Thermal regime and host clade, rather than geography, drive Symbiodinium and bacterial assemblages in the scleractinian coral Pocillopora damicornis sensu lato

Microbiome
Kelly Brener-RaffalliEve Toulza

Abstract

Although the term holobiont has been popularized in corals with the advent of the hologenome theory of evolution, the underlying concepts are still a matter of debate. Indeed, the relative contribution of host and environment and especially thermal regime in shaping the microbial communities should be examined carefully to evaluate the potential role of symbionts for holobiont adaptation in the context of global changes. We used the sessile, long-lived, symbiotic and environmentally sensitive reef-building coral Pocillopora damicornis to address these issues. We sampled Pocillopora damicornis colonies corresponding to two different mitochondrial lineages in different geographic areas displaying different thermal regimes: Djibouti, French Polynesia, New Caledonia, and Taiwan. The community composition of bacteria and the algal endosymbiont Symbiodinium were characterized using high-throughput sequencing of 16S rRNA gene and internal transcribed spacer, ITS2, respectively. Bacterial microbiota was very diverse with high prevalence of Endozoicomonas, Arcobacter, and Acinetobacter in all samples. While Symbiodinium sub-clade C1 was dominant in Taiwan and New Caledonia, D1 was dominant in Djibouti and French Polynesia. Moreover, we ...Continue Reading

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Citations

Jul 3, 2019·Nature Reviews. Microbiology·Madeleine J H van Oppen, Linda L Blackall
Nov 12, 2019·Environmental Microbiology·Katarina DamjanovicMadeleine J H van Oppen
Feb 13, 2020·Global Change Biology·Lauren I Howe-KerrAdrienne M S Correa
Jun 18, 2020·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Christian R Voolstra, Maren Ziegler
Feb 23, 2020·Frontiers in Microbiology·Camille HuotEve Toulza
Nov 20, 2018·Biological Reviews of the Cambridge Philosophical Society·Martina Prazeres, Willem Renema
Jan 13, 2019·Microbiome·Jean-Christophe SimonMarc-André Selosse
Sep 21, 2018·Frontiers in Microbiology·Camille ClerissiEve Toulza
Jan 26, 2021·Royal Society Open Science·Carolina Seas, Priscila Chaverri

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Datasets Mentioned

BETA
FATP6.1
2033564

Methods Mentioned

BETA
amplicon sequencing
PCR

Software Mentioned

rda
phyloseq R package
R
MEGA
MiSeq
SWARM
MAFFT
FastTree
blastn
R “ vegan

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