Show simple item record

dc.contributor.authorSaenz-Agudelo, P.
dc.contributor.authorDi Battista, Joseph
dc.contributor.authorPiatek, M.
dc.contributor.authorGaither, M.
dc.contributor.authorHarrison, H.
dc.contributor.authorNanninga, G.
dc.contributor.authorBerumen, M.
dc.date.accessioned2017-01-30T15:16:21Z
dc.date.available2017-01-30T15:16:21Z
dc.date.created2016-02-15T19:30:20Z
dc.date.issued2015
dc.date.submitted2016-02-16
dc.identifier.citationSaenz-Agudelo, P. and Di Battista, J. and Piatek, M. and Gaither, M. and Harrison, H. and Nanninga, G. and Berumen, M. 2015. Seascape genetics along environmental gradients in the Arabian Peninsula: Insights from ddRAD sequencing of anemonefishes. Molecular Ecology. 24 (24): pp. 6241-6255.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/44774
dc.identifier.doi10.1111/mec.13471
dc.description.abstract

Understanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographical 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 geographical 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 a historical bathymetric barrier at the straight of Bab al Mandab. Finally, these data support the presence of interspecific 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.

dc.publisherWiley-Blackwell Publishing Ltd.
dc.titleSeascape genetics along environmental gradients in the Arabian Peninsula: Insights from ddRAD sequencing of anemonefishes
dc.typeJournal Article
dcterms.dateSubmitted2016-02-16
dcterms.source.volume24
dcterms.source.number24
dcterms.source.startPage6241
dcterms.source.endPage6255
dcterms.source.issn0962-1083
dcterms.source.titleMolecular Ecology
curtin.digitool.pid238003
curtin.pubStatusPublished
curtin.refereedTRUE
curtin.departmentDepartment of Environment and Agriculture
curtin.identifier.scriptidPUB-SE-DEA-JDB-90675
curtin.identifier.elementsidELEMENTS-114204
curtin.accessStatusFulltext not available


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record