Entity

Time filter

Source Type


Lang A.,Unite de Phylogenie et de Genetique Moleculaires | Naciri Y.,Unite de Phylogenie et de Genetique Moleculaires | Naciri Y.,University of Geneva
Molecular Ecology Resources | Year: 2010

Primers for four loci that amplify cpDNA regions have been designed for population genetic analyses in Dicranum scoparium Hedw. and compared with trnL(UAA)5′exon-trnF. All loci showed intraspecific variation with a number of haplotypes ranging between two and six. trnH-psbADic showed an intercontinental disjunction, but no variability within the four Swiss populations surveyed, whereas the three remaining loci displayed intrapopulation variability in at least one population (rps19-rpl2, rpoB, trnT-rps4). These primers were additionally tested on 22 bryophytes and three fern species. The primers amplified mostly in mosses and liverworts, but less well in ferns, pointing to their evolutionary distance from the bryophytes. © 2009 Blackwell Publishing Ltd.


Naciri Y.,Unite de Phylogenie et de Genetique Moleculaires | Naciri Y.,University of Geneva | Cavat F.,Unite de Phylogenie et de Genetique Moleculaires | Jeanmonod D.,Unite de Phylogenie et de Genetique Moleculaires | Jeanmonod D.,University of Geneva
Molecular Phylogenetics and Evolution | Year: 2010

Based on morphological characters, the North African Silene patula has been divided into two subspecies, ssp. patula found North of Kabylies and Atlas Mountains, and ssp. amurensis found south of these regions. In order to test the hypothesis that S. patula could have derived from S. italica through the Sicilian Channel during the Messinian, we sequenced three chloroplast loci, trnH-psbA, trnS-trnG and rpl12-rps20. Fifteen haplotypes were found on 211 herbarium specimens, associated with a huge differentiation within species. The hypothesis that S. patula had independently evolved as two different subspecies North and South of the mountains is refuted and a morphological adaptation to different pollinators is suggested to explain the differences between the two taxa. The Kabylies-Numidie-Kroumirie gathers a large proportion of haplotypes, which points to this region as a probable refugium or place of origin from which spatial expansions have subsequently occurred towards Morocco and the Aurès Mountains. © 2009 Elsevier Inc. All rights reserved.

Discover hidden collaborations