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dc.contributor.author Hu, Zi-Min
dc.contributor.author Kantachumpoo, Attachai
dc.contributor.author Liu, Ruo-Yu
dc.contributor.author Sun, Zhong-Min
dc.contributor.author Yao, Jian-Ting
dc.contributor.author Komatsu, Teruhisa
dc.contributor.author Uwai, Shinya
dc.contributor.author Duan, De-Lin
dc.coverage.spatial Southeast Asia
dc.coverage.temporal Late Pleistocene
dc.date.accessioned 2017-12-11T12:31:49Z
dc.date.available 2017-12-11T12:31:49Z
dc.date.issued 2017-11-15
dc.identifier doi:10.5061/dryad.8hp51
dc.identifier.citation Hu Z, Kantachumpoo A, Liu R, Sun Z, Yao J, Komatsu T, Uwai S, Duan D (2018) A late Pleistocene marine glacial refugium in the south-west of Hainan Island, China: Phylogeographical insights from the brown alga Sargassum polycystum. Journal of Biogeography 45(2): 355-366.
dc.identifier.uri http://hdl.handle.net/10255/dryad.159963
dc.description Aim: Hainan Island, southern China, is characterized by rich diversity and endemism of marine organisms, yet the underpinning mechanisms and processes contributing to speciation and diversification are poorly understood. Here, the brown alga Sargassum polycystum is used as a model to identify putative marine glacial refugia and explore biogeographical patterns driven by climate change in the late Pleistocene ice ages. Location: South-East Asia. Methods: Mitochondrial cox1 and cox3 and nuclear internal transcribed spacer-2 (ITS2) were obtained from 310, 325 and 313 individuals of S. polycystum (23 localities), respectively. Phylogenetic trees (maximum likelihood and Bayesian inference) and haplotype/ribotype networks were constructed to elucidate phylogeographical patterns. Analysis of molecular variance (AMOVA), neutrality tests (Tajima's D and Fu & Li's D*), current (θπ) and historical (θw) genetic diversities and extended Bayesian skyline plots (EBSP) were used to estimate historical demography. Results: The populations from the south-west of Hainan Island harboured much higher genetic diversity and unique endemism in comparison with other populations in the distribution range. Sargassum polycystum experienced relatively long-term stable population size followed by a continued period of demographic expansion in the late Pleistocene. Main conclusions: Our phylogeographical evidence revealed the existence of a previously unidentified marine refugium specific to S. polycystum in the south-west of Hainan Island, China (the Central Depression of the Yinggehai Basin), along with a possible secondary refugium around the Bali Island, Indonesia. These biogeographical findings provide important insights regarding speciation, adaptation and evolution of marine organisms in South-East Asia and the conservation of unique biodiversity under climate change.
dc.relation.haspart doi:10.5061/dryad.8hp51/1
dc.relation.isreferencedby doi:10.1111/jbi.13130
dc.subject Marine Phylogeography
dc.subject Evolutionary Biogeography
dc.subject Seaweed
dc.title Data from: A late Pleistocene marine glacial refugium in the south-west of Hainan Island, China: Phylogeographical insights from the brown alga Sargassum polycystum
dc.type Article
dwc.ScientificName Sargassum polycystum
dc.contributor.correspondingAuthor Hu, Zi-Min
prism.publicationName Journal of Biogeography
dryad.dansTransferDate 2018-05-21T11:14:22.840+0000
dryad.dansEditIRI https://easy.dans.knaw.nl/sword2/container/60ca1782-90e3-408c-a91f-80cef3092b09
dryad.dansArchiveDate 2018-05-21T14:01:56.119+0000
dryad.dashTransferDate 2019-07-04T06:57:26.675+0000
dryad.dashStoredDate 2019-07-18T19:25:18.235+0000

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