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

Détails

Ressource 1Télécharger: BIB_56F2651B0411.P001.pdf (789.48 [Ko])
Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_56F2651B0411
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Molecular phylogenetics of shrews (Mammalia: Soricidae) reveal timing of transcontinental colonizations.
Périodique
Molecular Phylogenetics and Evolution
Auteur(s)
Dubey S., Salamin N., Ohdachi S.D., Barrière P., Vogel P.
ISSN
1055-7903 (Print)
ISSN-L
1055-7903
Statut éditorial
Publié
Date de publication
2007
Peer-reviewed
Oui
Volume
44
Numéro
1
Pages
126-137
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
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.
Mots-clé
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
Création de la notice
24/01/2008 17:33
Dernière modification de la notice
20/08/2019 14:11
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