Abstract：
:Molecular characterization of the coral host and the microbial assemblages associated with it (referred to as the coral holobiont) is currently undertaken via marker gene sequencing. This requires bulky instruments and controlled laboratory conditions which are impractical for environmental experiments in remote areas. Recent advances in sequencing technologies now permit rapid sequencing in the field; however, development of specific protocols and pipelines for the effective processing of complex microbial systems are currently lacking. Here, we used a combination of 3 marker genes targeting the coral animal host, its symbiotic alga, and the associated bacterial microbiome to characterize 60 coral colonies collected and processed in situ, during the Tara Pacific expedition. We used Oxford Nanopore Technologies to sequence marker gene amplicons and developed bioinformatics pipelines to analyze nanopore reads on a laptop, obtaining results in less than 24 h. Reef scale network analysis of coral-associated bacteria reveals broadly distributed taxa, as well as host-specific associations. Protocols and tools used in this work may be applicable for rapid coral holobiont surveys, immediate adaptation of sampling strategy in the field, and to make informed and timely decisions in the context of the current challenges affecting coral reefs worldwide.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Carradec Q,Poulain J,Boissin E,Hume BCC,Voolstra CR,Ziegler M,Engelen S,Cruaud C,Planes S,Wincker Pdoi
10.1038/s41598-020-72589-0subject
Has Abstractpub_date
2020-09-28 00:00:00pages
15893issue
1issn
2045-2322pii
10.1038/s41598-020-72589-0journal_volume
10pub_type
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