http://publicationslist.org/data/Patrick.Basset/atom.xml Patrick Bassethttp://publicationslist.org/Patrick.Basset$basepathfavicon.icoRecent additions to Patrick Basset's PublicationsList.org pagehttp://publicationslist.org/publications.png2011-03-01T14:08:50Z http://publicationslist.org/Patrick.Basset/refid1 2011-03-01T13:37:12Z

During a 9-month period, 217 patients were newly diagnosed as MRSA carriers with a commercial rapid PCR-based test (GeneXpert). However, no MRSA was recovered by culturing the second swab in 61 of these patients. Further analyses showed that 28 (12.9%) patients harbored S. aureus isolates with a SCC element lacking the mecA gene and were thus wrongly considered as MRSA carriers.<br/><br/>D. S. Blanc, P. Basset, I. Nahimana-Tessemo, K. Jaton, G. Greub, G. Zanetti (2011) <i>J Clin Microbiol</i> <i></i> <i></i> 49: 4 722-724<br/>

http://publicationslist.org/Patrick.Basset/refid22 2010-12-21T10:27:35Z

P. Basset, E. Feil, G. Zanetti, D.S. Blanc (2011) <i>Genetics and Evolution of Infectious Diseases</i> 669-688<br/>

http://publicationslist.org/Patrick.Basset/refid5 2010-12-21T10:03:34Z

Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of nosocomial infections worldwide. To differentiate reliably among S. aureus isolates, we recently developed double locus sequence typing (DLST) based on the analysis of partial sequences of clfB and spa genes. In the present study, we evaluated the usefulness of DLST for epidemiological investigations of MRSA by routinely typing...<br/><br/>P Basset, L Senn, G Prod'hom, J Bille, P Francioli, G Zanetti, D S Blanc (2010) <i>Clin Microbiol Infect</i> <i></i> <i></i> 16: 8 1289-1296<br/>

http://publicationslist.org/Patrick.Basset/refid3 2010-12-21T10:12:52Z

Recent population genetic studies suggest that staphylococcal cassette chromosome mec (SCCmec) was acquired much more frequently than previously thought. In the present study, we aimed to investigate the diversity of SCCmec elements in a local methicillin-resistant Staphylococcus aureus (MRSA) population. Each MRSA isolate (one per patient) recovered in the Vaud canton of Switzerland from January ...<br/><br/>P. Basset, L. Senn, V. Vogel, G. Zanetti, D. S. Blanc (2010) <i>Antimicrob Agents Chemother</i> <i></i> <i></i> 54: 11 4589-4595<br/>

http://publicationslist.org/Patrick.Basset/refid4 2010-12-21T10:12:22Z

The population structure of Staphylococcus aureus is generally described as highly clonal and is consequently subdivided into several clonal complexes (CCs). Recent data suggested that recombination might occur more frequently within than among CCs. To test this hypothesis as well as to understand how genetic diversity is created in S. aureus, we analyzed a collection of 182 isolates with MLST and...<br/><br/>N. Basic-Hammer, V. Vogel, P. Basset, D. S. Blanc (2010) <i>Infect Genet Evol</i> <i></i> <i></i> 10: 7 1117-1123<br/>

http://publicationslist.org/Patrick.Basset/refid2 2010-12-21T10:03:34Z

Many species contain genetic lineages that are phylogenetically intermixed with those of other species. In the Sorex araneus group, previous results based on mtDNA and Y chromosome sequence data showed an incongruent position of Sorex granarius within this group. In this study, we explored the relationship between species within the S. araneus group, aiming to resolve the particular position of S....<br/><br/>G Yannic, S Dubey, J Hausser, P Basset (2010) <i>Mol Phylogenet Evol</i> <i></i> <i></i> 57: 3 1062-1071<br/>

http://publicationslist.org/Patrick.Basset/refid8 2010-12-21T10:03:34Z

Most hybrid zones have existed for hundreds or thousands of years but have generally been observed for only a short time period. Studies extending over periods long enough to track evolutionary changes in the zones or assess the ultimate outcome of hybridization are scarce. Here, we describe the evolution over time of the level of genetic isolation between two karyotypically different species of s...<br/><br/>G Yannic, P Basset, J Hausser (2009) <i>Heredity</i> <i></i> <i></i> 102: 6 616-625<br/>

http://publicationslist.org/Patrick.Basset/refid7 2010-12-21T10:10:59Z

To reliably differentiate among Staphylococcus aureus isolates we recently developed the Double Locus Sequence Typing (DLST) based on the analysis of partial sequences of clfB and spa genes. This method is highly discriminatory and gives unambiguous definition of types. The highly clonal population structure of S. aureus suggests that isolates with identical clfB or spa alleles belong to the same ...<br/><br/>P. Basset, N. Basic Hammer, G. Kuhn, V. Vogel, O. Sakwinska, D. S. Blanc (2009) <i>Infect Genet Evol</i> <i></i> <i></i> 9: 5 941-947<br/>

