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Reply to "Re-evaluating the evidence for facilitation of stickleback speciation by admixture in the Lake Constance basin"
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Advisor(s)
Abstract(s)
A Matters Arising article1 raised concerns about the
interpretation of our findings reported in our recent
publication on admixture-facilitated ecological speciation
in Lake Constance stickleback2. After careful consideration of the
criticism, including additional analyses testing the proposed
alternative hypotheses, we can confirm our confidence in the
inference of secondary contact between a West European and an
East European stickleback lineage in the catchment of Lake
Constance, and that this admixture facilitated the ecological
divergence between lake and stream ecotypes within Lake
Constance2.
In particular, Berner1 (i) questioned whether West and East
European stickleback populations should be considered as
divergent lineages, (ii) suggested that Lake Constance stickleback
originated from the upper Danube instead of East Europe, (iii)
questioned the suitability of our demographic modelling
approach to reject an ‘ecological vicariance’ scenario, (iv) proposed that divergent selection within Lake Constance biased our
inference of a secondary contact and admixture scenario, and (v)
criticized our conclusion on admixture-facilitation of ecological
speciation as premature. We address each of these concerns in
this sequence.
Description
Keywords
Animals Gene Flow Lakes Microsatellite Repeats Smegmamorpha
Pedagogical Context
Citation
Marques, D.A., Lucek, K., Sousa, V.C. et al. Reply to “Re-evaluating the evidence for facilitation of stickleback speciation by admixture in the Lake Constance basin”. Nat Commun 12, 2807 (2021). https://doi.org/10.1038/s41467-021-23096-x
Publisher
Nature