Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral
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...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Wiley-Blackwell Publishing
2018
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| Online Access: | http://purl.org/au-research/grants/arc/LP160101508 http://hdl.handle.net/20.500.11937/66728 |
| _version_ | 1848761378161033216 |
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| author | Underwood, J. Richards, Zoe Miller, K. Puotinen, M. Gilmour, J. |
| author_facet | Underwood, J. Richards, Zoe Miller, K. Puotinen, M. Gilmour, J. |
| author_sort | Underwood, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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 10Â 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. |
| first_indexed | 2025-11-14T10:30:43Z |
| format | Journal Article |
| id | curtin-20.500.11937-66728 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:30:43Z |
| publishDate | 2018 |
| publisher | Wiley-Blackwell Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-667282022-11-23T07:03:38Z Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral Underwood, J. Richards, Zoe Miller, K. Puotinen, M. Gilmour, J. 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 10Â 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. 2018 Journal Article http://hdl.handle.net/20.500.11937/66728 10.1111/mec.14559 http://purl.org/au-research/grants/arc/LP160101508 Wiley-Blackwell Publishing fulltext |
| spellingShingle | Underwood, J. Richards, Zoe Miller, K. Puotinen, M. Gilmour, J. Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral |
| title | Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral |
| title_full | Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral |
| title_fullStr | Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral |
| title_full_unstemmed | Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral |
| title_short | Genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral |
| title_sort | genetic signatures through space, time and multiple disturbances in a ubiquitous brooding coral |
| url | http://purl.org/au-research/grants/arc/LP160101508 http://hdl.handle.net/20.500.11937/66728 |