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Beyond the Symbiodiniaceae: diversity and role of microeukaryotic coral symbionts
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2023
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Source: Coral Reefs, 42(2), 567-577
[PDF-710.38 KB]
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Journal Title:Coral Reefs
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Description:Many corals form intimate symbioses with photosynthetic dinoflagellates in the family Symbiodiniaceae. These symbioses have been deeply studied, particularly in reef-forming corals. The complex microbial community that is associated with corals contains other members that have also been well characterized such as bacteria. However, our understanding of the coral holobiont and subsequently coral reef ecosystems is not complete if we do not take into consideration the microeukaryotes like protists and fungi. Microeukaryotes are currently the greatest enigma within the coral microbiome. Only a handful of them have been characterized, very few have been cultured and even less have genomes available. This is a reflection of a smaller community of scientists working on this particular group of organisms when compared with bacteria or Symbiodiniaceae, but also of the many technical challenges that we face when trying to study microeukaryotes. Recent advances in the use of metabarcoding are revealing the importance of microeukaryotes in corals in terms of abundance and presence, with notable examples being the green algae Ostreobium and the apicomplexans Corallicolidae. We believe that it is timely and necessary to present what we know so far about coral microeukaryotes before the expected flow of high-throughput metabarcoding studies exploring the microeukaryotic fraction of the coral microbiome.
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Source:Coral Reefs, 42(2), 567-577
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ISSN:0722-4028;1432-0975;
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Rights Information:CC BY
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