6533b85cfe1ef96bd12bd2bc
RESEARCH PRODUCT
Causes of the genetic architecture of south-west European high mountain disjuncts
Joachim W. KadereitMatthias KropfHans Peter Comessubject
Genetic diversitygeography.geographical_feature_categoryEcologybiologyEcologyPlant ScienceSaxifraga stellarisMassifbiology.organism_classificationSaxifraga oppositifoliaGenetic architectureHigh mountainGeographyVicarianceBiological dispersalEcology Evolution Behavior and Systematicsdescription
Background: Postglacial climatic warming in south-western Europe and the retreat of cold-adapted species into higher elevations, starting in the Sierra Nevada and proceeding northwards to the Pyrenees and Alps, should have resulted in a pattern of ‘successive vicariance’. Alternatively, long-distance dispersal might explain the extant distribution pattern of mountain species in this region. Aims: Here, we report an investigation of two alpine plants, Saxifraga oppositifolia and S. stellaris, which co-occur in the Sierra Nevada, the Pyrenees, and the south-western Alps/Massif Central. Our aim was to distinguish between (successive) vicariance and long-distance dispersal as alternative explanations for their present-day geographical distribution across these high mountain ranges. The patterns found in these two species were compared to those of four other mountain species previously studied by us. Methods: Samples of 378 individuals from 21 populations were surveyed for amplified fragment length polymorphis...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-11-24 | Plant Ecology & Diversity |