Molecular phylogenetics of shrews (Mammalia: Soricidae) reveal timing of transcontinental colonizations.

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Serval ID
serval:BIB_56F2651B0411
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Molecular phylogenetics of shrews (Mammalia: Soricidae) reveal timing of transcontinental colonizations.
Journal
Molecular Phylogenetics and Evolution
Author(s)
Dubey S., Salamin N., Ohdachi S.D., Barrière P., Vogel P.
ISSN
1055-7903 (Print)
ISSN-L
1055-7903
Publication state
Published
Issued date
2007
Peer-reviewed
Oui
Volume
44
Number
1
Pages
126-137
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
We sequenced 2167 base pairs (bp) of mitochondrial DNA cytochrome b and 16S, and 1390 bp of nuclear genes BRCA1 and ApoB in shrews taxa (Eulipotyphla, family Soricidae). The aim was to study the relationships at higher taxonomic levels within this family, and in particular the position of difficult clades such as Anourosorex and Myosorex. The data confirmed two monophyletic subfamilies, Soricinae and Crocidurinae. In the former, the tribes Anourosoricini, Blarinini, Nectogalini, Notiosoricini, and Soricini were supported. The latter was formed by the tribes Myosoricini and Crocidurini. The genus Suncus appeared to be paraphyletic and included Sylvisorex. We further suggest a biogeographical hypothesis, which shows that North America was colonized by three independent lineages of Soricinae during middle Miocene. Our hypothesis is congruent with the first fossil records for these taxa. Using molecular dating, the first exchanges between Africa and Eurasia occurred during the middle Miocene. The last one took place in the Late Miocene, with the dispersion of the genus Crocidura through the old world.
Keywords
Africa, Americas, Animals, Apolipoproteins B/genetics, Asia, BRCA1 Protein/genetics, Cell Nucleus/genetics, Cytochrome b Group/genetics, DNA, Mitochondrial/genetics, Models, Genetic, Molecular Sequence Data, Phylogeny, RNA, Ribosomal, 16S/genetics, Sequence Analysis, DNA, Shrews/classification, Shrews/genetics
Pubmed
Web of science
Create date
24/01/2008 17:33
Last modification date
20/08/2019 14:11
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