Literaturdatenbank
Literaturdatenbank |
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Iverson, J. B., Brown, R. M., Akre, T. S., Near, T. J., Le, M., Thomson, R. C., & Starkey, D. E. (2007). In search of the tree of life for turtles. In B. H. Shaffer, N. N. FitzSimmons, A. Georges & A. G. J. Rhodin (Eds.), Defining Turtle Diversity: Proceedings of a Workshop on Genetics, Ethics, and Taxonomy of Tortoises and Freshwater Turtles (pp. 85–106). Lunenburg: Chelonian Research Foundation.
Added by: Sarina Wunderlich (06 Jul 2014 16:11:42 UTC) |
| Resource type: Book Article BibTeX citation key: Iverson2007c View all bibliographic details  |
Categories: General Keywords: Geoemydidae, Mauremys leprosa, Schildkröten - turtles + tortoises, Systematik - taxonomy Creators: Akre, Brown, FitzSimmons, Georges, Iverson, Le, Near, Rhodin, Shaffer, Starkey, Thomson Publisher: Chelonian Research Foundation (Lunenburg) Collection: Defining Turtle Diversity: Proceedings of a Workshop on Genetics, Ethics, and Taxonomy of Tortoises and Freshwater Turtles |
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| Abstract |
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Based on a thorough review of the literature, we provide a bibliography of papers featuring phylogenetic hypotheses for living turtles, a composite tree of all turtle species based on those hypotheses, a compilation of the most rigorously derived trees from those papers (i.e., using contemporary methods with bootstrapping), and supertrees for selected families of turtles using input trees from those most rigorous trees. These outputs allow us to identify the branches of the tree of life for turtles that are best supported as well as those most in need of study. With the exception of the Platysternidae and Chelydridae, the phylogenetic relationships among turtle families seem to be well-resolved and well-supported. Within families, the relationships among most genera are also well-resolved; however, the reciprocal monophyly of the South American and Australian chelids, the relationships among the genera allied to the chelid genera Batrachemys and Mesoclemmys, and the monophyly of the emydid genus Trachemys remain problematic. The relationships among species of trionychids, geoemydids, and testudinids are best resolved (since they are based on morphology, multiple mitochondrial genes, and at least one nuclear gene), and those for the podocnemids and pelomedusids are the least understood (with no complete published tree for either). The relationships among species in the following genera are most in need of additional phylogenetic study (highest need first): Pelusios, Podocnemis, Testudo, Kinosternon, Batrachemys (and close relatives), Elseya, Trachemys, Graptemys, and Pseudemys. Future work should endeavor to include the broadest taxonomic and geographic sampling possible (including type specimens) in order to maximize our understanding of the evolution of modern turtle diversity. A comprehensive multilocus approach (with numerous mtDNA and nDNA genes) will clearly be the best strategy for fully resolving the tree of life for turtles.
Added by: Sarina Wunderlich |