Conservation methods of Czech gene pool of whitebeams
The whitebeam (Sorbus sp.) is the only representative of endemic trees occurring in the Czech Republic. A study was focused on four apomictic species discovered and newly described only recently: Sorbus gemella, S. omissa and S. kitaibeliana from the S. latifolia complex (aggregate), and S. abscondita from the S. hybrida complex (aggregate). The aim of the project was to develop a set of procedures for the protection of selected endemic whitebeams in their unique natural habitats in the Czech Republic. The subject of this study were: a) assessment of the current status of existing localities (number of individuals, habitat and vegetation conditions, degree of disturbance and threats); b) compilation of detailed geographic maps of taxa distribution with occurrences of all known individuals of these taxa including basic dendrometric data; c) evaluation of intrapopulation and interpopulation genetic variation and estimation of the parentage using molecular markers; d) determination of conditions of the in vitro propagation (composition of the medium, conditions of cultivation and acclimatization) and generative propagation (seed treatment, composition of substrates and germination conditions); e) extending the existing Sorbus collection in the Dendrological Garden of VÚKOZ. The project is in the first year of the solution.
Šedivá, J., Businský, R., Pospíšková, M., Velebil, J., Drahošová, H. and Zýka, V. (2021). Conservation methods of Czech gene pool of whitebeams. Acta Hortic. 1324, 41-46
Sorbus, endemic species, distribution, genetic variability, microsatellite, initiation, micropropagation, gene pool conservation