Research Topics
Species | J PawlowskiSummaryAffiliation: University of Geneva Country: Switzerland Publications
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Detail Information
Publications
Phylogenetic position of Gromia oviformis Dujardin inferred from nuclear-encoded small subunit ribosomal DNAFabien Burki
Department of Zoology and Animal Biology, University of Geneva, , Switzerland
Protist 153:251-60. 2002..Because the Cercozoa are related to the Foraminifera based on other molecular data, we propose that most protists possessing filopodia, reticulopodia and axopodia have a common origin...
How many novel eukaryotic 'kingdoms'? Pitfalls and limitations of environmental DNA surveysCedric Berney
Department of Zoology and Animal Biology, University of Geneva, CH 1211 Geneva 4, Switzerland
BMC Biol 2:13. 2004....
The evolution of early ForaminiferaJan Pawlowski
Department of Zoology and Animal Biology, University of Geneva, Sciences III, 1211 Geneva 4, Switzerland
Proc Natl Acad Sci U S A 100:11494-8. 2003..Our findings indicate that the early Foraminifera were an important component of Neoproterozoic protistan community, whose ecological complexity was probably much higher than has been generally accepted...
Molecular identification of algal endosymbionts in large miliolid Foraminifera: 2. DinofiagellatesJ Pawlowski
Department of Zoology and Animal Biology, University of Geneva, Switzerland
J Eukaryot Microbiol 48:368-73. 2001....
Bipolar gene flow in deep-sea benthic foraminiferaJ Pawlowski
Department of Zoology and Animal Biology, University of Geneva, Sciences III, 30, Quai Ernest Ansermet, CH 1211 Geneve 4, Switzerland
Mol Ecol 16:4089-96. 2007....
Small subunit ribosomal DNA suggests that the xenophyophorean Syringammina corbicula is a foraminiferanJan Pawlowski
Department of Zoology and Animal Biology, University of Geneva, CH 1211 Geneva 4, Switzerland
J Eukaryot Microbiol 50:483-7. 2003..Our results are congruent with observations of similar cytoplasmic organisation in Rhizammina and Syringammina. Thus, the Xenophyophorea appear to be a highly specialised group of deep-sea Foraminifera...
Molecular identification of algal endosymbionts in large miliolid foraminifera: 1. ChlorophytesJ Pawlowski
Department of Zoology and Animal Biology, University of Geneva, Chene Bougeries Geneva, Switzerland
J Eukaryot Microbiol 48:362-7. 2001..Several foraminiferal species share the same symbiont type, but only one species, Archaias angulatus, was found to bear more than one type...
Untangling the phylogeny of amoeboid protistsJan Pawlowski
Department of Zoology and Animal Biology, University of Geneva, Geneva, Switzerland
J Eukaryot Microbiol 56:16-25. 2009..Finally, we highlight the interest of Amoebozoa and Rhizaria for understanding eukaryotic evolution and suggest that resolving their phylogenies will be among the main challenges for future phylogenomic analyses...
Molecular evidence that Reticulomyxa filosa is a freshwater naked foraminiferJ Pawlowski
Department of Zoology and Animal Biology, University of Geneva, Chêne Bougeries, Switzerland
J Eukaryot Microbiol 46:612-7. 1999..and Ammonia sp. The analysis of both data sets clearly shows that R. filosa branches within the clade of foraminifera, suggesting that R. filosa is in fact a freshwater naked foraminiferan...
SSU rRNA-based phylogenetic position of the genera Amoeba and Chaos (Lobosea, Gymnamoebia): the origin of gymnamoebae revisitedI Bolivar
Department of Zoology and Animal Biology, University of Geneva, Switzerland
Mol Biol Evol 18:2306-14. 2001..This clade, however, is not statistically supported by SSU rRNA gene sequences and further analysis of protein sequence data will be necessary to test the monophyly of gymnamoebae...
A molecular time-scale for eukaryote evolution recalibrated with the continuous microfossil recordCedric Berney
Department of Zoology and Animal Biology, University of Geneva, Sciences III, 30, Quai Ernest Ansermet, 1211 Geneva 4, Switzerland
Proc Biol Sci 273:1867-72. 2006..Our results indicate that most Proterozoic fossils of possible eukaryotic origin cannot be confidently assigned to extant lineages and should therefore not be used as calibration points in molecular dating...
