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Rarity and genetic diversity in Indo-Pacific Acropora corals

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dc.contributor Ctr Excellence Coral Reef Studies
dc.contributor Australian Res Council
dc.contributor James Cook Univ
dc.contributor James Cook University
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Museum
dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Institute Of Marine Science (aims) en VAN OPPEN, MADELEINE. J. H. RICHARDS, ZOE T. 2013-02-28T06:49:23Z 2017-03-21T01:18:15Z 2017-03-21T01:18:15Z 2019-05-09T01:16:15Z 2017-03-21T01:18:15Z 2017-03-21T01:18:15Z 2013-02-28T06:49:23Z 2019-05-09T01:16:15Z 2012-08-01
dc.identifier 9205 en
dc.identifier.citation Richards ZT and van Oppen MJH (2012) Rarity and genetic diversity in Indo Pacific Acropora corals. Ecology and Evolution. 2: 1867-1888. en
dc.identifier.issn 2045-7758
dc.description.abstract Among various potential consequences of rarity is genetic erosion. Neutral genetic theory predicts that rare species will have lower genetic diversity than common species. To examine the association between genetic diversity and rarity, variation at eight DNA microsatellite markers was documented for 14 Acropora species that display different patterns of distribution and abundance in the Indo-Pacific Ocean. Our results show that the relationship between rarity and genetic diversity is not a positive linear association because, contrary to expectations, some rare species are genetically diverse and some populations of common species are genetically depleted. Our data suggest that inbreeding is the most likely mechanism of genetic depletion in both rare and common corals, and that hybridization is the most likely explanation for higher than expected levels of genetic diversity in rare species. A significant hypothesis generated from our study with direct conservation implications is that as a group, Acropora corals have lower genetic diversity at neutral microsatellite loci than may be expected from their taxonomic diversity, and this may suggest a heightened susceptibility to environmental change. This hypothesis requires validation based on genetic diversity estimates derived from a large portion of the genome.
dc.description.sponsorship JCU Advanced Analytical Centre. Thanks also to staff of the Orpheus Island Research Station, the College of the Marshall Islands, and the Walindii Research Station; to all colleagues who collected samples that were used in this study (Maria Beger, Paul Muir, Natalie Rosser, Akira Aguichi, David Abrego); to Carden Wallace from the Museum of Tropical Queensland, for verifying coral identifications; and to Barbara Done, for assistance with specimen curation; to Silvia Pinca, for A. rongelapensis photo; and to Professor Richard Frankham, for useful discussions that helped to improve this manuscript. This research was funded via a scholarship to Z. R. from James Cook University, Smart State PhD Funding and ISRS Fellowship awarded to Z. R.
dc.description.sponsorship This research was funded via a Ph.D. scholarship, Smart State PhD Funding, and ISRS Fellowship at James Cook University (Z. R.) and Chadwick Biodiversity Fellowship at the Australian Museum (Z. R.).
dc.language English
dc.language en en
dc.relation.ispartof Ecology and Evolution - pages: 2: 1867-1888 en
dc.relation.ispartof Null
dc.subject Great-barrier-reef
dc.subject Population Genetics
dc.subject Ecology
dc.subject Microsatellite
dc.subject Conservation
dc.subject Evolutionary Biology
dc.subject Broadcast Spawning Coral
dc.subject Population-structure
dc.subject Environmental Sciences & Ecology
dc.subject Heterozygosity
dc.subject Allelic Richness
dc.subject Pocillopora-damicornis
dc.subject Hybridization
dc.subject Brooding Coral
dc.subject Small Population
dc.subject Genotypic Diversity
dc.subject False Discovery Rate
dc.subject Threatened Species
dc.subject Building Coral
dc.subject Scleractinian Coral
dc.subject Ryukyu Archipelago
dc.title Rarity and genetic diversity in Indo-Pacific Acropora corals
dc.type journal article en
dc.identifier.doi 10.1002/ece3.304
dc.identifier.wos WOS:000312448700009

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