Analyses of hybrid viability across a hybrid zone between two Alnus species using microsatellites and cpDNA markers.

0532905 - BÚ 2021 RIV CH eng J - Journal Article
Šmíd, J. - Douda, J. - Krak, Karol - Mandák, Bohumil
Analyses of hybrid viability across a hybrid zone between two Alnus species using microsatellites and cpDNA markers.
Genes. Roč. 11, č. 7 (2020), s. 1-18, č. článku 770. E-ISSN 2073-4425
Institutional support: RVO:67985939
Keywords : microsatellites * polyploidy * tension zone
OECD category: Plant sciences, botany
Impact factor: 4.096, year: 2020
Method of publishing: Open access
https://doi.org/10.3390/genes11070770

Diploid Alnus glutinosa s. str. and autotetraploid A. rohlenae form a narrow hybrid zone in a study area in southern Serbia, which results in triploid hybrid formation. The tension zone model seems to offer the most adequate explanation of our observations, with selection against triploid hybrids and the spatial positioning of the hybrid zone. Despite selection against them, the triploid hybrids play an important role in the exchange of genes between the two species and therefore serve as a bridge for introgression. The presence of fertile triploids is essential for enriching the haplotype diversity between these species and for the development of new genetic lineages.
Permanent Link: http://hdl.handle.net/11104/0314053