Gabriel A B Marais
- Evidence for degeneration of the Y chromosome in the dioecious plant Silene latifoliaGabriel A B Marais
Universite de Lyon, Universite Lyon 1, Centre National de la Recherche Scientifique, UMR 5558, Laboratoire de Biometrie et Biologie Evolutive, 69622 Villeurbanne Cedex, France
Curr Biol 18:545-9. 2008..We detect signs of degeneration in most of the Y-linked gene sequences analyzed, similar to those of animal Y-linked and neo-Y chromosome genes...
- Footprints of inversions at present and past pseudoautosomal boundaries in human sex chromosomesClaire Lemaitre
, F 69622 cedex, France
Genome Biol Evol 2009:56-66. 2009..Our results strongly support the view that the most recent human strata have arisen by Y inversions and suggest that inversions have played a major role in the differentiation of our sex chromosomes...
- Structure and evolution of Apetala3, a sex-linked gene in Silene latifoliaRadim Cegan
Laboratory of Plant Developmental Genetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, V, V, I, Kralovopolska 135, CZ 612 65 Brno, Czech Republic
BMC Plant Biol 10:180. 2010..Recently, the gene AP3 was characterized in the dioecious plant species Silene latifolia. It was suggested that this gene had been transferred from an autosome to the Y chromosome...
- A White Campion (Silene latifolia) floral expressed sequence tag (EST) library: annotation, EST-SSR characterization, transferability, and utility for comparative mappingMaria Domenica Moccia
ETH Zurich, Institute of Integrative Biology IBZ, Universitaetstr, 16, 8092 Zurich, Switzerland
BMC Genomics 10:243. 2009..In the present study we constructed a normalized EST library from floral tissue of Silene latifolia with the aim to identify expressed genes and to develop polymorphic molecular markers...
- Synonymous codon usage, accuracy of translation, and gene length in Caenorhabditis elegansG Marais
Laboratoire Biométrie et Biologie Evolutive, UMR 5558, Universite Claude Bernard, Villeurbanne, France
J Mol Evol 52:275-80. 2001..The relationship between codon bias and gene length remains unexplained. Exploring the differences in gene expression process in eukaryotes and prokaryotes should provide new insights to understand this key question of codon usage...
- Can intra-Y gene conversion oppose the degeneration of the human Y chromosome? A simulation studyGabriel A B Marais
Universite Lyon 1, Centre National de la Recherche Scientifique, UMR5558, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, France
Genome Biol Evol 2:347-57. 2010..Exploring the parameter space showed that Y-Y gene conversion may be beneficial in most mammalian species, which is consistent with recent data in chimpanzees and mice...
- Hill-Robertson interference is a minor determinant of variations in codon bias across Drosophila melanogaster and Caenorhabditis elegans genomesGabriel Marais
Laboratoire Biométrie et Biologie Evolutive, UMR CNRS 5558, Universite Claude Bernard Lyon 1, Villeurbanne, France
Mol Biol Evol 19:1399-406. 2002..melanogaster. The case of C. elegans, which is highly self-fertilizing, is discussed. Our results suggest that HRi is a minor determinant of variations in codon bias across the genome...
- Evidence for widespread GC-biased gene conversion in eukaryotesEugénie Pessia
Universite Lyon 1, Centre National de la Recherche Scientifique, UMR5558, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne, Cedex, France
Genome Biol Evol 4:675-82. 2012..Importantly, the species showing a pattern consistent with gBGC are found in all the four major groups of eukaryotes studied, which suggests that gBGC may be widespread in eukaryotes...
- Rapid de novo evolution of X chromosome dosage compensation in Silene latifolia, a plant with young sex chromosomesAline Muyle
Laboratoire de Biométrie et Biologie Évolutive UMR 5558, CNRS Université Lyon 1, Villeurbanne, France
PLoS Biol 10:e1001308. 2012..Our results suggest that dosage compensation has evolved in plants and that it can quickly evolve de novo after the origin of sex chromosomes...
