Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes

Handle URI:
http://hdl.handle.net/10754/583496
Title:
Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes
Authors:
Saenz Agudelo, Pablo; DiBattista, Joseph ( 0000-0002-5696-7574 ) ; Piatek, Marek J. ( 0000-0001-5368-3456 ) ; Gaither, Michelle R.; Harrison, Hugo B.; Nanninga, Gerrit B. ( 0000-0002-0134-1689 ) ; Berumen, Michael L. ( 0000-0003-2463-2742 )
Abstract:
Understanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographic features and environmental variables shape gene flow, particularly for marine species in large complex seascapes. Here, we evaluated the genomic composition of the two-band anemonefish Amphiprion bicinctus across its entire geographic range in the Red Sea and Gulf of Aden, as well as its close relative, Amphiprion omanensis endemic to the southern coast of Oman. Both the Red Sea and the Arabian Sea are complex and environmentally heterogeneous marine systems that provide an ideal scenario to address these questions. Our findings confirm the presence of two genetic clusters previously reported for A. bicinctus in the Red Sea. Genetic structure analyses suggest a complex seascape configuration, with evidence of both Isolation by Distance (IBD) and Isolation by Environment (IBE). In addition to IBD and IBE, genetic structure among sites was best explained when two barriers to gene flow were also accounted for. One of these coincides with a strong oligotrophic-eutrophic gradient at around 16-20˚N in the Red Sea. The other agrees with an historical bathymetric barrier at the straight of Bab al Mandab. Finally, these data support the presence of inter-specific hybrids at an intermediate suture zone at Socotra and indicate complex patterns of genomic admixture in the Gulf of Aden with evidence of introgression between species. Our findings highlight the power of recent genomic approaches to resolve subtle patterns of gene flow in marine seascapes.
KAUST Department:
Red Sea Research Center (RSRC); Biological and Environmental Sciences and Engineering (BESE) Division; Computational Bioscience Research Center (CBRC)
Citation:
Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes 2015:n/a Molecular Ecology
Publisher:
Wiley-Blackwell
Journal:
Molecular Ecology
Issue Date:
17-Nov-2015
DOI:
10.1111/mec.13471
Type:
Article
ISSN:
09621083
Additional Links:
http://doi.wiley.com/10.1111/mec.13471
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Computational Bioscience Research Center (CBRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSaenz Agudelo, Pabloen
dc.contributor.authorDiBattista, Josephen
dc.contributor.authorPiatek, Marek J.en
dc.contributor.authorGaither, Michelle R.en
dc.contributor.authorHarrison, Hugo B.en
dc.contributor.authorNanninga, Gerrit B.en
dc.contributor.authorBerumen, Michael L.en
dc.date.accessioned2015-12-09T13:00:19Zen
dc.date.available2015-12-09T13:00:19Zen
dc.date.issued2015-11-17en
dc.identifier.citationSeascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes 2015:n/a Molecular Ecologyen
dc.identifier.issn09621083en
dc.identifier.doi10.1111/mec.13471en
dc.identifier.urihttp://hdl.handle.net/10754/583496en
dc.description.abstractUnderstanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographic features and environmental variables shape gene flow, particularly for marine species in large complex seascapes. Here, we evaluated the genomic composition of the two-band anemonefish Amphiprion bicinctus across its entire geographic range in the Red Sea and Gulf of Aden, as well as its close relative, Amphiprion omanensis endemic to the southern coast of Oman. Both the Red Sea and the Arabian Sea are complex and environmentally heterogeneous marine systems that provide an ideal scenario to address these questions. Our findings confirm the presence of two genetic clusters previously reported for A. bicinctus in the Red Sea. Genetic structure analyses suggest a complex seascape configuration, with evidence of both Isolation by Distance (IBD) and Isolation by Environment (IBE). In addition to IBD and IBE, genetic structure among sites was best explained when two barriers to gene flow were also accounted for. One of these coincides with a strong oligotrophic-eutrophic gradient at around 16-20˚N in the Red Sea. The other agrees with an historical bathymetric barrier at the straight of Bab al Mandab. Finally, these data support the presence of inter-specific hybrids at an intermediate suture zone at Socotra and indicate complex patterns of genomic admixture in the Gulf of Aden with evidence of introgression between species. Our findings highlight the power of recent genomic approaches to resolve subtle patterns of gene flow in marine seascapes.en
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.1111/mec.13471en
dc.rightsThis is the peer reviewed version of the following article: Saenz-Agudelo, P., DiBattista, J. D., Piatek, M. J., Gaither, M. R., Harrison, H. B., Nanninga, G. B. and Berumen, M. L. (2015), Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes. Mol Ecol. Accepted Author Manuscript, which has been published in final form at http://doi.wiley.com/10.1111/mec.13471. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.en
dc.titleSeascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishesen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentComputational Bioscience Research Center (CBRC)en
dc.identifier.journalMolecular Ecologyen
dc.relation.referencesSaenz-Agudelo, P., DiBattista, J. D., Piatek, M. J., Gaither, M. R., Harrison, H. B., Nanninga, G. B., & Berumen, M. L. (2015). Data from: Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes (Version 1) [Data set]. Dryad Digital Repository. https://doi.org/10.5061/dryad.n1432en
dc.relation.referencesDOI:10.5061/DRYAD.N1432en
dc.relation.referencesHANDLE:http://hdl.handle.net/10754/624189en
dc.eprint.versionPost-printen
dc.contributor.institutionSchool of Biological and Biomedical Sciences, Durham University; South Road Durham DH1 3LE United Kingdomen
dc.contributor.institutionAustralian Research Council Centre of Excellence for Coral Reef Studies, James Cook University; Townsville QLD 4811 Australiaen
dc.contributor.institutionInstituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chileen
dc.contributor.institutionDepartment of Environment and Agriculture, Curtin University, PO Box U1987, Perth, WA 6845, Australiaen
dc.contributor.institutionSection of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, United Statesen
dc.contributor.institutionUSR 3278 CRIOBE CNRS-EPHE, CRIOBE BP 1013, Papetoai, 98729 Moorea, French Polynesiaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorSaenz Agudelo, Pabloen
kaust.authorDiBattista, Josephen
kaust.authorPiatek, Marek J.en
kaust.authorNanninga, Gerrit B.en
kaust.authorBerumen, Michael L.en
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