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    Lack of host specificity of copepod crustaceans associated with mushroom corals in the Red Sea

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    Type
    Article
    Authors
    Ivanenko, Viatcheslav N.
    Hoeksema, Bert W.
    Mudrova, Sofya V.
    Nikitin, Mikhail A.
    Martínez, Alejandro
    Rimskaya-Korsakova, Nadezda N.
    Berumen, Michael L. cc
    Fontaneto, Diego
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Marine Science Program
    Red Sea Research Center (RSRC)
    KAUST Grant Number
    No. 1389-CRG1
    Date
    2018-06-15
    Online Publication Date
    2018-06-15
    Print Publication Date
    2018-10
    Permanent link to this record
    http://hdl.handle.net/10754/630482
    
    Metadata
    Show full item record
    Abstract
    The radiation of symbiotic copepods (Crustacea: Copepoda) living in association with stony corals (Cnidaria: Scleractinia) is considered host-specific and linked to the phylogenetic diversification of their hosts. However, symbiotic copepods are poorly investigated, occurrence records are mostly anecdotal, and no explicit analysis exists regarding their relationship with the hosts. Here, we analysed the occurrence of symbiotic copepods on different co-occurring and phylogenetically closely related scleractinian corals. We used an innovative approach of DNA extraction from single microscopic specimens that preserves the shape of the organisms for integrative morphological studies. The rationale of the study involved: (i) sampling of mushroom corals (Fungiidae) belonging to 13 species and eight genera on different reefs along the Saudi coastline in the Red Sea, (ii) extraction of all the associated copepods, (iii) morphological screening and identification of copepod species, (iv) use of DNA taxonomy on mitochondrial and nuclear markers to determine species boundaries for morphologically unknown copepod species, (v) reconstruction of phylogenies to understand their evolutionary relationships, and (vi) analysis of the ecological drivers of the occurrence, diversity and host specificity of the copepods. The seven species of coral-associated copepods, all new to science, did not show any statistically significant evidence of host-specificity or other pattern of ecological association. We thus suggest that, contrary to most assumptions and previous anecdotal evidence on this coral-copepod host-symbiont system, the association between copepods and their host corals is rather labile, not strict, and not phylogenetically constrained, changing our perception on evolutionary patterns and processes in symbiotic copepods.
    Citation
    Ivanenko VN, Hoeksema BW, Mudrova SV, Nikitin MA, Martínez A, et al. (2018) Lack of host specificity of copepod crustaceans associated with mushroom corals in the Red Sea. Molecular Phylogenetics and Evolution 127: 770–780. Available: http://dx.doi.org/10.1016/j.ympev.2018.06.024.
    Sponsors
    The sampling was supported by award No. 1389-CRG1 and baseline funding from the King Abdullah University of Science and Technology (KAUST) to MLB. DNA extraction, amplification, and data analysis was conducted under a CNR-RFBR Italian-Russian bilateral agreement grant (RFBR #15-54-78061) to DF and VNI; DNA sequencing was supported by the Russian Science Foundation (#14-50-00029); microscopic and taxonomic study was supported by RFBR grant (#18-04-01192) to VNI. AM was supported by a Marie Curie fellowship (MSCA ANCAVE #745530). The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript.
    Publisher
    Elsevier BV
    Journal
    Molecular Phylogenetics and Evolution
    DOI
    10.1016/j.ympev.2018.06.024
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S1055790318301945
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.ympev.2018.06.024
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program

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