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Symbiodinium thermophilum symbionts in Porites harrisoni and Cyphastrea microphthalma in the northern Persian Gulf, Iran

Symbiodinium thermophilum symbionts in Porites harrisoni and Cyphastrea microphthalma in the northern Persian Gulf, Iran
Symbiodinium thermophilum symbionts in Porites harrisoni and Cyphastrea microphthalma in the northern Persian Gulf, Iran
Coral communities of the Persian Gulf (PG) withstand maximum and annual ranges of water temperatures that surpass those found on the majority of reefs elsewhere. As such, these communities may inform on how coral reefs might adapt to the warmer waters of the future. Depending on the algal symbiont (genus Symbiodinium) harboured, advantages in stress tolerance may be conferred to the coral holobiont. Characterizing the algal component is therefore critical in determining the coral holobiont's tolerance phenotype. Coral associations off the Arabian coastline of the PG have been characterized as biogeographically unique, containing a rare group of taxonomically ancestral and thermotolerant algal symbionts, the Symbiodinium thermophilum group. In contrast, waters off the Iranian coast remain poorly characterized with a notable lack of S. thermophilum group symbionts identified in coral associations to date. Here, we characterize the algal component of two reef building corals (Porites harrisoni and Cyphastrea microphthalma) predominant at three sites spanning almost the entire length of the PG's Iranian coast. Genotyping using the chloroplastic 23S and nuclear ITS2 genes, we demonstrate the presence of S. thermophilum group symbionts. We discuss the probable physical drivers of these associations and highlight the need for further research in these relatively understudied waters.
0025-3154
Varasteh, Tooba
3e34e4c6-3d0a-40b9-a2bb-a9b3e5717527
Shokri, Mohammad Reza
a23721fe-1a09-4b9f-bf05-f84b04d96cc1
Rajabi-Maham, Hassan
517c7f90-b4bf-4050-bb19-48001d8421cd
Behzadi, Safoura
0e5483a5-e5de-48e5-933a-1bf39a4ed783
Hume, Benjamin C.C.
ba5ae4b2-4e84-431c-985a-7c89cec5f976
Varasteh, Tooba
3e34e4c6-3d0a-40b9-a2bb-a9b3e5717527
Shokri, Mohammad Reza
a23721fe-1a09-4b9f-bf05-f84b04d96cc1
Rajabi-Maham, Hassan
517c7f90-b4bf-4050-bb19-48001d8421cd
Behzadi, Safoura
0e5483a5-e5de-48e5-933a-1bf39a4ed783
Hume, Benjamin C.C.
ba5ae4b2-4e84-431c-985a-7c89cec5f976

Varasteh, Tooba, Shokri, Mohammad Reza, Rajabi-Maham, Hassan, Behzadi, Safoura and Hume, Benjamin C.C. (2017) Symbiodinium thermophilum symbionts in Porites harrisoni and Cyphastrea microphthalma in the northern Persian Gulf, Iran. Journal of the Marine Biological Association of the United Kingdom. (doi:10.1017/S0025315417001746).

Record type: Article

Abstract

Coral communities of the Persian Gulf (PG) withstand maximum and annual ranges of water temperatures that surpass those found on the majority of reefs elsewhere. As such, these communities may inform on how coral reefs might adapt to the warmer waters of the future. Depending on the algal symbiont (genus Symbiodinium) harboured, advantages in stress tolerance may be conferred to the coral holobiont. Characterizing the algal component is therefore critical in determining the coral holobiont's tolerance phenotype. Coral associations off the Arabian coastline of the PG have been characterized as biogeographically unique, containing a rare group of taxonomically ancestral and thermotolerant algal symbionts, the Symbiodinium thermophilum group. In contrast, waters off the Iranian coast remain poorly characterized with a notable lack of S. thermophilum group symbionts identified in coral associations to date. Here, we characterize the algal component of two reef building corals (Porites harrisoni and Cyphastrea microphthalma) predominant at three sites spanning almost the entire length of the PG's Iranian coast. Genotyping using the chloroplastic 23S and nuclear ITS2 genes, we demonstrate the presence of S. thermophilum group symbionts. We discuss the probable physical drivers of these associations and highlight the need for further research in these relatively understudied waters.

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More information

Accepted/In Press date: 18 September 2017
e-pub ahead of print date: 26 October 2017

Identifiers

Local EPrints ID: 416344
URI: http://eprints.soton.ac.uk/id/eprint/416344
ISSN: 0025-3154
PURE UUID: 38dbe1f5-0a77-4cc4-861e-b68d5322dfab

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Date deposited: 13 Dec 2017 17:30
Last modified: 09 Jan 2022 08:48

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Contributors

Author: Tooba Varasteh
Author: Mohammad Reza Shokri
Author: Hassan Rajabi-Maham
Author: Safoura Behzadi
Author: Benjamin C.C. Hume

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