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Genetic diversity and connectivity in a brooding reef coral at the limit of its distribution

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dc.contributor Australian Institute Of Marine Science
dc.contributor So Cross Univ
dc.contributor Coral Reef Res Ctr
dc.contributor Southern Cross University
dc.contributor Sch Environm Sci & Management
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science (aims) en VAN OPPEN, MADELEINE J. H. NOREEN, ANNIKA M. E. HARRISON, PETER L. 2017-03-21T00:48:02Z 2013-02-28T06:41:36Z 2017-03-21T00:48:02Z 2019-07-08T02:16:51Z 2013-02-28T06:41:36Z 2013-02-28T06:41:36Z 2017-03-21T00:48:02Z 2019-07-08T02:16:51Z 2009-11-22
dc.identifier 8295 en
dc.identifier.citation Noreen AME, Harrison PL and van Oppen MJH (2009) Genetic diversity and connectivity in a brooding reef coral at the limit of its distribution. Proceedings of the Royal Society of London B Biological Sciences. 276: 3927-3935. en
dc.identifier.issn 0962-8452
dc.description Link to abstract/full text - en
dc.description.abstract Remote populations are predicted to be vulnerable owing to their isolation from potential source reefs, and usually low population size and associated increased extinction risk. We investigated genetic diversity, population subdivision and connectivity in the brooding reef coral Seriatopora hystrix at the limits of its Eastern Australian (EA) distribution and three sites in the southern Great Barrier Reef (GBR). Over the approximately 1270 km survey range, high levels of population subdivision were detected (global F-ST = 0.224), with the greatest range in pairwise F-ST values observed among the three southernmost locations: Lord Howe Island, Elizabeth Reef and Middleton Reef. Flinders Reef, located between the GBR and the more southerly offshore reefs, was highly isolated and showed the signature of a recent bottleneck. High pairwise FST values and the presence of multiple genetic clusters indicate that EA subtropical coral populations have been historically isolated from each other and the GBR. One putative first-generation migrant was detected from the GBR into the EA subtropics. Occasional long-distance dispersal is supported by changes in species composition at these high-latitude reefs and the occurrence of new species records over the past three decades. While subtropical populations exhibited significantly lower allelic richness than their GBR counterparts, genetic diversity was still moderately high. Furthermore, subtropical populations were not inbred and had a considerable number of private alleles. The results suggest that these high-latitude S. hystrix populations are supplemented by infrequent long-distance migrants from the GBR and may have adequate population sizes to maintain viability and resist severe losses of genetic diversity.
dc.description.sponsorship This project was funded by an International Society of Reef Studies/The Ocean Conservation Fellowship to A. M. E. N. A. M. E. N. is supported by a Southern Cross University International Postgraduate Research Scholarship and Stipend. We thank Southern Cross University and the Australian Institute for Marine Science for institutional support, Paul Anderson (DEWHA) for providing the opportunity to do fieldwork at Elizabeth and Middleton Reefs, Simon Hartley (SCU) for diving assistance, Greg Luker (SCU) for producing the map, Lesa Peplow (AIMS) for laboratory support and the AIMS PopGen discussion group for comments on an early draft. The comments of two anonymous reviewers substantially improved this manuscript.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Null
dc.relation.ispartof Proceedings of the Royal Society of London B Biological Sciences - pages: 276: 3927-3935 en
dc.subject Great-barrier-reef
dc.subject High-latitude
dc.subject Ecology
dc.subject Seriatopora-hystrix
dc.subject Lord-howe-island
dc.subject Connectivity
dc.subject Biology
dc.subject Evolutionary Biology
dc.subject Population-structure
dc.subject Climate-change
dc.subject Environmental Sciences & Ecology
dc.subject Pocillopora-damicornis
dc.subject East Australian Current
dc.subject Genotypic Diversity
dc.subject Subtropical
dc.subject Life Sciences & Biomedicine - Other Topics
dc.subject Scleractinian Coral
dc.subject Eastern Australia
dc.subject Seriatopora Hystrix
dc.subject Microsatellites
dc.title Genetic diversity and connectivity in a brooding reef coral at the limit of its distribution
dc.type journal article en
dc.identifier.doi 10.1098/rspb.2009.1050
dc.identifier.wos WOS:000270665100003

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