Titre du document / Document title

Phylogenetic diversification within the Sorex cinereus group (Soricidae)

Auteur(s) / Author(s)

DEMBOSKI John R. ⁽¹⁾ ; COOK Joseph A. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ University of Alaska Museum and Biochemistry and Molecular Biology Program. University of Alaska Fairbanks, 907 Yukon Drive, Fairbanks, AK 99775-6960, ETATS-UNIS

Résumé / Abstract

Phylogenetic relationships among 8 members of the Sorex cinereus group (S. camtschatica, S. cinereus, S. haydeni, S. jacksoni, S. portenkoi, S. preblei, S. pribilofensis, and S. ugyunak) and S. longirostris were estimated using DNA sequence data from 2 mitochondrial genes, cytochrome b (1,140 base pairs) and nicotinamide adenine dinucleotide dehydrogenase 4 (582 base pairs). S. hoyi, S. monticolus, S. palustris, S. tenellus, S. trowbridgii, and S. vagrans also were included in our analyses. Phylogenetic analyses of the combined data recovered 2 major clades within the species group: a northern clade that includes the Beringian species (S. camtschatica, S. jacksoni, S. portenko, S. pribilofensis, and S. ugyunak), S. haydeni, and S. preblei and a southern clade that includes S. cinereus and S. longirostris. Mitochondrial DNA clades generally corresponded to previously identified morphological groups with 2 exceptions: inclusion of S. longirostris with S. cinereus in the southern clade and inclusion of S. preblei within the northern clade. With the exception of the 5 Beringian species, taxa were readily differentiated with strong bootstrap support in our topologies. We also noted phylogenetic concordance with the general ecological affiliations of each species; the northern clade generally includes xeric-affiliated species, whereas the southern clade includes species with mesic habitat affinities.

Revue / Journal Title

Journal of mammalogy   ISSN 0022-2372   CODEN JOMAAL 

Source / Source

2003, vol. 84, n^o1, pp. 144-158 [15 page(s) (article)] (2 p.1/2)

Langue / Language

Anglais

Editeur / Publisher

Brigham Young University, Department of Zoology, Provo, UT, ETATS-UNIS  (1919) (Revue)

Mots-clés anglais / English Keywords

Vertebrata ; Mammalia ; Rodentia ; Investigation method ; Biological evolution ; Biogeography ; Taxonomy ; Cytochrome b ; Mitochondrial DNA ; Interspecific comparison ; Phylogeny ;

Mots-clés français / French Keywords

Vertebrata ; Mammalia ; Rodentia ; Méthode étude ; Evolution biologique ; Soricidae ; Sorex cinereus ; Biogéographie ; Systématique ; Cytochrome b ; DNA mitochondrial ; Comparaison interspécifique ; Phylogenèse ;

Mots-clés espagnols / Spanish Keywords

Vertebrata ; Mammalia ; Rodentia ; Método estudio ; Evolución biológica ; Biogeografía ; Sistemática ; Citocromo b ; DNA mitocondrial ; Comparación interespecífica ; Filogénesis ;

Localisation / Location

INIST-CNRS, Cote INIST : 3037, 35400010422302.0130