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    Revisiting ancestral polyploidy in plants

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    Author
    Ruprecht, C; Lohaus, R; Vanneste, K; Mutwil, M; Nikoloski, Z; Van de Peer, Y; Persson, S
    Date
    2017-07-01
    Source Title
    Science Advances
    Publisher
    AMER ASSOC ADVANCEMENT SCIENCE
    University of Melbourne Author/s
    Persson, Hans
    Affiliation
    School of BioSciences
    Metadata
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    Document Type
    Journal Article
    Citations
    Ruprecht, C., Lohaus, R., Vanneste, K., Mutwil, M., Nikoloski, Z., Van de Peer, Y. & Persson, S. (2017). Revisiting ancestral polyploidy in plants. SCIENCE ADVANCES, 3 (7), https://doi.org/10.1126/sciadv.1603195.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/259626
    DOI
    10.1126/sciadv.1603195
    ARC Grant code
    ARC/FT160100218
    Abstract
    Whole-genome duplications (WGDs) or polyploidy events have been studied extensively in plants. In a now widely cited paper, Jiao et al. presented evidence for two ancient, ancestral plant WGDs predating the origin of flowering and seed plants, respectively. This finding was based primarily on a bimodal age distribution of gene duplication events obtained from molecular dating of almost 800 phylogenetic gene trees. We reanalyzed the phylogenomic data of Jiao et al. and found that the strong bimodality of the age distribution may be the result of technical and methodological issues and may hence not be a "true" signal of two WGD events. By using a state-of-the-art molecular dating algorithm, we demonstrate that the reported bimodal age distribution is not robust and should be interpreted with caution. Thus, there exists little evidence for two ancient WGDs in plants from phylogenomic dating.

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