Biogeography and molecular diversity of coral symbionts in the genus Symbiodinium around the Arabian Peninsula

Maren Ziegler; Chatchanit Arif; John A. Burt; Sergey Dobretsov; Cornelia Roder; Todd C. LaJeunesse; Christian R. Voolstra

doi:10.1111/jbi.12913

journal article Open Access Jan 02, 2017

Biogeography and molecular diversity of coral symbionts in the genus Symbiodinium around the Arabian Peninsula

Maren Ziegler Chatchanit Arif John A. Burt

Sergey Dobretsov

Cornelia Roder

Todd C. LaJeunesse

Christian R. Voolstra

Journal of Biogeography Vol. 44 No. 3 pp. 674-686 · Wiley

View at Publisher Save 10.1111/jbi.12913

Abstract

AbstractAimCoral reefs rely on the symbiosis between scleractinian corals and intracellular, photosynthetic dinoflagellates of the genus Symbiodinium making the assessment of symbiont diversity critical to our understanding of ecological resilience of these ecosystems. This study characterizes Symbiodinium diversity around the Arabian Peninsula, which contains some of the most thermally diverse and understudied reefs on Earth.LocationShallow water coral reefs throughout the Red Sea (RS), Sea of Oman (SO), and Persian/Arabian Gulf (PAG).MethodsNext‐generation sequencing of the ITS2 marker gene was used to assess Symbiodinium community composition and diversity comprising 892 samples from 46 hard and soft coral genera.ResultsCorals were associated with a large diversity of Symbiodinium, which usually consisted of one or two prevalent symbiont types and many types at low abundance. Symbiodinium communities were strongly structured according to geographical region and to a lesser extent by coral host identity. Overall symbiont communities were composed primarily of species from clade A and C in the RS, clade A, C, and D in the SO, and clade C and D in the PAG, representing a gradual shift from C‐ to D‐dominated coral hosts. The analysis of symbiont diversity in an Operational Taxonomic Unit (OTU)‐based framework allowed the identification of differences in symbiont taxon richness over geographical regions and host genera.Main conclusionsOur study represents a comprehensive overview over biogeography and molecular diversity of Symbiodinium in the Arabian Seas, where coral reefs thrive in one of the most extreme environmental settings on the planet. As such our data will serve as a baseline for further exploration into the effects of environmental change on host–symbiont pairings and the identification and ecological significance of Symbiodinium types from regions already experiencing ‘Future Ocean’ conditions.

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Details

Published: Jan 02, 2017
Vol/Issue: 44(3)
Pages: 674-686
License: View

Authors

M

Maren Ziegler

Division of Biological and Environmental Science and Engineering (BESE) Red Sea Research Center King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia

C

Chatchanit Arif

Division of Biological and Environmental Science and Engineering (BESE) Red Sea Research Center King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia

J

John A. Burt

Center for Genomics and Systems Biology New York University Abu Dhabi Abu Dhabi United Arab Emirates

S

Sergey Dobretsov

Department of Marine Science and Fisheries College of Agricultural and Marine Sciences Sultan Qaboos University Muscat Oman

C

Cornelia Roder

Division of Biological and Environmental Science and Engineering (BESE) Red Sea Research Center King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia; Shelf Sea System Ecology Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Germany

T

Todd C. LaJeunesse

Department of Biology Pennsylvania State University University Park PA 16802 USA

C

Christian R. Voolstra

Division of Biological and Environmental Science and Engineering (BESE) Red Sea Research Center King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia

Cite This Article

Maren Ziegler, Chatchanit Arif, John A. Burt, et al. (2017). Biogeography and molecular diversity of coral symbionts in the genus Symbiodinium around the Arabian Peninsula. Journal of Biogeography, 44(3), 674-686. https://doi.org/10.1111/jbi.12913

Biogeography and molecular diversity of coral symbionts in the genus Symbiodinium around the Arabian Peninsula

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