A genomic view of the reef-building coral Porites lutea and its microbial symbionts

生物 珊瑚 珊瑚礁 生态学 暗礁 滨珊瑚
作者
Steven J. Robbins,Caitlin M. Singleton,Cheong Xin Chan,Lauren F. Messer,Aileen U. Geers,Hua Ying,Alexander Baker,Sara C. Bell,Kathleen M. Morrow,Mark A. Ragan,David J. Miller,Sylvain Forêt,Eldon E. Ball,Roger Beeden,Michael L. Berumen,Manuel Aranda,Timothy Ravasi,Pim Bongaerts,Ove Hoegh‐Guldberg,Ira Cooke,Bill Leggat,Susan Sprungala,Anna Fitzgerald,Catherine A. Shang,Petra Lundgren,Theresa Fyffe,Francesco Rubino,Madeleine J. H. van Oppen,Karen D. Weynberg,Steven J. Robbins,Caitlin M. Singleton,Cheong Xin Chan,Lauren F. Messer,Aileen U. Geers,Hua Ying,Alexander Baker,Sara C. Bell,Kathleen M. Morrow,Mark A. Ragan,David J. Miller,Sylvain Forêt,Christian R. Voolstra,Gene W. Tyson,David G. Bourne,Christian R. Voolstra,Gene W. Tyson,David G. Bourne
出处
期刊:Nature microbiology 卷期号:4 (12): 2090-2100 被引量:214
标识
DOI:10.1038/s41564-019-0532-4
摘要

Corals and the reef ecosystems that they support are in global decline due to increasing anthropogenic pressures such as climate change1. However, effective reef conservation strategies are hampered by a limited mechanistic understanding of coral biology and the functional roles of the diverse microbial communities that underpin coral health2,3. Here, we present an integrated genomic characterization of the coral species Porites lutea and its microbial partners. High-quality genomes were recovered from P. lutea, as well as a metagenome-assembled Cladocopium C15 (the dinoflagellate symbiont) and 52 bacterial and archaeal populations. Comparative genomic analysis revealed that many of the bacterial and archaeal genomes encode motifs that may be involved in maintaining association with the coral host and in supplying fixed carbon, B-vitamins and amino acids to their eukaryotic partners. Furthermore, mechanisms for ammonia, urea, nitrate, dimethylsulfoniopropionate and taurine transformation were identified that interlink members of the holobiont and may be important for nutrient acquisition and retention in oligotrophic waters. Our findings demonstrate the critical and diverse roles that microorganisms play within the coral holobiont and underscore the need to consider all of the components of the holobiont if we are to effectively inform reef conservation strategies.
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