Staff

David Frei

About Me

My research interests are related to evolutionary genomics, speciation genomics and local adaptation. My project focuses on speciation and its genomic basis, as well as on speciation reversal in Alpine whitefish. During the last century, whitefish diversity within Swiss lakes decreased dramatically, probably due to cultural eutrophication of many Swiss lakes: Eutrophication decreased available ecological- and reproductive niche space and simultaneously induced speciation reversal of sympatric Alpine whitefish species. The whitefish species of Lake Constance are an ideal system to study the genomic consequences of adaptation, speciation and also its reversal, which hopefully will help to understand the evolutionary responses of evolutionary young species complexes to changing environments.

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Projects

Genome evolution and genomic divergence across the Swiss Alpine whitefish radiation

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Publications

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Frei, D.; De-Kayne, R.; Selz, O. M.; Seehausen, O.; Feulner, P. G. D. (2022) Genomic variation from an extinct species is retained in the extant radiation following speciation reversal, Nature Ecology & Evolution, 6, 461-468, doi:10.1038/s41559-022-01665-7, Institutional Repository
De‐Kayne, R.; Frei, D.; Greenway, R.; Mendes, S. L.; Retel, C.; Feulner, P. G. D. (2021) Sequencing platform shifts provide opportunities but pose challenges for combining genomic datasets, Molecular Ecology Resources, 21(3), 653-660, doi:10.1111/1755-0998.13309, Institutional Repository
van Rijssel, J. C.; Moser, F. N.; Frei, D.; Seehausen, O. (2018) Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids, Proceedings of the Royal Society B: Biological Sciences, 285(1871), 20172630 (10 pp.), doi:10.1098/rspb.2017.2630, Institutional Repository

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Address

E-Mail: david.frei@eawag.ch
Phone: +41 58 765 2276
Fax: +41 58 765 2168
Address: Eawag
Seestrasse 79
6047 Kastanienbaum
Office: CA B05

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Research Group

Fish Genomics

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Focalpoints

Evolutionary genomics

Ecological speciation

Speciation reversal

Extinction by hybridization

Whole-genome sequencing


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