Nash, HC;
Wirdateti;
Low, GW;
Choo, SW;
Chong, JL;
Semiadi, G;
Hari, R;
... Rheindt, FE; + view all
(2018)
Conservation genomics reveals possible illegal trade routes and admixture across pangolin lineages in Southeast Asia.
Conservation Genetics
, 19
(5)
pp. 1083-1095.
10.1007/s10592-018-1080-9.
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Abstract
The use of genome-wide genetic markers is an emerging approach for informing evidence-based management decisions for highly threatened species. Pangolins are the most heavily trafficked mammals across illegal wildlife trade globally, but critically endangered Sunda pangolins (Manis javanica) have not been widely studied in insular Southeast Asia. We used > 12,000 single nucleotide polymorphic markers (SNPs) to assign pangolin seizures from illegal trade of unknown origin to possible geographic sources via genetic clustering with pangolins of known origin. Our SNPs reveal three previously unrecognized genetic lineages of Sunda pangolins, possibly from Borneo, Java and Singapore/Sumatra. The seizure assignments suggest the majority of pangolins were traded from Borneo to Java. Using mitochondrial markers did not provide the same resolution of pangolin lineages, and to explore if admixture might explain these differences, we applied sophisticated tests of introgression using > 2000 SNPs to investigate secondary gene flow between each of the three Sunda pangolin lineages. It is possible the admixture which we discovered is due to human-mediated movements of pangolins. Our findings impact a range of conservation actions, including tracing patterns of trade, repatriation of rescue animals, and conservation breeding. In order to conserve genetic diversity, we suggest that, pending further research, each pangolin lineage should as a precaution be protected and managed as an evolutionarily distinct conservation unit.
| Type: | Article |
|---|---|
| Title: | Conservation genomics reveals possible illegal trade routes and admixture across pangolin lineages in Southeast Asia |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s10592-018-1080-9 |
| Publisher version: | https://doi.org/10.1007/s10592-018-1080-9 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | SNPs, Mitochondrial markers, Gene flow, Illegal wildlife trade, Population assignment, Conservation breeding |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10049449 |
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