Small-subunit ribosomal RNA gene sequences of Phaeodarea challenge the monophyly of Haeckel's RadiolariaStephane Polet
Department of Zoology and Animal Biology, University of Geneva, Sciences III, CH-1211 Geneva 4, Switzerland
Protist 155:53-63. 2004..Our study also confirms the common origin of Acantharea and Polycystinea, which form a sister-group to the Cercozoa, and allows a phylogenetic reinterpretation of the morphological features of the three radiolarian groups...
Extreme differences in rates of molecular evolution of foraminifera revealed by comparison of ribosomal DNA sequences and the fossil recordJ Pawlowski
Département de Zoologie et Biologie Animale, Universite de Geneve, Switzerland
Mol Biol Evol 14:498-505. 1997..The use of the maximum-likelihood method and limitation of analyzed sites to the most conserved parts of the SSU rRNA molecule render molecular and paleontological data generally congruent...
Molecular identification of developmental stages in Opecoelidae (Digenea)O Jousson
Département de Zoologie et Biologie Animale, Universite de Geneve, Chêne Bougeries, Switzerland
Int J Parasitol 29:1853-8. 1999..This work also revealed that cercariae of the same species are able to infect more than one gastropod host species, suggesting that the specificity for the first intermediate host within the Digenea may be lower than previously thought...
Early origin of foraminifera suggested by SSU rRNA gene sequencesJ Pawlowski
Département de Zoologie et Biologie Animale, Universite de Geneve, Switzerland
Mol Biol Evol 13:445-50. 1996..Foraminifera are clearly among the earliest eukaryotes with mitochondria, but because of the peculiar nature of their SSU genes we cannot be certain that they diverged first, as our data suggest...
Molecular evidence of cryptic speciation in planktonic foraminifers and their relation to oceanic provincesC de Vargas
Département de Zoologie et Biologie Animale, Universite de Geneve, 1224 Chêne Bougeries, Switzerland
Proc Natl Acad Sci U S A 96:2864-8. 1999....
Molecular versus taxonomic rates of evolution in planktonic foraminiferaC de Vargas
Département de Zoologie et Biologie Animale, Universite de Geneve, Chêne Bougeries, CH 1224, Switzerland
Mol Phylogenet Evol 9:463-9. 1998..site/10(9) years. Assuming that the fast rates result from recent accelerations, the globorotaliids have basically much slower molecular evolutionary rates than the globigerinids, in opposition to the fossil data...
Origin of the Mesozoa inferred from 18S rRNA gene sequencesJ Pawlowski
Département de Zoologie et Biologie Animale, Universite de Geneve, Switzerland
Mol Biol Evol 13:1128-32. 1996..Our data indicate probably separate origins of rhombozoids and orthonectids, suggesting that their placement in the same phylum needs to be revised...
Molecular phylogeny of Mesometridae (Trematoda, Digenea) with its relation to morphological changes in parasitesO Jousson
Département de Zoologie et Biologie Animale, Universite de Geneve, Chêne Bougeries, Suisse
Parasite 5:365-9. 1998..It consists mainly in changes from elongated to subcircular forms, regression of the pharynx, and the development of a strong accessory attachment organ...
Analysis of expressed sequence tags from a naked foraminiferan Reticulomyxa filosaFabien Burki
University of Geneva, Department of Zoology and Animal Biology, Geneva, Israel
Genome 49:882-7. 2006....
Monophyly of Rhizaria and multigene phylogeny of unicellular bikontsFabien Burki
Department of Zoology and Animal Biology, University of Geneva, Geneva, Switzerland
Mol Biol Evol 23:1922-30. 2006..This may be due to an acceleration of evolutionary rates in some bikont phyla or be related to their rapid diversification in the early evolution of eukaryotes...
Structure, expression and function of Allomyces arbuscula CDP II (metacaspase) geneMukti Ojha
Department of Biochemistry, University of Geneva, Sciences II, 30 Quai Ernest Ansermet, 1211 Geneva 4, Switzerland
Gene 457:25-34. 2010..The enzyme activity is inhibited by EDTA-EGTA, cysteine protease inhibitors and a specific peptide inhibitor Ac GVRCHCL TFA, but not by E64, although a potent inhibitor of cysteine proteases...
Higher-level phylogeny of Foraminifera inferred from the RNA polymerase II (RPB1) geneDavid Longet
Department of Zoology and Animal Biology, University of Geneva, Sciences III, 30, Quai Ernest Ansermet, 1211 Geneva 4, Switzerland
Eur J Protistol 43:171-7. 2007..In the light of our study, RPB1 appears as a valuable phylogenetic marker, particularly useful for groups of protists showing extreme variations of evolutionary rates in ribosomal genes...
