P. Küpfer

Publications33
h-index23
Citations1,769
Highly Influential Citations146
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Phylogeny and biogeography of exacum (gentianaceae): a disjunctive distribution in the Indian ocean basin resulted from long distance dispersal and extensive radiation.
TLDR
The molecular dating analysis demonstrates that the radiation is too recent to be associated with the Gondwanan continental breakup, and Ancestral area reconstruction suggests that Exacum originated in Madagascar, and divergence dating suggests its origin was not before the Eocene.
Plastid and nuclear DNA markers reveal intricate relationships at subfamilial and tribal levels in the soapberry family (Sapindaceae).
Phylogeny and biogeography of Balsaminaceae inferred from ITS sequences
TLDR
The ITS phylogenies reveal that extant Impatiens species are of Southeast Asian origin, from where dispersals to boreal Eurasia and North America, to central Asia and eastern Europe via the Himalayas, and to India and Africa have occurred.
Genetic structure and evolution of Alpine polyploid complexes: Ranunculus kuepferi (Ranunculaceae) as a case study
TLDR
This study shows the contrasting role played by diploid lineages mostly restricted to persistent refugia and by tetraploids, whose dispersal abilities have permitted their range extension all over the previously glaciated Alpine area and throughout neighbouring mountain massifs.
Genetic diversity in widespread species is not congruent with species richness in alpine plant communities.
TLDR
This work tests whether the genetic and species levels of biodiversity co-vary, using a large-scale and multi-species approach and demonstrates that species richness and genetic diversity are not correlated.
Phylogeography of Pulsatilla vernalis (L.) Mill. (Ranunculaceae): chloroplast DNA reveals two evolutionary lineages across central Europe and Scandinavia
Aim  The aim of this study was to test hypotheses regarding some of the main phylogeographical patterns proposed for European plants, in particular the locations of glacial refugia, the post‐glacial…
History or ecology? Substrate type as a major driver of spatial genetic structure in Alpine plants.
TLDR
The relevance of particular ecological factors in shaping genetic patterns, which should be considered when modelling species projective distributions under climate change scenarios, are demonstrated.
Conflicting phylogenies of balsaminoid families and the polytomy in Ericales: combining data in a Bayesian framework.
Phylogeny and circumscription of Sapindaceae revisited: molecular sequence data, morphology and biogeography support recognition of a new family, Xanthoceraceae.
TLDR
The relationships of Xanthoceras are clarified based on phylogenetic analyses using a dataset encompassing nearly 3/4 of sapindaceous genera, comparing the results with information from morphology and biogeography, and support earlier suggestions that Harpullieae are polyphyletic.
High paraphyly of Swertia L. (Gentianaceae) in the Gentianella-lineage as revealed by nuclear and chloroplast DNA sequence variation
TLDR
The phylogeny suggested by the analysis of combined data sets defines Swertia as strongly paraphyletic in relation to the other genera, and taxonomic circumscriptions in the Swertiinae sensu Struwe et’al.
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