Genomic release-recapture experiment in the wild reveals within-generation polygenic selection in stickleback fish

Laurentino, Telma G. and Moser, Dario and Roesti, Marius and Ammann, Matthias and Frey, Anja and Ronco, Fabrizia and Kueng, Benjamin and Berner, Daniel. (2020) Genomic release-recapture experiment in the wild reveals within-generation polygenic selection in stickleback fish. NATURE COMMUNICATIONS, 11 (1). ARTN 1928.

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/78143/

Downloads: Statistics Overview


How rapidly natural selection sorts genome-wide standing genetic variation during adaptation remains largely unstudied experimentally. Here, we present a genomic release-recapture experiment using paired threespine stickleback fish populations adapted to selectively different lake and stream habitats. First, we use pooled whole-genome sequence data from the original populations to identify hundreds of candidate genome regions likely under divergent selection between these habitats. Next, we generate F2 hybrids from the same lake-stream population pair in the laboratory and release thousands of juveniles into a natural stream habitat. Comparing the individuals surviving one year of stream selection to a reference sample of F2 hybrids allows us to detect frequency shifts across the candidate regions toward the genetic variants typical of the stream population-an experimental outcome consistent with polygenic directional selection. Our study reveals that adaptation in nature can be detected as a genome-wide signal over just a single generation. Empirical examples documenting the pace of adaptation across the whole genome in wild populations are scarce. Here the authors study wild stickleback populations from lake and stream habitats and show that there is a genome-wide signature of adaptation to stream habitats within just one generation.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Integrative Biologie > Evolutionary Biology (Salzburger)
UniBasel Contributors:Berner, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:24 Jan 2022 09:58
Deposited On:24 Jan 2022 09:58

Repository Staff Only: item control page