Evolution of dark-spored Myxomycetes (slime-molds): molecules versus morphologyAnna Maria Fiore-Donno
University of Geneva, Department of Zoology and Animal Biology, 30, quai E Ansermet, 1211 Geneva 4, Switzerland
Mol Phylogenet Evol 46:878-89. 2008..Our study allows the reappraisal of morphological and developmental characters in the light of molecular data and sets foundations for a new classification of Myxomycetes...
Phylogenomics reveals a new 'megagroup' including most photosynthetic eukaryotesFabien Burki
Department of Zoology and Animal Biology, University of Geneva, Geneva 4, Switzerland
Biol Lett 4:366-9. 2008..At its deepest level, the tree of eukaryotes now receives strong support for two monophyletic megagroups comprising most of the eukaryotic diversity...
Precambrian biota: protistan origin of trace fossils?Jan Pawlowski
Department of Zoology and Animal Biology, University of Geneva, Sciences III, 1211 Geneva 4, Switzerland
Curr Biol 19:R28-30. 2009....
Short rDNA barcodes for species identification in foraminiferaJan Pawlowski
Department of Zoology and Animal Biology, University of Geneva, CH 1211 Geneva 4, Switzerland
J Eukaryot Microbiol 57:197-205. 2010..We propose that this relatively short region, averaging 50-60 nt in length, could be an ideal barcode for identification of foraminifera in environmental samples using massive sequencing approach...
Phylogenomics reshuffles the eukaryotic supergroupsFabien Burki
Department of Zoology and Animal Biology, University of Geneva, Geneva, Switzerland
PLoS ONE 2:e790. 2007..Yet, the composition of these large assemblages and their relationships remain controversial...
Phylogeny of lobose amoebae based on actin and small-subunit ribosomal RNA genesJosé F Fahrni
Department of Zoology and Animal Biology, University of Geneva, Geneva, Switzerland
Mol Biol Evol 20:1881-6. 2003....
Revised small subunit rRNA analysis provides further evidence that Foraminifera are related to CercozoaCedric Berney
Department of Zoology and Animal Biology, University of Geneva, Geneva, Switzerland
J Mol Evol 57:S120-7. 2003..Our study confirms the utility of SSU rDNA as a phylogenetic marker of megaevolutionary history, provided that the artifacts due to the heterogeneity of substitution rates in ribosomal genes are circumvented...
Tempo and mode of spliceosomal intron evolution in actin of foraminiferaJérôme Flakowski
Department of Zoology and Animal Biology, University of Geneva, Sciences III, 30 Quai Ernest Ansermet, CH 1211, Geneva 4, Switzerland
J Mol Evol 63:30-41. 2006....
Foraminifera and Cercozoa share a common origin according to RNA polymerase II phylogeniesDavid Longet
Dept of zoology and animal biology, University of Geneva, Sciences III, 30 Quai Ernest Ansermet, , Switzerland
Int J Syst Evol Microbiol 53:1735-9. 2003..Analysis of our data confirms a close relationship between Foraminifera and Cercozoa and points to Gromia as the closest relative of Foraminifera...
Molecular evidence for host-symbiont specificity in soritid foraminiferaLydia Garcia-Cuetos
Department of Zoology and Animal Biology, University of Geneva, Sciences III, 30 Quai Ernest Ansermet, , Switzerland
Protist 156:399-412. 2005..It is suggested that the strong host-symbiont specificity observed in Soritinae is a combined effect of a selective recognition mechanism, vertical transmission of symbionts, and biogeographical isolation...
Mitochondrial genome of Savalia savaglia (Cnidaria, Hexacorallia) and early metazoan phylogenyF Sinniger
Department of Zoology and Animal Biology, Molecular Systematic Group, Science III, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneve 4, Switzerland
J Mol Evol 64:196-203. 2007..Our study suggests that mitochondrial genomes can be a source of potentially valuable information on the phylogeny of Hexacorallia and may provide new insights into the evolution of early metazoans...
Molecular phylogeny, evolutionary rates, and divergence timing of the symbiotic dinoflagellate genus SymbiodiniumXavier Pochon
Department of Zoology and Animal Biology, University of Geneva, 30 Quai Ernest Ansermet, 1211 Geneva 4, Switzerland
Mol Phylogenet Evol 38:20-30. 2006..Our analysis suggests that Symbiodinium originated in early Eocene, and that the majority of extant lineages diversified since mid-Miocene, about 15 million years ago...
Molecular phylogenetic analysis places Percolomonas cosmopolitus within Heterolobosea: evolutionary implicationsSergey I Nikolaev
Department of Evolutionary Biochemistry, A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
J Eukaryot Microbiol 51:575-81. 2004..The first Bayesian analysis of a large taxon sampling of heterolobosean SSU rRNA genes clarifies the phylogenetic relationships within this group...
