Molecular phylogenetics of shrews (Mammalia: Soricidae) reveal timing of transcontinental colonizations
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چکیده
منابع مشابه
Molecular phylogenetics of shrews (Mammalia: Soricidae) reveal timing of transcontinental colonizations.
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, Soricin...
متن کاملAllozyme differentiation in five species of North American shrews (Soricidae: Mammalia)
Starch gel electrophoresis was used to investigate patterns of genetic variation in five species of shrews from southern Illinois, and western Kentucky and Tennessee. Four of the five species occur sympatrically. Twenty-eight presumptive loci were examined in the following species: pygmy shrew Sorex hoyi Baird, southeastern shrew Sorex longirostris, northern short-tailed shrew Blarina brevicaud...
متن کاملSkeletal morphology of the forefoot in shrews (Mammalia: Soricidae) of the genus Cryptotis, as revealed by digital X-rays.
Variation in the forefoot skeleton of small-eared shrews (family Soricidae, genus Cryptotis) has been previously documented, but the paucity of available skeletons for most taxa makes assessment of the degrees of intraspecific and interspecific variation difficult. We used a digital X-ray system to extract images of the forefoot skeleton from 101 dried skins of eight taxa (seven species, includ...
متن کاملBiogeographic origin and radiation of the Old World crocidurine shrews (Mammalia: Soricidae) inferred from mitochondrial and nuclear genes.
The crocidurine shrews include the most speciose genus of mammals, Crocidura. The origin and evolution of their radiation is, however, poorly understood because of very scant fossil records and a rather conservative external morphology between species. Here, we use an alignment of 3560 base pairs of mitochondrial and nuclear DNA to generate a phylogenetic hypothesis for the evolution of Old Wor...
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ژورنال
عنوان ژورنال: Molecular Phylogenetics and Evolution
سال: 2007
ISSN: 1055-7903
DOI: 10.1016/j.ympev.2006.12.002