Cytotype distribution patterns, ecological differentiation, and genetic structure in a diploid-tetraploid contact zone of Cardamine amara

0447523 - BÚ 2016 RIV US eng J - Journal Article
Zozomová-Lihová, J. - Malánová-Krásná, I. - Vít, Petr - Urfus, Tomáš - Senko, D. - Svitok, M. - Kempa, M. - Marhold, K.
Cytotype distribution patterns, ecological differentiation, and genetic structure in a diploid-tetraploid contact zone of Cardamine amara.
American Journal of Botany. Roč. 102, č. 8 (2015), s. 1380-1395. ISSN 0002-9122. E-ISSN 1537-2197
Institutional support: RVO:67985939
Keywords : contact zone * cytotype coexistence * microsatelites
Subject RIV: EF - Botanics
Impact factor: 2.811, year: 2015

We identified a relatively wide diploid–autotetraploid secondary contact zone for Cardamine amara located north of the Eastern Alps. Mixed ploidy populations, recorded for the first time in this species, were fairly abundant along the diploid–tetraploid borderline, and occasionally triploids were also detected there. The tetraploids were genetically differentiated from both the diploids and the modeled, in silico autotetraploid genotypes inferred from the present-day diploids from the studied populations. These patterns of genetic variation are in accordance with the assumed tetraploid origin and spread linked to past glaciations and with independent evolution in allopatry.
Permanent Link: http://hdl.handle.net/11104/0249390