http://publicationslist.org/Patrick.Basset/refid6 2010-12-21T10:11:43Z

Ninety-six clinical isolates of Staphylococcus aureus from Nigeria were characterized phenotypically and genetically. Twelve multidrug-resistant methicillin (meticillin)-resistant S. aureus (MRSA) isolates carrying a new staphylococcal cassette chromosome mec element and a high proportion of Panton-Valentine leukocidin (PVL)-positive methicillin-susceptible S. aureus (MSSA) isolates were observed....<br/><br/>K. O. Okon, P. Basset, A. Uba, J. Lin, B. Oyawoye, A. O. Shittu, D. S. Blanc (2009) <i>J Clin Microbiol</i> <i></i> <i></i> 47: 9 3000-3003<br/>

http://publicationslist.org/Patrick.Basset/refid10 2010-12-21T10:10:12Z

Patterns of genetic differentiation among taxa at early stages of divergence provide an opportunity to make inferences about the history of speciation. Here, we conduct a survey of DNA-sequence polymorphism and divergence at loci on the autosomes, X chromosome, Y chromosome and mitochondrial DNA in samples of Mus domesticus, M. musculus and M. castaneus. We analyzed our data under a divergence wit...<br/><br/>A. Geraldes, P. Basset, B. Gibson, K. L. Smith, B. Harr, H.T. Yu, N. Bulatova, Y. Ziv, M. W. Nachman (2008) <i>Mol Ecol</i> <i></i> <i></i> 17: 24 5349-5363<br/>

http://publicationslist.org/Patrick.Basset/refid9 2010-12-21T10:03:34Z

Using one male-inherited, one female-inherited and eight biparentally inherited markers, we investigate the population genetic structure of the Valais shrew (Sorex antinorii) in the Swiss Alps. Bayesian analysis on autosomal microsatellites suggests a clear genetic differentiation between two groups of populations. This geographically based structure is consistent with two separate postglacial rec...<br/><br/>G Yannic, P Basset, J Hausser (2008) <i>Mol Ecol</i> <i></i> <i></i> 17: 18 4118-4133<br/>

http://publicationslist.org/Patrick.Basset/refid11 2010-12-21T10:05:15Z

Using one male-inherited, one female-inherited and eight biparentally inherited markers, we investigate the population genetic structure of the Valais shrew (Sorex antinorii) in the Swiss Alps. Bayesian analysis on autosomal microsatellites suggests a clear genetic differentiation between two groups of populations. This geographically based structure is consistent with two separate postglacial rec...<br/><br/>G Yannic, P Basset, J Hausser (2008) <i>Mol Ecol</i> <i></i> <i></i> : <br/>

http://publicationslist.org/Patrick.Basset/refid12 2010-12-21T10:05:15Z

In hybrid zones, endogenous counter-selection of hybrids is usually first expressed as reduced fertility or viability in hybrids of the heterogametic sex, a mechanism known as Haldane's rule. This phenomenon often leads to a differential of gene flow between sex-linked markers. Here, we address the possibility of a differential gene flow for Y chromosome, mtDNA and autosomal markers across the hyb...<br/><br/>G Yannic, P Basset, J Hausser (2008) <i>J Evol Biol</i> <i></i> <i></i> 21: 3 658-667<br/>

http://publicationslist.org/Patrick.Basset/refid13 2010-12-21T10:05:15Z

The species of the common shrew (Sorex araneus) group are morphologically very similar, but have undergone a spectacular chromosomal evolution. We investigate here the evolutionary history of the Sorex araneus group distributed in western Europe. In particular, we clarify the position of a difficult species, S. granarius, using sex-specific (mtDNA and Y-chromosome) markers. The karyotype of S. gra...<br/><br/>G Yannic, P Basset, J Hausser (2008) <i>Mol Phylogenet Evol</i> <i></i> <i></i> 47: 1 237-250<br/>

http://publicationslist.org/Patrick.Basset/refid14 2010-12-21T10:05:15Z

Robertsonian (Rb) fusions received large theoretical support for their role in speciation, but empirical evidence is often lacking. Here, we address the role of Rb rearrangements on the genetic differentiation of the karyotypically diversified group of shrews, Sorex araneus. We compared genetic structure between 'rearranged' and 'common' chromosomes in pairwise comparisons of five karyotypic taxa ...<br/><br/>P Basset, G Yannic, J Hausser (2008) <i>J Evol Biol</i> <i></i> <i></i> 21: 3 842-852<br/>

