Molecular diversity and assemblages of coral symbionts (Symbiodiniaceae) in diverse scleractinian coral species

Lee, Li Keat and Leaw, Chui Pin and Lee, Li Chuen and Lim, Zhen Fei and Hii, Kieng Soon and Chan, Albert Apollo and Gu, Haifeng and Lim, Po Teen (2022) Molecular diversity and assemblages of coral symbionts (Symbiodiniaceae) in diverse scleractinian coral species. Marine Environmental Research, 179. ISSN 0141-1136, DOI

Full text not available from this repository.


The scleractinian coral-associated symbiotic algae Symbiodiniaceae plays an important role in bleaching tolerance and coral resilience. In this study, coral-associated Symbiodiniaceae communities of 14 reef sites of Perhentian and Redang Islands Marine Parks (Malaysia, South China Sea) were characterized using the high-throughput next-generation amplicon sequencing on the ITS2 rDNA marker to inventory the Symbiodiniaceae diversity from a healthy tropical reef system and to generate a baseline for future studies. A total of 64 coral-Symbiodiniaceae associations were characterized in 18 genera (10 families) of scleractinian corals using the SymPortal analytical framework. The results revealed the predominance of Symbiodiniaceae genera Cladocopium (average 82%) and Durusdinium (18%), while Symbiodinium, Breviolum, Fugacium, and Gerakladium were found as minor groups (<0.01%). Of the 39 Cladocopium and Durusdinium major ITS2 sequences, 14 were considered dominant/sub-dominant, with C3u as the predominant type (63.3%), followed by Dl (15%), C27 (10.1%), and C15 (6.9%). A total of 19 and 13 Cladocopium and Durusdinium IT52-type profiles were detected across the coral species, respectively. Symbiodiniaceae diversity and richness recorded in this study were higher when compared to other reefs in the proximity. With the increasing coral-Symbiodiniaceae associations archived, the database would provide a baseline to assess the changes of Symbiodiniaceae communities in the coral hosts and to explore the potential adaptive roles of this coral-algal association.

Item Type: Article
Funders: Malaysia Ministry of Higher Education (MOHE) Fundamental Research Grant Scheme [FRGS/1/2019/WAB09/UM/02/3], MOHE Long-term Research Grant Scheme [LRGS/1/2020/UMT/01/1/3], HICoE [IOES-2014C], MOHE Fundamental Research Grant Scheme [FRGS/1/2019/WAB13/UM/02/2], China-ASEAN Maritime Cooperation Fund [2016YFE0202100]
Uncontrolled Keywords: Coral reef; ITS2; Malaysia; Scleractinia; Symbiodiniaceae; SymPortal
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 22 Sep 2023 02:45
Last Modified: 22 Sep 2023 02:45

Actions (login required)

View Item View Item