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    Symbiodinium genomes reveal adaptive evolution of functions related to coral-dinoflagellate symbiosis

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    Symbodium.pdf
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    Type
    Article
    Authors
    Liu, Huanle
    Stephens, Timothy G.
    González-Pech, Raúl A.
    Beltran, Victor H.
    Lapeyre, Bruno
    Bongaerts, Pim
    Cooke, Ira
    Aranda, Manuel cc
    Bourne, David G.
    Forêt, Sylvain
    Miller, David J.
    van Oppen, Madeleine J. H.
    Voolstra, Christian R. cc
    Ragan, Mark A.
    Chan, Cheong Xin
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Marine Science Program
    Red Sea Research Center (RSRC)
    Date
    2018-07-17
    Online Publication Date
    2018-07-17
    Print Publication Date
    2018-12
    Permanent link to this record
    http://hdl.handle.net/10754/630757
    
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    Abstract
    Symbiosis between dinoflagellates of the genus Symbiodinium and reef-building corals forms the trophic foundation of the world’s coral reef ecosystems. Here we present the first draft genome of Symbiodinium goreaui (Clade C, type C1: 1.03 Gbp), one of the most ubiquitous endosymbionts associated with corals, and an improved draft genome of Symbiodinium kawagutii (Clade F, strain CS-156: 1.05 Gbp) to further elucidate genomic signatures of this symbiosis. Comparative analysis of four available Symbiodinium genomes against other dinoflagellate genomes led to the identification of 2460 nuclear gene families (containing 5% of Symbiodinium genes) that show evidence of positive selection, including genes involved in photosynthesis, transmembrane ion transport, synthesis and modification of amino acids and glycoproteins, and stress response. Further, we identify extensive sets of genes for meiosis and response to light stress. These draft genomes provide a foundational resource for advancing our understanding of Symbiodinium biology and the coral-algal symbiosis.
    Citation
    Liu H, Stephens TG, González-Pech RA, Beltran VH, Lapeyre B, et al. (2018) Symbiodinium genomes reveal adaptive evolution of functions related to coral-dinoflagellate symbiosis. Communications Biology 1. Available: http://dx.doi.org/10.1038/s42003-018-0098-3.
    Sponsors
    We thank Todd LaJeunesse for information on the original isolation of S. kawagutii. H.L. was supported by an Australian Research Council grant (DP150101875) awarded to M.A.R. and C.X.C. T.G.S. is supported by an Australian Government Research Training Program Scholarship. R.A.G.-P. is supported by an International Postgraduate Research Scholarship and a University of Queensland Centenary Scholarship. This project was supported by the computational resources of the Australian National Computational Infrastructure (NCI) National Facility systems through the NCI Merit Allocation Scheme (Project d85) awarded to M.A.R. and C.X.C. The data used in this project were funded by the Great Barrier Reef Foundation’s Resilient Coral Reefs Successfully Adapting to Climate Change research and development program in collaboration with the Australian Government, Bioplatforms Australia through the National Collaborative Research Infrastructure Strategy (NCRIS), Rio Tinto and a family foundation. The authors also acknowledge the work done by the Reef Future Genomics (ReFuGe) 2020 Consortium. Access to data generated by the consortium can be accessed via reefgenomics.org. In memory of S.F., our friend and colleague who is sorely missed.
    Publisher
    Springer Nature
    Journal
    Communications Biology
    DOI
    10.1038/s42003-018-0098-3
    ae974a485f413a2113503eed53cd6c53
    10.1038/s42003-018-0098-3
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program

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