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Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral

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dc.contributor Australian Institute Of Marine Science
dc.contributor Indian Oceans Marine Res Ctr
dc.contributor Trace & Environm Dna Lab
dc.contributor Western Australian Museum
dc.contributor Sch Mol & Life Sci
dc.contributor Curtin Univ
dc.contributor Dept Aquat Zool
dc.contributor Curtin University
dc.contributor Australian Inst Marine Sci GILMOUR, JAMES P. UNDERWOOD, JIM N. RICHARDS, ZOE T. MILLER, KAREN J. PUOTINEN, MARJI L. 2018-05-20T18:32:24Z 2018-05-20T18:32:24Z 2019-05-09T01:18:45Z 2018-05-20T18:32:24Z 2018-05-20T18:32:24Z 2019-05-09T01:18:45Z 2018-04-01
dc.identifier.citation Underwood JN, Richards ZT, Miller KJ, Puotinen ML, Gilmour JP (2018) Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral. Molecular Ecology 27(7): 1586-1602
dc.identifier.issn 0962-1083
dc.description.abstract The predominance of self-recruitment in many reef-building corals has fundamental and complex consequences for their genetic diversity, population persistence and responses to climate change. Knowledge of genetic structure over local scales needs to be placed within a broad spatial context, and also integrated with genetic monitoring through time to disentangle these consequences. Here, we examined patterns of genetic diversity over multiple spatio-temporal scales across tropical Australia in the ubiquitous brooding coral, Seriatopora hystrix. We also analysed complimentary environmental and demographic data to elucidate the seascape drivers of these patterns. Large genetic differences were detected between the east vs. west coasts of Australia. In northwest Australia, geographic differentiation dominated genetic structure over multiple scales. However, three sympatric lineages were detected at the largest offshore reef system (Scott Reef). Similar to the differences observed among putative species in eastern Australia, these lineages were associated with different levels of wave exposure. Local genetic structure within the Scott Reef system was relatively stable over 10 years, but temporal differences were observed that reflected small but important genetic changes over a few generations during recovery after severe bleaching. These results highlight the importance of self-recruitment together with occasional longer distance connectivity for the persistence of a metapopulation across spatially and temporally variable environments. Our multidimensional research provides a foundation for further long-term genetic monitoring to inform conservation strategies and highlights that sampling scales, ecological effects and cryptic diversity are important considerations to develop realistic understanding of the evolutionary resilience of corals.
dc.description.sponsorship Australian Research Council, Grant/Award Number: LP160101508
dc.language English
dc.subject Genetic Diversity
dc.subject Ecology
dc.subject Seriatopora-hystrix
dc.subject Acropora-tenuis
dc.subject Evolutionary Biology
dc.subject Isolated System
dc.subject Population-structure
dc.subject Climate-change
dc.subject Environmental Sciences & Ecology
dc.subject Metapopulation
dc.subject Western-australia
dc.subject Seascape Genetics
dc.subject Pocillopora-damicornis
dc.subject Eco-evolutionary Dynamics
dc.subject Genotypic Diversity
dc.subject Temporal Genetic Monitoring
dc.subject Biochemistry & Molecular Biology
dc.subject Scleractinian Coral
dc.subject Seriatopora Hystrix
dc.subject Great-barrier-reef
dc.title Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral
dc.type journal article
dc.identifier.doi 10.1111/mec.14559
dc.identifier.wos WOS:000430919600006

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