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The genomic timeline of cichlid fish diversification across continents

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  • Michael Matschiner

    (University of Basel
    University of Zurich
    University of Oslo)

  • Astrid Böhne

    (University of Basel
    Zoological Research Museum Alexander Koenig)

  • Fabrizia Ronco

    (University of Basel)

  • Walter Salzburger

    (University of Basel
    University of Oslo)

Abstract

Cichlid fishes are celebrated for their vast taxonomic, phenotypic, and ecological diversity; however, a central aspect of their evolution — the timeline of their diversification — remains contentious. Here, we generate draft genome assemblies of 14 species representing the global cichlid diversity and integrate these into a new phylogenomic hypothesis of cichlid and teleost evolution that we time-calibrate with 58 re-evaluated fossil constraints and a new Bayesian model accounting for fossil-assignment uncertainty. Our results support cichlid diversification long after the breakup of the supercontinent Gondwana and lay the foundation for precise temporal reconstructions of the exceptional continental cichlid adaptive radiations.

Suggested Citation

  • Michael Matschiner & Astrid Böhne & Fabrizia Ronco & Walter Salzburger, 2020. "The genomic timeline of cichlid fish diversification across continents," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17827-9
    DOI: 10.1038/s41467-020-17827-9
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