| Kevin Karbstein | |||||||||
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| Curriculum vitae |
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10/2021 – present Research assistant (PostDoc) at the Albrecht-von-Haller-Institute for Plant Science, Department of Systematics, Biodiversity and 10/2014 – 09/2017 Master of Science in Evolution, Ecology and Systematics, Institute of Systematic Botany with Herbarium Haussknecht and 08/2016 – 09/2017 Research assistant at the Max-Planck-Institute of Human History, Jena, Germany. 10/2015 – 03/2016 Internship and following working contracts at the 'Forstliche Forschungs- and Kompetenzzentrum (FFK)', Gotha, Germany. 10/2011 – 09/2014 Bachelor of Science Biology, Institute of Systematic Botany with Herbarium Haussknecht and Botanical Garden, 06/2011 Abitur Gustav-Freytag-Gymnasium Gotha, Thuringia, Germany
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| Research Project |
Polyploidy and hybridization are important processes in plant evolution, and often are connected to reproduction via asexually formed seed (apomixis). Apomictic polyploid complexes usually comprise a few sexual progenitor species, and numerous apomictic hybrid derivatives. In apomictic lineages, the lack of recombination and cross-fertilization can eventually result in numerous clonal hybrid lineages, which can fix certain morphological and ecological traits. However, facultative sexuality and crossings between lineages results in the formation of numerous morphological phenotypes (agamospecies) without regarding any evolutionary or genetic background. Adequate species concepts for apomictic plants are still under debate, but have remarkable influence on biodiversity estimations. To overcome the solely descriptive and impracticable classification of ill-founded ”morphotypes”, the project is aiming at a classification of apomictic lineages based on evolutionary concepts that are better comparable to sexual plant species. We analyze the Eurasian Ranunculus auricomus complex, a group comprising a handful of sexual species and more than 800 described agamospecies, by using a combination of different innovative methods: (1) Restriction site-associated DNA sequencing (RAD-seq), SNP mining and network-analyses are powerful tools for delimitation of closely related taxa and to test for origins and genetic coherence of described morphotypes; (2) target enrichment of nuclear genes combined to plastid genome skimming (Hyb-Seq) using coalescent approaches can resolve phylogenetic relationships of sexual and hybrid species; (3) ploidy screenings via flow cytometry detected new, undescribed diploid species, and will enable us to determine degree of facultative sexuality via flow cytometric seed screening (FCSS); and (4) geometric morphometrics of leaf shape and fruit characters and multivariate statistical analysis can objectively assess morphological differentiation and diversity. |
| Research Interests |
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| Publications |
Karbstein K, Hodač L, Tomasello S, Hörandl E. Morphological versus genomic patterns and taxonomic implications in the Ranunculus auricomus complex. In prep. Karbstein K, Tomasello S, Wagner N, Barke BH, Pätzold C, Bradican JP, Preick M, Abelt S, Hofreiter M, Iker I, Vries J, Hörandl E. Cheap and efficient assembly of the large diploid Ranunculus auricomus plant genome using Illumina and ONT sequencing. In prep. Karbstein K, Gockel S, Profft I. Praxisrelevante Merkmale zur Identifizierung von autochthonen Hochlagenfichtentypen (Picea abies (L.) KARST.) im Thüringer Wald. In prep. Karbstein K, Tomasello S, Hodač L, Wagner N, Marincek P, Barke BH, Pätzold C, Hörandl E. Untying Gordian knots: Unraveling reticulate polyploid evolution by RRS genomic data using the large Ranunculus auricomus species complex. New Phytologist, 2022;00;1-86. https://doi.org/10.1111/nph.18284; https://doi.org/10.1101/2021.08.30.458250 Karbstein K. Untying Gordian knots - The evolution and biogeography of the large European apomictic