciences, botany
Impakt faktor: 2.118, rok: 2017

The first natural hybrid in the section Irapeana of the orchid genus Cypripedium is described and illustrated based on Guatemalan material. A molecular evaluation of the discovery is provided. Specimens with intermediate flowers between C. irapeanum and C. dickinsonianum within ITS and Xdh sequences have the signal sequence of both these species. The analysis of plastid sequences indicated that the maternal line is C. irapeanurn. Information about the ecology, embryology and conservation status of the novelty is given, together with a distribution map of its parental species, C. irapeanum and C. dickinsonianum. A discussion of the hybridization between Cypripedium species is presented. The potential hybrid zones between the representatives of Cypripedium section Irapeana which were estimated based on the results of ecological niche modeling analysis are located in the Maya Highlands (C. dickinsonianum and C. irapeanum) and the eastern part of Southern Sierra Madre (C. molle and C. irapeanum). Moreover, all three Cypripedium species could inhabit Cordillera Neovolcanica according to the obtained models, however, it should be noticed that this region is well-distanced from the edges of the known geographical range of C. molle.
Trvalý link: http://hdl.handle.net/11104/0280058