Sabine S Jakob
- The considerable genome size variation of Hordeum species (poaceae) is linked to phylogeny, life form, ecology, and speciation ratesSabine S Jakob
Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany
Mol Biol Evol 21:860-9. 2004..e., for species groups or the entire genus), environmental correlations were absent. This could mostly be attributed to the superimposition of life-form changes and phylogenetic constraints, which conceal ecogeographical correlations...
- A chloroplast genealogy of hordeum (poaceae): Long-term persisting haplotypes, incomplete lineage sorting, regional extinction, and the consequences for phylogenetic inferenceSabine S Jakob
Leibniz Institute of Plant Genetics and Crop Science IPK, D 06466 Gatersleben, Germany
Mol Biol Evol 23:1602-12. 2006..We conclude that the described phenomena are not restricted to Hordeum and that the knowledge of the chloroplast relationships within a genus is indispensable to prevent misinterpretation of phylogeographic data within single species...
- Combined ecological niche modelling and molecular phylogeography revealed the evolutionary history of Hordeum marinum (Poaceae)--niche differentiation, loss of genetic diversity, and speciation in Mediterranean Quaternary refugiaSabine S Jakob
Leibniz Institute of Plant Genetics and Crop Sciences IPK, Corrensstr 3, D 06466 Gatersleben, Germany
Mol Ecol 16:1713-27. 2007..The extant sympatric occurrence of H. marinum and H. gussoneanum 2x in the Mediterranean region is interpreted as a result of secondary contact after fast Holocene range expansion out of different ice age refugia...
- Phylogeographic analyses and paleodistribution modeling indicate pleistocene in situ survival of Hordeum species (Poaceae) in southern Patagonia without genetic or spatial restrictionSabine S Jakob
Leibniz Institute of Plant Genetics and Crop Research IPK, Gatersleben, Germany
Mol Biol Evol 26:907-23. 2009..As the Hordeum species are characteristic taxa of different steppe habitats, we speculate that the Patagonian steppe might be an old vegetation unit occurring for up to 4.5 My in southern South America...
- Population demography influences climatic niche evolution: evidence from diploid American Hordeum species (Poaceae)Sabine S Jakob
Leibniz Institute of Plant Genetics and Crop Research IPK, Corrensstr 3, D 06466 Gatersleben, Germany
Mol Ecol 19:1423-38. 2010..Our data allow the conclusion that population demography influences adaptation and niche shifts or conservatism in South American Hordeum species...
- Two extinct diploid progenitors were involved in allopolyploid formation in the Hordeum murinum (Poaceae: Triticeae) taxon complexSabine S Jakob
Leibniz Institute of Plant Genetics and Crop Research IPK, D 06466 Gatersleben, Germany
Mol Phylogenet Evol 55:650-9. 2010..murinum. None of the used molecular markers revealed a strong geographic pattern of genetic variation that would allow comprehensive phylogeographic analysis, most probably due to the very effective seed dispersal of the taxa...
- Progenitor-derivative relationships of Hordeum polyploids (Poaceae, Triticeae) inferred from sequences of TOPO6, a nuclear low-copy gene regionJonathan Brassac
Taxonomy and Evolutionary Biology, Leibniz Institute of Plant Genetics and Crop Research, IPK, Gatersleben, Germany
PLoS ONE 7:e33808. 2012..The use of a proof-reading DNA polymerase in PCR reduced the proportion of chimerical sequences in polyploids in comparison to Taq polymerase...