Massive introgression weakens boundaries between a regionally endemic allopolyploid and a widespread congener

0533713 - BÚ 2021 RIV DE eng J - Journal Article
Čertner, Martin - Kolář, Filip - Frajman, B. - Winkler, M. - Schönswetter, P.
Massive introgression weakens boundaries between a regionally endemic allopolyploid and a widespread congener.
Perspectives in Plant Ecology, Evolution and Systematics. Roč. 42, FEB (2020), s. 1-10, č. článku 125502. ISSN 1433-8319. E-ISSN 1433-8319
Institutional support: RVO:67985939
Keywords : allopolyploidy * biodiversity conservation * introgressive hybridisation
OECD category: Plant sciences, botany
Impact factor: 3.634, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.ppees.2019.125502

Using flow cytometry and molecular markers, we reconstructed the origin and evolutionary history of tetraploid Knautia norica, plant species endemic to the eastern Central Alps in Austria. Our data support its origin via allopolyploidisation from two parental diploids – K. carinthiaca, endemic to a single mountain slope, and widespread K. arvensis. The allopolyploid derivative exhibits greater evolutionary success compared with its stenoendemic progenitor K. carinthiaca. There is strong evidence for recent massive introgression of morphologically divergent K. drymeia into K. norica, which might present a threat to the long-term persistence of the latter species due to genetic erosion.
Permanent Link: http://hdl.handle.net/11104/0314874