Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosus
The Coral Triangle is widely considered the most important centre of marine biodiversity in Asia while areas on its periphery such as the South China Sea, have received much less interest. Here, we demonstrate that a small population of the knobbly sea star Protoreaster nodosus in Singapore has simi...
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| Format: | Article |
| Language: | English |
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The Royal Society
2016-01-01
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| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.160253 |
| _version_ | 1818295391889653760 |
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| author | Y. C. Tay M. W. P. Chng W. W. G. Sew F. E. Rheindt K. P. P. Tun R. Meier |
| author_facet | Y. C. Tay M. W. P. Chng W. W. G. Sew F. E. Rheindt K. P. P. Tun R. Meier |
| author_sort | Y. C. Tay |
| collection | DOAJ |
| description | The Coral Triangle is widely considered the most important centre of marine biodiversity in Asia while areas on its periphery such as the South China Sea, have received much less interest. Here, we demonstrate that a small population of the knobbly sea star Protoreaster nodosus in Singapore has similarly high levels of genetic diversity as comparable Indonesian populations from the Coral Triangle. The high genetic diversity of this population is remarkable because it is maintained despite decades of continued anthropogenic disturbance. We postulate that it is probably due to broadcast spawning which is likely to maintain high levels of population connectivity. To test this, we analysed 6140 genome-wide single nucleotide polymorphism (SNP) loci for Singapore's populations and demonstrate a pattern of near panmixia. We here document a second case of high genetic diversity and low genetic structure for a broadcast spawner in Singapore, which suggests that such species have high resilience against anthropogenic disturbances. The study demonstrates the feasibility and power of using genome-wide SNPs for connectivity studies of marine invertebrates without a sequenced genome. |
| first_indexed | 2024-12-13T03:46:54Z |
| format | Article |
| id | doaj.art-f1e8058b62da400fb1147d7660033487 |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-13T03:46:54Z |
| publishDate | 2016-01-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-f1e8058b62da400fb1147d76600334872022-12-22T00:00:49ZengThe Royal SocietyRoyal Society Open Science2054-57032016-01-013810.1098/rsos.160253160253Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosusY. C. TayM. W. P. ChngW. W. G. SewF. E. RheindtK. P. P. TunR. MeierThe Coral Triangle is widely considered the most important centre of marine biodiversity in Asia while areas on its periphery such as the South China Sea, have received much less interest. Here, we demonstrate that a small population of the knobbly sea star Protoreaster nodosus in Singapore has similarly high levels of genetic diversity as comparable Indonesian populations from the Coral Triangle. The high genetic diversity of this population is remarkable because it is maintained despite decades of continued anthropogenic disturbance. We postulate that it is probably due to broadcast spawning which is likely to maintain high levels of population connectivity. To test this, we analysed 6140 genome-wide single nucleotide polymorphism (SNP) loci for Singapore's populations and demonstrate a pattern of near panmixia. We here document a second case of high genetic diversity and low genetic structure for a broadcast spawner in Singapore, which suggests that such species have high resilience against anthropogenic disturbances. The study demonstrates the feasibility and power of using genome-wide SNPs for connectivity studies of marine invertebrates without a sequenced genome.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.160253protoreaster nodosusgenetic diversityddradseqbroadcast spawnerspecies resilience |
| spellingShingle | Y. C. Tay M. W. P. Chng W. W. G. Sew F. E. Rheindt K. P. P. Tun R. Meier Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosus Royal Society Open Science protoreaster nodosus genetic diversity ddradseq broadcast spawner species resilience |
| title | Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosus |
| title_full | Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosus |
| title_fullStr | Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosus |
| title_full_unstemmed | Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosus |
| title_short | Beyond the Coral Triangle: high genetic diversity and near panmixia in Singapore's populations of the broadcast spawning sea star Protoreaster nodosus |
| title_sort | beyond the coral triangle high genetic diversity and near panmixia in singapore s populations of the broadcast spawning sea star protoreaster nodosus |
| topic | protoreaster nodosus genetic diversity ddradseq broadcast spawner species resilience |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.160253 |
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