Phylogeny and dating of divergences within the genus Thymallus (Salmonidae: Thymallinae) using complete mitochondrial genomes

Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
Bo MaLihong Yuan

Abstract

The genus Thymallus has attracted increasing attention in recent years because of its sharp demographic decline. In this study, we reported four complete mitochondrial genomes in the Thymallus genus: Baikal-Lena grayling (T. arcticus baicalolenensis), lower Amur grayling (T. tugarinae), Yalu grayling (T. a. yaluensis), and Mongolian grayling (T. brevirostris). The total length of the four new grayling mtDNAs ranged from 16 658 to 16 663 bp, all of which contained 13 protein-coding genes, 22 tRNA genes, two rRNA genes, and one control region. The results suggested that mitochondrial genomes could be a powerful marker for resolving the phylogeny within Thymallinae. Our study validated that the Yalu grayling should be a synonym of the Amur grayling (T. grubii) at the whole mitogenome level. The phylogenetic and dating analyses placed the Amur grayling at the deepest divergence node within Thymallus, diverging at ∼14.95 Ma. The lower Amur grayling diverged at the next deepest node (∼12.14 Ma). This was followed by T. thymallus, which diverged at ∼9.27 Ma. The Mongolian grayling and the ancestor of the sister species, T. arcticus and T. arcticus baicalolenensis, diverged at ∼7.79 Ma, with T. arcticus and T. arcticus baicalolenensis ...Continue Reading

References

Jul 1, 1995·Journal of Molecular Evolution·W J LeeT D Kocher
Nov 8, 2002·Biochimica Et Biophysica Acta·Chris M WoodPeter Pärt
Oct 30, 2004·Environmental and Molecular Mutagenesis·Mohammed IslaihRonald K Newton
Nov 17, 2004·Systematic Biology·Mark PagelDaniel Barker
Dec 23, 2006·Pharmacogenomics·J S Greenberger
Oct 15, 2008·Systematic Biology·Alexandros StamatakisJacques Rougemont
Feb 10, 2012·Molecular Biology and Evolution·Robert LanfearStephane Guindon
Feb 24, 2012·Systematic Biology·Fredrik RonquistJohn P Huelsenbeck
Aug 8, 2012·Proceedings of the National Academy of Sciences of the United States of America·Thomas J NearW Leo Smith
Feb 6, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·O G PybusA Rambaut
Aug 13, 2013·Molecular Phylogenetics and Evolution·Markos A AlexandrouTodd H Oakley
Oct 18, 2013·Molecular Biology and Evolution·Koichiro TamuraSudhir Kumar
Apr 12, 2014·PLoS Computational Biology·Remco BouckaertAlexei J Drummond

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