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    Morphology and molecules reveal two new species of $\textit{Porites}$ (Scleractinia, Poritidae) from the Red Sea and the Gulf of Aden

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    Type
    Dataset
    Authors
    Terraneo, Tullia Isotta cc
    Benzoni, Francesca
    Baird, Andrew H.
    Arrigoni, Roberto
    Berumen, Michael L. cc
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Marine Science
    Marine Science Program
    Red Sea Research Center (RSRC)
    Reef Ecology Lab
    Date
    2019
    Permanent link to this record
    http://hdl.handle.net/10754/668115
    
    Metadata
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    Abstract
    Two new reef coral species, $\textit{Porites farasani}$ sp. nov. and $\textit{Porites hadramauti}$ sp. nov. (Scleractinia, Poritidae), are described from the Red Sea and the Gulf of Aden. $\textit{Porites farasani}$ sp. nov. only occurs in the Farasan Islands in the southern Red Sea, while $\textit{P. hadramauti}$ sp. nov. has been collected in the Yemen Hadramaut region in the Gulf of Aden. Both species presented striking $\textit{in situ}$ differences with respect to other $\textit{Porites}$ species, and were characterized by small encrusting colonies and unusual polyp colouration. In order to test the genetic distinctiveness of $\textit{P. farasani}$ sp. nov. and $\textit{P. hadramauti}$ sp. nov. between each other and with respect to other representatives in the genus $\textit{Porites}$, we investigated their evolutionary relationships with eight other morphological species of $\textit{Porites}$ occurring in the Red Sea and in the Gulf of Aden. Two DNA loci, the mitochondrial putative control region and the nuclear ribosomal ITS region, were sequenced, and three species delimitation approaches based on barcoding threshold (Automated Barcoding Gap Discovery) and coalescence theory (Poisson-Tree process, Generalized Mixed Yule Coalescent) were applied. Phylogenetic and species delimitation analyses were overall concordant, resolving $\textit{P. farasani}$ sp. nov. and $\textit{P. hadramauti}$ sp. nov. as two divergent but closely related lineages. Of the other morphologically defined $\textit{Porites}$ species, three were genetically differentiated ($\textit{P. rus}$, $\textit{P. columnaris}$ and $\textit{P. fontanesii}$), but five were genetically indistinguishable. The discovery of two regional endemics confirms the importance of the Red Sea and the Gulf of Aden as regions of high biodiversity and suggests the need for an integration of genome-wide molecular data with the re-evaluation of skeletal structures in the systematics of $\textit{Porites}$.
    Citation
    Terraneo, T. I., Benzoni, F., Baird, A. H., Arrigoni, R., & Berumen, M. L. (2019). Morphology and molecules reveal two new species of Porites (Scleractinia, Poritidae) from the Red Sea and the Gulf of Aden. Taylor & Francis. https://doi.org/10.6084/M9.FIGSHARE.9766895
    Publisher
    Taylor & Francis
    DOI
    10.6084/m9.figshare.9766895
    Additional Links
    https://tandf.figshare.com/articles/Morphology_and_molecules_reveal_two_new_species_of_i_Porites_i_Scleractinia_Poritidae_from_the_Red_Sea_and_the_Gulf_of_Aden/9766895
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    • [Article]
      Terraneo, T. I., Benzoni, F., Baird, A. H., Arrigoni, R., & Berumen, M. L. (2019). Morphology and molecules reveal two new species of Porites (Scleractinia, Poritidae) from the Red Sea and the Gulf of Aden. Systematics and Biodiversity, 17(5), 491–508. doi:10.1080/14772000.2019.1643806. DOI: 10.1080/14772000.2019.1643806 Handle: 10754/656697
    ae974a485f413a2113503eed53cd6c53
    10.6084/m9.figshare.9766895
    Scopus Count
    Collections
    Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program; Datasets

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