A unique diploid – triploid contact zone provides insights into the evolutionary mechanisms of cytotype coexistence in flowering rush (Butomus umbellatus)

0562692 - BÚ 2023 RIV DE eng J - Článek v odborném periodiku
Čertner, Martin - Rydlo, Jan - Dudáš, M. - Hroudová, Zdenka
A unique diploid – triploid contact zone provides insights into the evolutionary mechanisms of cytotype coexistence in flowering rush (Butomus umbellatus).
Perspectives in Plant Ecology, Evolution and Systematics. Roč. 54, MAR (2022), č. článku 125659. ISSN 1433-8319. E-ISSN 1433-8319
Institucionální podpora: RVO:67985939
Klíčová slova: cytotype distribution * flow cytometry * clonal propagation * ecological preferences * ploidy coexistence
Obor OECD: Plant sciences, botany
Impakt faktor: 3.6, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.ppees.2022.125659

Despite the common incidence of polyploidy in many plant groups, particular ecological and evolutionary mechanisms facilitating intraspecific cytotype coexistence have been identified for just a handful of species and cannot yet be generalised. Here, we revealed and documented a unique complex of mixed diploid-triploid populations of the marshland perennial Butomus umbellatus in the Eastern Slovak Lowland. Altogether 42% of the sampled populations were mixed-ploidy, pointing to unexpectedly high rates of diploid-triploid coexistence. No ecological niche differences between the cytotypes were detected. Both cytotypes exhibited high and comparable investments into clonal traits, and reproductive assurance provided by asexual reproduction likely plays a key role in cytotype coexistence and triploid predominance. The common cytotype coexistence in this region seems to be also facilitated by periodical seasonal floods promoting transport of vegetative propagules among populations and providing long-term continuity of favourable sites by recurrent disturbances.
Trvalý link: https://hdl.handle.net/11104/0336825