Literaturdatenbank
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Bertolero, A., Sampayo, M. M., & Pretus, J. L. , Diversity of haplotypes in minorcan populations of hermann’s tortoise. Paper presented at XIII Congreso Espanol.
Added by: Admin (14 Aug 2008 20:32:44 UTC) |
| Resource type: Proceedings Article BibTeX citation key: Bertolero2006c View all bibliographic details  |
Categories: General Keywords: Genetik = genetics, Habitat = habitat, Schildkröten = turtles + tortoises, Südwesteuropa = South-Western Europe, Testudinidae, Testudo, Testudo hermanni Creators: Bertolero, Pretus, Sampayo Publisher: Sociedad de Ciencias Aranzadi Zientzi Elkartea Collection: XIII Congreso Espanol |
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| Abstract |
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Testudinidae Hermann’s tortoise Testudo hermanni hermanni is a common species in Minorca, being spread over almost all the island. Nevertheless, it does not form a single population, but has fragmented distribution. Its genetic composition allows us to study whether the populations are connected, thanks to the genetic flow generated by migrating animals. The goal of this study is to determine the links between the different populations by establishing the diversity of the haplotypes that are present here. From 32 blood samples from several points in Minorca, we studied fragments from the COI and ND4 genes, and from the control region of the mitochondrial DNA, and found six different haplotypes. In spite of the genetic dilution effect caused in a natural population by the release of individuals of different origin, we observed a certain concordance in the north-south axis for the gene COI, with clear differences between the Tirant and Cala Pilar populations and the one in the Barranc des Bec. As a result, the influence area of the COIa would spread to the southern half of the island, whereas the COIb allel would do so at least between Cala Pilar and Tirant. In Rafalet and Cala’n Porter both haplotypes of the COI gene appear, possibly because of the release of foreign tortoises at these sites. We need to analyse more sites and to use more genetic compositions to obtain a better genealogy of the populations of Hermann’s tortoise in Minorca. Thanks to micro-satellite analysis, in the future we may be able to confirm the north-south axis as well as the isolation of the Barranc des Bec.
Added by: Admin |