Geochelone elegans is one of the most heavily traded tortoise species of the world, and confiscated tortoises are frequently released into the wild, without knowledge about their origin. Using for the first time samples from Pakistan and Sri Lanka, we examined phylogeographic differentiation of G. elegans using 2289 bp of mitochondrial DNA. We found weak intraspecific differentiation without a clear geographic pattern. We suggest that natural phylogeographic differentiation may have been already destroyed by massive releases of confiscated non-native tortoises. The presence of two distinct clades on Sri Lanka, however, could also be the result of a natural range expansion of a mainland lineage into the distribution range of a lineage endemic to Sri Lanka during Pleistocene low sea level stands. We propose that a systematic screening of the genetic differentiation of wild G. elegans should be conducted across its entire distribution range to provide a sound basis for the relocation of confiscated tortoises.
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D’Cruze, N., Mookerjee, A., Vyas, R., MacDonald, D.W., de Silva, A. (2018): Geochelone elegans (Schoepff 1795) – Indian star tortoise, star tortoise. In: Conservation Biology of Freshwater Turtles and Tortoises: a Compilation Project of the IUCN SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs 5, pp. 106.1-106.13. Rhodin, A.G.J., Iverson, J.B., van Dijk, P.P., Stanford, C.B., Goode, E.V., Buhlmann, K.A., Pritchard, P.C.H., Mittermeier, R.A., Eds, Chelonian Research Foundation and Turtle Conservancy, Lunenburg, Massachusetts.
de Silva, A., Gunawardena, M., Wijenayake, P., Malsinghe, D. (2019): Star tortoises (Geochelone elegans): world’s number one tortoise in the illegal pet trade. Wildlanka, in press.
Fritz, U., Alcalde, L., Vargas-Ramírez, M., Goode, E.V., Fabius-Turoblin, D.U., Praschag, P. (2012): Northern genetic richness and southern purity, but just one species in the Chelonoidis chilensis complex. Zool. Scr. 41: 220-232.
Fritz, U., Bininda-Emonds, O.R.P. (2007): When genes meet nomenclature: tortoise phylogeny and the shifting generic concepts of Testudo and Geochelone. Zoology 110: 298-307.
Gaur, A., Reddy, A., Annapoorni, S., Satyarebala, B., Shivaji, S. (2006): The origin of Indian star tortoises (Geochelone elegans) based on nuclear and mitochondrial DNA analysis: a story of rescue and repatriation. Conserv. Genet. 7: 231-240.
Hall, T.A. (1999): BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucl. Acids Symp. Ser. 41: 95-98.
Kindler, C., Branch, W.R., Hofmeyr, M.D., Maran, J., Široký, P., Vences, M., Harvey, J., Hauswaldt, J.S., Schleicher, A., Stuckas, H., Fritz, U. (2012): Molecular phylogeny of African hinge-back tortoises (Kinixys): implications for phylogeography and taxonomy (Testudines: Testudinidae). J. Zool. Syst. Evol. Res. 50: 192-201.
Kumar, S., Stecher, G., Tamura, K. (2016): MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Mol. Biol. Evol. 33: 1870-1874.
Lanfear, R., Calcott, B., Ho, S.Y.W., Guindon, S. (2012): PartitionFinder: combined selection of partitioning schemes and substitution models for phylogenetic analyses. Mol. Biol. Evol. 29: 1695-1701.
Le, M., Raxworthy, C.J., McCord, W.P., Mertz, L. (2006): A molecular phylogeny of tortoises (Testudines: Testudinidae) based on mitochondrial and nuclear genes. Mol. Phylogenet. Evol. 40: 517-531.
Malsinghe, D., de Silva, A., Priyadarshani, H.A.A., Dassanayake, D., Rodrigo, K., Kithsiri, D.M.D., Kulathunga, D.G.B.D., Kumaratunga, V., Jinadasa, T.N. (2017): Seizure of the biggest illegal shipment of star tortoises (Geochelone elegans) by the Sri Lankan navy. Wildlanka 5: 78-83.
Neumann, D., Borisenko, A.V., Coddington, J.A., Häuser, C.L., Butler, C.R., Casino, A., Vogel, J.C., Haszprunar, G., Giere, P. (2018): Global biodiversity research tied up by juridical interpretations of access and benefit sharing. Org. Divers. Evol. 18: 1-18.
Petzold, A., Vargas-Ramírez, M., Kehlmaier, C., Vamberger, M., Branch, W.R., Du Preez, L., Hofmeyr, M.D., Meyer, L., Schleicher, A., Široký, P., Fritz, U. (2014): A revision of African helmeted terrapins (Testudines: Pelomedusidae: Pelomedusa), with descriptions of six new species. Zootaxa 3795: 523-548.
Prathapan, K.D., Pethiyagoda, R., Bawa, K.S., Raven, P.H., Rajan, D. and 172 co-signatories from 35 countries (2018): When the cure kills – CBD limits biodiversity research. National laws fearing biopiracy squelch taxonomy studies. Science 360: 1405-1406.
Ramachandran, V., Robin, V.V., Tamma, K., Ramakrishnan, U. (2017): Climatic and geographic barriers drive distributional patterns of bird phenotypes within peninsular India. J. Avian Biol. 48: 620-630.
Ronquist, F., Teslenko, M., van der Mark, P., Ayres, D.L., Darling, A., Höhna, S., Larget, B., Liu, L., Suchard, M.A., Huelsenbeck, J.P. (2012): MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Syst. Biol. 61: 539-542.
Stamatakis, A. (2006): RAxML-VI-HPC: Maximum Likelihood-based phylogenetic analyses with thousands of taxa and mixed models. Bioinformatics 22: 2688-2690.
TTWG [Turtle Taxonomy Working Group, Rhodin, A.G.J., Iverson, J.B., Fritz, U., Georges, A., Shaffer, H.B., van Dijk, P.P.]. (2017): Turtles of the World: annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (8th Ed.). Lunenburg, Massachusetts, Chelonian Research Foundation and Turtle Conservancy (Chelonian Research Monographs 7), 292 pp.
All Time | Past 365 days | Past 30 Days | |
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Geochelone elegans is one of the most heavily traded tortoise species of the world, and confiscated tortoises are frequently released into the wild, without knowledge about their origin. Using for the first time samples from Pakistan and Sri Lanka, we examined phylogeographic differentiation of G. elegans using 2289 bp of mitochondrial DNA. We found weak intraspecific differentiation without a clear geographic pattern. We suggest that natural phylogeographic differentiation may have been already destroyed by massive releases of confiscated non-native tortoises. The presence of two distinct clades on Sri Lanka, however, could also be the result of a natural range expansion of a mainland lineage into the distribution range of a lineage endemic to Sri Lanka during Pleistocene low sea level stands. We propose that a systematic screening of the genetic differentiation of wild G. elegans should be conducted across its entire distribution range to provide a sound basis for the relocation of confiscated tortoises.
All Time | Past 365 days | Past 30 Days | |
---|---|---|---|
Abstract Views | 1036 | 354 | 37 |
Full Text Views | 249 | 2 | 0 |
PDF Views & Downloads | 196 | 4 | 0 |