GIRAUD Tatiana

  • Ecologie, Systematique et evolution, CNRS Universite Paris Sud, Orsay, France
  • Adaptation, Behavior & Social Evolution, Bioinformatics & Computational Biology, Evolutionary Applications, Evolutionary Dynamics, Evolutionary Ecology, Genome Evolution, Genotype-Phenotype, Hybridization / Introgression, Life History, Molecular Evolution, Phylogenetics / Phylogenomics, Phylogeography & Biogeography, Population Genetics / Genomics, Reproduction and Sex, Speciation, Species interactions
  • recommender

2009 Directrice de Recherches CNRS Laboratoire d’Ecologie, Systématique et Evolution, Université Paris Sud. 2004 HDR 2001 Chargé de recherche CNRS Laboratoire d’Ecologie, Systématique et Evolution, Université Paris Sud. 2000 2001 Post-doc Laboratoire d’Ecologie, Systématique et Evolution, Université Paris Sud. 1999 2000 Post-doc Institut de Zoologie et d’Ecologie Animale, Université de Lausanne. 1998-1999 ATER Université Paris 13. 1995-1998 Thèse. INRA, Versailles. 1994-1995 DEA Biodiversité, Génétique et Evolution, INAPG-Université Paris 6 1992-1995 INA-PG (Institut National Agronomique de Paris-Grignon).

2 recommendations

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Genomic imprinting mediates dosage compensation in a young plant XY system
Aline Muyle, Niklaus Zemp, Cecile Fruchard, Radim Cegan, Jan Vrana, Clothilde Deschamps, Raquel Tavares, Franck Picard, Roman Hobza, Alex Widmer, Gabriel Marais

Recommended by Tatiana Giraud and Judith Mank based on reviews by 3 anonymous reviewers
Dosage compensation by upregulation of maternal X alleles in both males and females in young plant sex chromosomes

Sex chromosomes evolve as recombination is suppressed between the X and Y chromosomes. The loss of recombination on the sex-limited chromosome (the Y in mammals) leads to degeneration of both gene expression and gene content for many genes [1]. Loss of gene expression or content from the Y chromosome leads to differences in gene dose between males and females for X-linked genes. Because expression levels are often correlated with gene dose [2], these hemizygous genes have a lower expression leve...

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MaxTiC: Fast ranking of a phylogenetic tree by Maximum Time Consistency with lateral gene transfers
Cédric Chauve, Akbar Rafiey, Adrian A. Davin, Celine Scornavacca, Philippe Veber, Bastien Boussau, Gergely J Szöllosi, Vincent Daubin, and Eric Tannier

Recommended by Tatiana Giraud and Toni Gabaldon based on reviews by Mukul Bansal, Alexandros Stamatakis and 2 anonymous reviewers
Dating nodes in a phylogeny using inferred horizontal gene transfers

Dating nodes in a phylogeny is an important problem in evolution and is typically performed by using molecular clocks and fossil age estimates [1]. The manuscript by Chauve et al. [2] reports a novel method, which uses lateral gene transfers to help ordering nodes in a species tree. The idea is that a lateral gene transfer can only occur between two species living at the same time, which indirectly informs on node relative ages in a phylogeny: the donor species cannot be more recent than the r...


1 review

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Fine-grained habitat-associated genetic connectivity in an admixed population of mussels in the small isolated Kerguelen Islands
Christelle FraĂŻsse, Anne Haguenauer, Karin Gerard, Alexandra Anh-Thu Weber, Nicolas Bierne, Anne Chenuil

Recommended by Marianne Elias based on reviews by Thomas Broquet and Tatiana Giraud
Introgression from related species reveals fine-scale structure in an isolated population of mussels and causes patterns of genetic-environment associations

Assessing population connectivity is central to understanding population dynamics, and is therefore of great importance in evolutionary biology and conservation biology. In the marine realm, the apparent absence of physical barriers, large population sizes and high dispersal capacities of most organisms often result in no detectable structure, thereby hindering inferences of population connectivity. In a review paper, Gagnaire et al. [1] propose several ideas to improve detection of population c...