Reisch, Christoph and Poschlod, Peter and Wingender, Ruth (2003) Genetic variation of Saxifraga paniculata Mill. (Saxifragaceae): molecular evidence for glacial relict endemism in central Europe. BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 80 (1). pp. 11-21. ISSN 0024-4066, 1095-8312
Full text not available from this repository.Abstract
Saxifraga paniculata Mill. is an amphi-atlantic species that is widely distributed in the Alps but also occurs with disjunct populations in central Europe. These isolated populations are considered to be glacial relicts. In the study presented here, we analysed the genetic variation within and between populations of Saxifraga paniculata in central Europe to test whether the molecular data give evidence for the supposed relict endemism. We used RAPD analysis and the analysis of molecular variance (AMOVA) technique to investigate 30 populations of Saxifraga paniculata from different locations in central Europe and adjacent geographical areas. In the RAPD analysis, 319 fragments could be amplified of which 91.2% were polymorphic. The percentage of polymorphic bands within populations correlated significantly with population size, indicating a higher level of inbreeding in small populations. AMOVA revealed 43.60% of the variation within populations, only 15.45% between populations within locations, and 40.95% between locations. Genetic distance between locations (Phi(ST)) correlated significantly with the geographical distance between locations, giving evidence for geographical isolation. In an UPGMA cluster analysis, based on RAPD data, the populations were grouped together according to their location. The results exhibit a strong genetic differentiation which is obviously due to genetic drift in the isolated populations. Our study therefore gives evidence for glacial relict endemism of Saxifraga paniculata in central Europe. (C) 2003 The Linnean Society of London.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CONSERVATION GENETICS; MARGINAL POPULATIONS; RAPD PHYLOGEOGRAPHY; ARBITRARY PRIMERS; PLANT; DIVERSITY; ALPS; OPPOSITIFOLIA; VARIABILITY; SURVIVAL; AMOVA; fragmentation; glaciations; population genetics; RAPD analysis |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Ökologie und Naturschutzbiologie (Prof. Dr. Peter Poschlod) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Jul 2021 11:18 |
| Last Modified: | 28 Jul 2021 11:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38637 |
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