- The evolution of X chromosome inactivation in mammals: the demise of Ohno's hypothesis?Eugénie Pessia
Laboratoire de Biometrie et Biologie Evolutive, Centre National de la Recherche Scientifique, Universite Lyon 1, Bat Gregor Mendel, 16 rue Raphael Dubois, 69622, Villeurbanne Cedex, France
Cell Mol Life Sci 71:1383-94. 2014..If so few genes are compensated, then why has XCI evolved as a chromosome-wide mechanism? This and several other questions raised by the new data in mammals are discussed, and future research directions are proposed. ..
- Multiple nuclear gene phylogenetic analysis of the evolution of dioecy and sex chromosomes in the genus SileneGabriel A B Marais
Laboratoire de Biometrie et Biologie Evolutive, UMR5558, Universite Lyon 1, Centre National de la Recherche Scientifique, Villeurbanne, France
PLoS ONE 6:e21915. 2011..latifolia and its closest relatives. We estimate that sex chromosomes emerged soon after the split with the ancestor of S. viscosa, the probable closest non-dioecious S. latifolia relative among the species included in our study...
- Mutation rate and genome reduction in endosymbiotic and free-living bacteriaGabriel A B Marais
Universite de Lyon, Centre National de la Recherche Scientifique, UMR5558, Laboratoire de Biometrie et Biologie Evolutive, Villeurbanne Cedex, 69622, France
Genetica 134:205-10. 2008....
- MareyMap: an R-based tool with graphical interface for estimating recombination ratesClément Rezvoy
Universite de Lyon, France
Bioinformatics 23:2188-9. 2007..MareyMap has been made so that it can be easily upgraded with new data and interpolation methods. Availability: http://pbil.univ-lyon1.fr/software/mareymap/...
- Neutral effect of recombination on base composition in DrosophilaGabriel Marais
Laboratoire Biométrie et Biologie Evolutive, UMR 5558, Bâtiment Gregor Mendel Université Claude Bernard Lyon 1, 69622 Villeurbanne Cedex, France
Genet Res 81:79-87. 2003..We also confirmed that this neutral effect of recombination is the main determinant of the correlation between synonymous codon usage bias and recombination rate in Drosophila...
- Recombination rate and the distribution of transposable elements in the Drosophila melanogaster genomeCarene Rizzon
Laboratoire de Biometrie et Biologie Evolutive, Unité Mixte de Recherche Centre National de la Recherche Scientifique 5558, Universite Lyon 1, Cedex, France
Genome Res 12:400-7. 2002..that have differing influences on the effect of natural selection acting against the TE insertions...
- Patterns of selection against transposons inferred from the distribution of Tc1, Tc3 and Tc5 insertions in the mut-7 line of the nematode Caenorhabditis elegansCarene Rizzon
Biometrie, Biologie Evolutive, UMR 5558, Universite Lyon 1, 69622 Villeurbanne, France
Genetics 165:1127-35. 2003..elegans is determined essentially by just two factors: the pattern of insertions, which is a characteristic of each family, and the selection against insertions within coding regions...
- Does lack of recombination enhance asymmetric evolution among duplicate genes? Insights from the Drosophila melanogaster genomeYves Clément
Laboratoire de Biométrie et Biologie Évolutive UMR 5558, CNRS, Univ Lyon 1, Villeurbanne Cedex, France
Gene 385:89-95. 2006..However, further work is needed to clearly distinguish between sub-functionalization and neo-functionalization for the asymmetrically-evolving duplicate pairs that we found...
- High intrachromosomal similarity of retrotransposon long terminal repeats: evidence for homogenization by gene conversion on plant sex chromosomes?Eduard Kejnovsky
Laboratory of Plant Developmental Genetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, Kralovopolska 135, CZ 612 65 Brno, Czech Republic
Gene 390:92-7. 2007..These data can be explained by a homogenization process, such as gene conversion, working more intensively on the Y chromosome...