RADseq analyses reveal concordant Indian Ocean biogeographic and phylogeographic boundaries in the reef fish Dascyllus trimaculatus
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Marine Science Program
Marine Science and Engineering
Red Sea Research Center
Red Sea Research Center (RSRC)
KAUST Grant NumberCRG-1-2012-BER-002
Online Publication Date2019-05-29
Print Publication Date2019-05-31
Permanent link to this recordhttp://hdl.handle.net/10754/656235
MetadataShow full item record
AbstractPopulation genetic analysis is an important tool for estimating the degree of evolutionary connectivity in marine organisms. Here, we investigate the population structure of the three-spot damselfish Dascyllus trimaculatus in the Red Sea, Arabian Sea and Western Indian Ocean, using 1174 single nucleotide polymorphisms (SNPs). Neutral loci revealed a signature of weak genetic differentiation between the Northwestern (Red Sea and Arabian Sea) and Western Indian Ocean biogeographic provinces. Loci potentially under selection (outlier loci) revealed a similar pattern but with a much stronger signal of genetic structure between regions. The Oman population appears to be genetically distinct from all other populations included in the analysis. While we could not clearly identify the mechanisms driving these patterns (isolation, adaptation or both), the datasets indicate that population-level divergences are largely concordant with biogeographic boundaries based on species composition. Our data can be used along with genetic connectivity of other species to identify the common genetic breaks that need to be considered for the conservation of biodiversity and evolutionary processes in the poorly studied Western Indian Ocean region.
CitationSalas, E. M., Bernardi, G., Berumen, M. L., Gaither, M. R., & Rocha, L. A. (2019). RADseq analyses reveal concordant Indian Ocean biogeographic and phylogeographic boundaries in the reef fish Dascyllus trimaculatus. Royal Society Open Science, 6(5), 172413. doi:10.1098/rsos.172413
SponsorsAcknowledgements. We thank JP Hobbs, JD DiBattista, C Rocha, A Sellas, BW Bowen, M Bernal, HT Pinheiro, I FernandezSilva, SA Jones, J Copus and B Simison for their help in the laboratory and fruitful discussions and J Chadha and TA Quiros for their timely contributions. We also thank the British Indian Ocean Territory Administration, the Chagos Conservation Trust, and Charles and Anne Sheppard for obtaining permits and facilitating the expedition on which materials were collected from the Chagos Archipelago. We also thank D Wagner and SA Jones for the assistance with field collections. We thanks D Hogan, E Lassiter and anonymous reviewers for the comments that greatly improved the manuscript.
Funding : The work was possible with funding from California Academy of Sciences to L.A.R., a Lakeside Foundation scholarship to E.M.S., funding from the King Abdullah University of Science and Technology (award no. CRG-1-2012-BER-002) and baseline research funds to M.L.B., and a Myers trust grant to E.M.S
PublisherThe Royal Society
JournalRoyal Society Open Science
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E. M. Salas, G. Bernardi, M. L. Berumen, M. R. Gaither, & L. A. Rocha. (2019). Supplementary material from "RADseq analyses reveal concordant Indian Ocean biogeographic and phylogeographic boundaries in the reef fish Dascyllus trimaculatus". Figshare. https://doi.org/10.6084/M9.FIGSHARE.C.4502858. DOI: 10.6084/m9.figshare.c.4502858 Handle: 10754/664732
Salas, E. M., Bernardi, G., Berumen, M. L., Gaither, M., & Rocha, L. A. (2019). Data from: RADseq analyses reveal concordant Indian Ocean biogeographic and phylogeographic boundaries in the reef fish Dascyllus trimaculatus (Version 1) [Data set]. Dryad. https://doi.org/10.5061/DRYAD.BN457RR. DOI: 10.5061/dryad.bn457rr Handle: 10754/665142
Except where otherwise noted, this item's license is described as Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.