polyploid Ranunculus auricomus plant complex. Dissertation, University of Göttingen, 2021; 1-475. http://hdl.handle.net/21.11130/00-1735-0000-0008-5946-6 Karbstein K, Tomasello S, Hodač L, Wagner N, Marincek P, Barke BH, Pätzold C, Hörandl E. Tracing evolutionary origins of polyploid plant complexes by phylogenomics. BioRxiv, 2021; 1-86. https://doi.org/10.1101/2021.08.30.458250 Karbstein K, Tomasello S, Hodač L, Lorberg E, Daubert M, Hörandl E. Moving beyond assumptions: polyploidy and environmental effects explain a geographic parthenogenesis scenario in European plants. Molecular Ecology, 2021;30; 2659-2675. https://doi.org/10.1111/mec.15919 Karbstein K, Gockel S, Frischbier N, Kahlert K, Konnert, M, Profft I. 'High-altitude spruces' in Central Europe - a summarizing contribution to phenotypic and (epi)genetic differentiation within Picea abies (L.) H.KARST. Allgemeine Forst- und Jagdzeitschrift (AFJZ), 2021;9/10; 197-211. https://doi.org/10.23765/afjz0002068 Strecker T, Jesch A, Bachmann D, Jüds M, Karbstein K, Ravenek J, Roscher, C, Weigelt A, Eisenhauer N, Scheu S. Incorporation of mineral nitrogen into the soil food web as affected by plant community composition. Ecology and Evolution, 2021;11;4295-4309. https://doi.org/10.1002/ece3.7325 Karbstein K, Rahmsdorf E, Tomasello S, Hodač L, Hörandl E. Breeding system of diploid sexuals within the Ranunculus auricomus complex and its role in a geographical parthenogenesis scenario. Ecology and Evolution 2020;10;14435-14450. https://doi.org/10.1002/ece3.7073 Barke BH, Karbstein K, Daubert M, Hörandl E. The relation of meiotic behaviour to hybridity, polyploidy and apomixis in the Ranunculus auricomus complex (Ranunculaceae). BMC Plant Biology 2020;20;523. https://doi.org/10.1186/s12870-020-02654-3 Karbstein K, Tomasello S, Hodač L, Dunkel FG, Daubert M, Hörandl E. Phylogenomics supported by geometric morphometrics reveals delimitation of sexual species within the polyploid apomictic Ranunculus auricomus complex (Ranunculaceae). Taxon 2020;69;1191-1220. Tomasello S, Karbstein K, Hodač L, Pätzold C, Hörandl E. Phylogenomics unravels Quarternary vicariance and allopatric speciation patterns in temperate-montane plant species: a case study on the Ranunculus auricomus species complex. Molecular Ecology 2020;29;2031-2049. https://doi.org/10.1111/mec.15458; https://doi.org/10.1101/2020.01.06.895904 Karbstein, K, Prinz, K., Hellwig, F., Römermann, C. Plant intraspecific functional trait variation is related to within-habitat heterogeneity and genetic diversity in Trifolium montanum L. Ecology and Evolution 2020;10:5015-5033. https://doi.org/10.1002/ece3.6255 Karbstein K, Tomasello S, Prinz K. Desert-like badlands and surrounding (semi-)dry grasslands of Central Germany promote small-scale phenotypic and genetic differentiation in Thymus praecox. Ecology and Evolution 2019;9:14066–14084. https://doi.org/10.1002/ece3.5844 |
| National and international activities |
- Editor for scientific journals:
- Reviewer for scientific journals:
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| Conferences, Workshops & Defenses |
08.2022 “DBG Conference 2022“, Bonn (Germany), talk (Ranunculus auricomus), financially supported by Universitätsbund Göttingen e.V. https://t3-1.conventus-hetzner.de/fileadmin/congress/media/botaniker2022/pdf/Botaniker_2022_Programm.pdf 07.2022 “BOTANY 2022“, Anchorage, Alaska (USA), Online-Talk (Ranunculus auricomus) https://www.botanyconference.org/engine/search/index.php?func=detail&aid=55
09.2019 “TaxonOmics Workshop Bioinformatics for RADSeq data“, Göttingen (Germany), organization, talks, and practical courses 02.2019 “The background and application of ddRAD“, Mainz (Germany), talk and practical course 02.2018 “3rd Annual Meeting in Conservation Genetics”, Vienna (Austria), talk (Trifolium montanum) 02.2017 “Schutz bedrohter Pflanzenarten in Mitteleuropa“, Berlin (Germany), poster presentation (Thymus praecox)
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| Memberships |
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