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Grayling (Thymallinae) phylogeny within salmonids: complete mitochondrial DNA sequences of Thymallus arcticus and Thymallus thymallus

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The phylogenetic relationships among the three subfamilies (Salmoninae, Coregoninae and Thymallinae) in the Salmonidae have not been addressed extensively at the molecular level. In this study, the whole mitochondrial genomes of two Thymallinae species, Thymallus arcticus and Thymallus thymallus were sequenced, and the published mitochondrial genome sequences of other salmonids were used for Bayesian and maximum-likelihood phylogenetic analyses. These results support an ancestral Coregoninae, branching within the Salmonidae, with Thymallinae as the sister group to Salmoninae.

Keywords: Salmonidae; Thymallinae; evolution; mitogenome; molecular phylogeny

Document Type: Research Article


Affiliations: 1: Department of Biology, University of Victoria, PO Box 3020 STN CSC, Victoria, British Columbia, V8W 3N5 Canada 2: Department of Biology, Turku, Turku 20014, Finland 3: Department of Molecular Biology and Biochemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, V5A1S6 Canada

Publication date: February 1, 2010

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