Freshwater foraminiferans revealed by analysis of environmental DNA samplesMaria Holzmann
, , 154, Route de Malagnou, , Switzerland
J Eukaryot Microbiol 50:135-9. 2003..The results of our study challenge the traditional view of Foraminifera as essentially marine organisms, and provide a conceptual framework for charting the molecular diversity of freshwater granuloreticulosan protists...
Unexpected foraminiferal diversity revealed by small-subunit rDNA analysis of Antarctic sedimentAndrea Habura
Wadsworth Center, P O Box 509, Albany, New York 12201, USA
J Eukaryot Microbiol 51:173-9. 2004..The approach outlined here represents a powerful strategy for exploring the total diversity of benthic foraminiferal communities...
The twilight of Heliozoa and rise of Rhizaria, an emerging supergroup of amoeboid eukaryotesSergey I Nikolaev
A. N. Belozersky Institute of Physico-Chemical Biology, Department of Evolutionary Biochemistry, Moscow State University, Moscow 119992, Russia
Proc Natl Acad Sci U S A 101:8066-71. 2004....
First insights into the biodiversity and biogeography of the Southern Ocean deep seaAngelika Brandt
Zoological Museum Hamburg, Martin Luther King Platz 3, 20146 Hamburg, Germany
Nature 447:307-11. 2007..Our findings challenge suggestions that deep-sea diversity is depressed in the Southern Ocean and provide a basis for exploring the evolutionary significance of the varied biogeographic patterns observed in this remote environment...
A novel polyubiquitin structure in Cercozoa and Foraminifera: evidence for a new eukaryotic supergroupJohn M Archibald
Canadian Institute for Advanced Research, Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada
Mol Biol Evol 20:62-6. 2003..This character strongly suggests that Cercozoa and Foraminifera are close relatives and form a new "supergroup" of eukaryotes...
higher-order phylogeny of plasmodial slime molds (Myxogastria) based on elongation factor 1-A and small subunit rRNA gene sequencesAnne Marie Fiore-Donno
Department of Biology, University of York, Box 373, Heslington, York, YO10 5YW, United Kingdom
J Eukaryot Microbiol 52:201-10. 2005..This suggests that spore pigmentation is an evolutionarily conservative character in myxogastrians, and that the simple morphology of echinostelids is not a derived feature...
Phylogenetic position of Multicilia marina and the evolution of AmoebozoaSergey I Nikolaev
Department of Evolutionary Biochemistry, AN Belozersky Institute of Physico-Chemical Biology, Moscow State University, Russia
Int J Syst Evol Microbiol 56:1449-58. 2006..This is the first report showing strong support for a clade containing all flagellated amoebozoans and we discuss the position of the root of the phylum Amoebozoa in the light of this result...
Phylogenetic analysis and real time PCR detection of a presumbably undescribed Peronospora species on sweet basil and sageLassaad Belbahri
Laboratory of Applied Genetics, School of Engineering of Lullier, University of Applied Sciences of Western Switzerland, Jussy
Mycol Res 109:1276-87. 2005..In addition to this work, PCR primers for real time PCR analysis have been developed for the specific detection of this downy mildew pathogen from infected tissues or seeds. It is shown that these primers can also be used in classic PCR...
The testate lobose amoebae (order Arcellinida Kent, 1880) finally find their home within AmoebozoaSergey I Nikolaev
Department of Evolutionary Biochemistry, A N Belozersky Institute of Physico Chemical Biology, Moscow State University, Moscow, Russia
Protist 156:191-202. 2005....
Polyubiquitin insertions and the phylogeny of Cercozoa and RhizariaDavid Bass
Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
Protist 156:149-61. 2005..e. that the second insertion took place earlier, in the ancestral filosan, and was followed by three independent reversions to a single amino acid in Chlorarachnea, Metopion and Cercobodo...
A marine dinoflagellate, Amphidinium eilatiensis n. sp., from the benthos of a mariculture sedimentation pond in Eilat, IsraelJohn J Lee
Department of Biology, City College of City University of New York, New York, NY 10031, USA
J Eukaryot Microbiol 50:439-48. 2003..Amphidinium eilatiensis is genetically more closely related to A. carterae than to A. klebsii, with respectively 2.36% and 6.93% of sequence divergence...
Molecular phylogeny and classification of the lobose amoebaeAlexey Smirnov
Protist 156:129-42. 2005