http://publicationslist.org/Patrick.Basset/refid15 2010-12-21T10:05:15Z

Individuals sampled in hybrid zones are usually analysed according to their sampling locality, morphology, behaviour or karyotype. But the increasing availability of genetic information more and more favours its use for individual sorting purposes and numerous assignment methods based on the genetic composition of individuals have been developed. The shrews of the Sorex araneus group offer good op...<br/><br/>P Basset, G Yannic, H Brunner, J Hausser (2007) <i>Cytogenet Genome Res</i> <i></i> <i></i> 116: 4 282-288<br/>

http://publicationslist.org/Patrick.Basset/refid18 2010-12-21T10:08:02Z

The extremely high rate of karyotypic evolution that characterizes the shrews of the Sorex araneus group makes this group an exceptionally interesting model for population genetics and evolutionary studies. Here, we attempted to map 46 microsatellite markers at the chromosome arm level using flow-sorted chromosomes from three karyotypically different taxa of the Sorex araneus group (S. granarius a...<br/><br/>P. Basset, G. Yannic, F. Yang, P.C. M. O'Brien, A.S. Graphodatsky, M. A. Ferguson-Smith, G. Balmus, V.T. Volobouev, J. Hausser (2006) <i>Chromosome Res</i> <i></i> <i></i> 14: 3 253-262<br/>

http://publicationslist.org/Patrick.Basset/refid17 2010-12-21T10:05:15Z

The species of the common shrew (Sorex araneus) group are morphologically very similar but exhibit high levels of karyotypic variation. Here we used genetic variation at 10 microsatellite markers in a data set of 212 individuals mostly sampled in the western Alps and composed of five karyotypic taxa (Sorex coronatus, Sorex antinorii and the S. araneus chromosome races Cordon, Bretolet and Vaud) to...<br/><br/>P Basset, G Yannic, J Hausser (2006) <i>Mol Ecol</i> <i></i> <i></i> 15: 6 1577-1587<br/>

http://publicationslist.org/Patrick.Basset/refid16 2010-12-21T10:08:41Z

The species and races of the shrews of the Sorex araneus group exhibit a broad range of chromosomal polymorphisms. European taxa of this group are parapatric and form contact or hybrid zones that span an extraordinary variety of situations, ranging from absolute genetic isolation to almost free gene flow. This variety seems to depend for a large part on the chromosome composition of populations, w...<br/><br/>P. Basset, G. Yannic, H. Brünner, J. Hausser (2006) <i>Evolution</i> <i></i> <i></i> 60: 8 1718-1730<br/>

http://publicationslist.org/Patrick.Basset/refid23 2011-03-01T13:55:56Z

The role of chromosomal rearrangements in the speciation process is much debated and many theoretical models have been developed. The shrews of the Sorex araneus group offer extraordinary opportunities to study the relationship between chromosomal variation and speciation. Indeed, this group of morphologically very similar species received a great deal of attention due to its karyotypic variabilit...<br/><br/>P Basset (2006) <br/>

http://publicationslist.org/Patrick.Basset/refid20 2010-12-21T10:18:09Z

Three sibling species of shrews, the common shrew (Sorex araneus), the Valais shrew (S. antinorii) and the Jersey shrew (S. coronatus) are morphologically similar. Different techniques based on karyorypes, morphology, biochemistry and genetic markers have been developed to identify individuals from these taxa. In this paper, we have used multiple microsatellite markers (L13, L14 and L99) to identi...<br/><br/>P. Basset, J. Hausser (2003) <i>Mammalia</i> 68: 2 245-252<br/>

http://publicationslist.org/Patrick.Basset/refid21 2010-12-21T10:22:00Z

One male inherited and 8 biparentaly inherited microsatellite markers developed in the shrew Sorex antinorii were used to analyse population of this species from the Valais mountainous region of Switzerland. The analysis of the Y-chromosome microsatellite showed a nearly complete absence of male gene flow between populations from the Simplon Pass and the St-Bernard pass. These results suggest that...<br/><br/>F. Fivaz , P. Basset , N. Lugon-Moulin, J. Hausser (2003) <i>Mammalia</i> 68: 2 253-262<br/>

http://publicationslist.org/Patrick.Basset/refid19 2010-12-21T10:05:53Z

Due to practical difficulties in obtaining direct genetic estimates of effective sizes, conservation biologists have to rely on so-called 'demographic models' which combine life-history and mating-system parameters with F-statistics in order to produce indirect estimates of effective sizes. However, for the same practical reasons that prevent direct genetic estimates, the accuracy of demographic m...<br/><br/>P Basset, F Balloux, N Perrin (2001) <i>Proc Biol Sci</i> <i></i> <i></i> 268: 1464 311-317<br/>