Reference : Molecular phylogeny of the Cricetinae subfamily based on the mitochondrial cytochrome...
Scientific journals : Article
Life sciences : Biochemistry, biophysics & molecular biology
http://hdl.handle.net/2268/77207
Molecular phylogeny of the Cricetinae subfamily based on the mitochondrial cytochrome b and 12S rRNA genes and the nuclear vWF gene
English
Neumann, K. [> > > >]
Michaux, Johan mailto [Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Zoogéographie >]
Lebedev, V. [> > > >]
Yigit, N. [> > > >]
Colak, E. [> > > >]
Ivanova, N. [> > > >]
Poltoraus, A. [> > > >]
Surov, A. [> > > >]
Markov, G. [> > > >]
Maak, S. [> > > >]
Neumann, S. [> > > >]
Gattermann, R. [> > > >]
Apr-2006
Molecular Phylogenetics and Evolution
Academic Press Inc Elsevier Science
39
1
135-148
Yes (verified by ORBi)
International
1055-7903
1095-9513
San Diego
CA
[en] Cricetinae ; cytochrome b ; hamster ; phylogeny ; von Willebrand factor ; 12S rRNA
[en] Despite some popularity of hamsters as pets and laboratory animals there is no reliable phylogeny of the subfamily Cricetinae available so far. Contradicting views exist not only about the actual number of species but also concerning the validity of several genera. We used partial DNA sequences of two mitochondrial (cytochrome b, 12S rRNA) and one partial nuclear gene (von Willebrand Factor exon 28) to provide a first gene tree of the Cricetinae based on 15 taxa comprising six genera: According to our data, Palaearctic hamsters fall into three distinct phylogenetic groups: Phodopits, Mesocricetus, and Cricetus-related species which evolved during the late Miocene about 7-12 MY ago. Surprisingly, the genus Phodopus, which was previously thought to have appeared during the Pleistocene, forms the oldest clade. The largest number of extant hamster genera is found in a group of Cricetus-related hamsters. The genus Cricetulus itself proved to be not truly monophyletic with Cricetulus migratorius appearing more closely related to Tscherskia, Cricetus, and Allocricetulus. We propose to place the species within a new monotypic genus. Molecular clock calculations are not always in line with the dating of fossil records. DNA based divergence time estimates as well as taxonomic relationships demand a reevaluation of morphological characters previously used to identify fossils and extant hamsters. (c) 2006 Elsevier Inc. All rights reserved.
http://hdl.handle.net/2268/77207
10.1016/j.ympev.2006.01.010

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