Please use this identifier to cite or link to this item: http://repositorio.ufc.br/handle/riufc/63517
Type: Artigo de Periódico
Title: Symbiodinium diversity associated with zoanthids (Cnidaria: Hexacorallia) in Northeastern Brazil
Authors: Rabelo, Emanuelle Fontenele
Rocha, Lidianne Leal
Colares, Geórgia Barguil
Bomfim, Tatiana Araújo
Nogueira, Vanessa Lúcia Rodrigues
Katzenberger, Marco
Matthews-Cascon, Helena
Melo, Vânia Maria Maciel
Keywords: Symbiosis;Zoanthids;Zooxanthellae;Brazilian coast;Adaptation
Issue Date: 2015
Publisher: Symbiosis
Citation: RABELO, Emanuelle Fontenele et al. Symbiodinium diversity associated with zoanthids (Cnidaria: Hexacorallia) in Northeastern Brazil. Symbiosis, [s. l.], v. 64, p.105-113, 2015.
Abstract: Some marine animals have a dynamic mutualistic association involving heterotrophic coral animals (hosts) and autotrophic dinoflagellate endosymbionts in the genus Symbiodinium, known as zooxanthellae, which are directly involved in their physiology. Currently, there is limited knowledge of the Symbiodinium diversity associated with zoanthids from the Brazilian coast. Hence, this study assessed the diversity of zooxanthellae associated with Palythoa caribaeorum, Zoanthus sociatus and Protopalythoa variabilis commonly found on the northeast coast. Zoanthids samples were collected from sandstone reefs, and the total DNA from the samples was extracted. Diversity was assessed by denaturing gradient gel electrophoresis (DGGE) and ITS region cloning library. Data from ITS region sequences showed that zoanthids hosted two phylogenetic subclades or subgenus (C1 and A3) closely related to Symbiodinium from previous studies. Subclade C1 was found in Pa. caribaeorum, Pr. variabilis and Z. sociatus, while subclade A3 was found exclusively in Z. sociatus. This suggests that Pa. caribaeorum and Pr. variabilis are extremely selective, whereas Z. sociatus shows greater flexibility in the selection of its symbionts, and these differences may be involved with living in different reef environments. Knowledge of zooxanthellae diversity associated with zoanthids can explain their large distribution in Brazilian coast and contribute to a better understanding of zoanthid’s sensitivity to thermal stress
URI: http://www.repositorio.ufc.br/handle/riufc/63517
Access Rights: Acesso Aberto
Appears in Collections:DBIO - Artigos publicados em revista científica

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