TY - JOUR A1 - Childs, Liam H. A1 - Witucka-Wall, Hanna A1 - Guenther, Torsten A1 - Sulpice, Ronan A1 - Korff, Maria V. A1 - Stitt, Mark A1 - Walther, Dirk A1 - Schmid, Karl J. A1 - Altmann, Thomas T1 - Single feature polymorphism (SFP)-based selective sweep identification and association mapping of growth- related metabolic traits in Arabidopsis thaliana N2 - Background: Natural accessions of Arabidopsis thaliana are characterized by a high level of phenotypic variation that can be used to investigate the extent and mode of selection on the primary metabolic traits. A collection of 54 A. thaliana natural accession-derived lines were subjected to deep genotyping through Single Feature Polymorphism (SFP) detection via genomic DNA hybridization to Arabidopsis Tiling 1.0 Arrays for the detection of selective sweeps, and identification of associations between sweep regions and growth-related metabolic traits. Results: A total of 1,072,557 high-quality SFPs were detected and indications for 3,943 deletions and 1,007 duplications were obtained. A significantly lower than expected SFP frequency was observed in protein-, rRNA-, and tRNA-coding regions and in non- repetitive intergenic regions, while pseudogenes, transposons, and non-coding RNA genes are enriched with SFPs. Gene families involved in plant defence or in signalling were identified as highly polymorphic, while several other families including transcription factors are depleted of SFPs. 198 significant associations between metabolic genes and 9 metabolic and growth-related phenotypic traits were detected with annotation hinting at the nature of the relationship. Five significant selective sweep regions were also detected of which one associated significantly with a metabolic trait. Conclusions: We generated a high density polymorphism map for 54 A. thaliana accessions that highlights the variability of resistance genes across geographic ranges and used it to identify selective sweeps and associations between metabolic genes and metabolic phenotypes. Several associations show a clear biological relationship, while many remain requiring further investigation. Y1 - 2010 UR - http://www.biomedcentral.com/1471-2164/ U6 - https://doi.org/10.1186/1471-2164-11-188 SN - 1471-2164 ER - TY - JOUR A1 - Obu, Jaroslav A1 - Lantuit, Hugues A1 - Fritz, Michael A1 - Pollard, Wayne H. A1 - Sachs, Torsten A1 - Guenther, Frank T1 - Relation between planimetric and volumetric measurements of permafrost coast erosion: a case study from Herschel Island, western Canadian Arctic JF - Polar research : a Norwegian journal of Polar research N2 - Ice-rich permafrost coasts often undergo rapid erosion, which results in land loss and release of considerable amounts of sediment, organic carbon and nutrients, impacting the near-shore ecosystems. Because of the lack of volumetric erosion data, Arctic coastal erosion studies typically report on planimetric erosion. Our aim is to explore the relationship between planimetric and volumetric coastal erosion measurements and to update the coastal erosion rates on Herschel Island in the Canadian Arctic. We used high-resolution digital elevation models to compute sediment release and compare volumetric data to planimetric estimations of coastline movements digitized from satellite imagery. Our results show that volumetric erosion is locally less variable and likely corresponds better with environmental forcing than planimetric erosion. Average sediment release volumes are in the same range as sediment release volumes calculated from coastline movements combined with cliff height. However, the differences between these estimates are significant for small coastal sections. We attribute the differences between planimetric and volumetric coastal erosion measurements to mass wasting, which is abundant along the coasts of Herschel Island. The average recorded coastline retreat on Herschel Island was 0.68m a(-1) for the period 2000-2011. Erosion rates increased by more than 50% in comparison with the period 1970-2000, which is in accordance with a recently observed increase along the Alaskan Beaufort Sea. The estimated annual sediment release was 28.2 m(3) m(-1) with resulting fluxes of 590 kg C m(-1) and 104 kg N m(-1). KW - Coastal erosion KW - LiDAR KW - carbon fluxes KW - mass wasting KW - landslides KW - digital elevation model Y1 - 2016 U6 - https://doi.org/10.3402/polar.v35.30313 SN - 0800-0395 SN - 1751-8369 VL - 35 SP - 57 EP - 99 PB - Co-Action Publ. CY - Jarfalla ER - TY - JOUR A1 - Anklam, Elke A1 - Behler, Jörg A1 - Dingermann, Theodor A1 - Elsinghorst, Paul A1 - Fischer, Jochen A1 - Esselen, Melanie A1 - Foerster, Christian A1 - Fröhlich, Daniel A1 - Goedel, Werner Andreas A1 - Gregory, Peter A1 - Grimme, Stefan A1 - Hackenberger, Christian A1 - Hansmann, Max A1 - Heppekausen, Johannes A1 - Hasenstab-Riedel, Sebastian A1 - Kirchhoff, Erhard A1 - Kratz, Karl-Ludwig A1 - Krausz, Ferenc A1 - Linker, Torsten A1 - List, Benjamin A1 - Ray, Kallol A1 - Salzer, Reiner A1 - Schubert, Ulrich A1 - Schueth, Ferdi A1 - Schwarz, Helmut A1 - Schwietzke, Uta A1 - Strey, Reinhard A1 - Stumpf, Thorsten A1 - Vaagt, Franziska A1 - Volodkin, Dmitry A1 - Wilke, Guenther A1 - Zass, Engelbert A1 - Zemb, Thomas T1 - Awards JF - Nachrichten aus der Chemie : Zeitschrift der Gesellschaft Deutscher Chemiker Y1 - 2013 U6 - https://doi.org/10.1002/nadc.201390372 SN - 1439-9598 SN - 1868-0054 VL - 61 IS - 11 SP - 1145 EP - 1148 PB - Ges. Dt. Chemiker CY - Frankfurt, Main ER - TY - INPR A1 - Eymann, Torsten A1 - Kundisch, Dennis A1 - Recker, Jan A1 - Bernstein, Abraham A1 - Gebauer, Judith A1 - Guenther, Oliver A1 - Ketter, Wolfgang A1 - zur Muehlen, Michael A1 - Riemer, Kai T1 - Should I stay or should I go - The challenges and opportunities of moving between University systems T2 - Business & information systems engineering : the international journal of Wirtschaftsinformatik Y1 - 2014 U6 - https://doi.org/10.1007/s12599-014-0319-3 SN - 1867-0202 VL - 6 IS - 2 SP - 115 EP - 126 PB - Springer CY - Heidelberg ER -