Tatiana Giraud

This study compares genomic adaptations of cheese-associated Nectriaceae fungi, revealing contrasting evolutionary paths involving gene family expansions, reductions, and horizontal gene transfer.

The paper investigates recombination near the mating-type locus in Cladorrhinum fungi, finding no evidence of large recombination suppression despite pseudo-homothallic life cycles.

This study shows that larger populations take longer to speciate, challenging the idea that ecological speciation drives much of species diversity.

The paper identifies a new Penicillium biforme lineage, cheesy, selected for food fermentation, with genetic and phenotypic differences from P. camemberti and traits advantageous for cheesemaking.

This study develops a unified Wright-Fisher model to analyze mutation fate on Y chromosomes and autosomes, showing overdominant mutations are more likely to fix on Y chromosomes due to segregation time effects.

The paper investigates recombination suppression around the mating-type locus in Schizothecium fungi, finding evolutionary strata associated with a diploid-like life cycle in pseudo-homothallic species.

EASYstrata is a workflow for genome annotation and divergence analysis that detects recombination suppression and its effects, validated on fungal, plant, and animal genomes.

The paper identifies a locus on the X chromosome in Cannabis sativa that contains three genes potentially controlling sex determination, with distinct expression patterns across monoecious and dioecious plants.

This paper uses mathematical modeling and simulations to show how recombination suppression on sex chromosomes expands through sheltering from deleterious mutations and lower mutational load.

The paper shows that balancing selection promotes pseudo-overdominance and recombination suppression in genomic regions.

The paper tests for sheltered load in fungal mating-type chromosomes by comparing growth rates of heterokaryons and homokaryons, finding faster growth in heterokaryons suggesting recessive deleterious mutations in non-recombining regions.

The paper shows that HD mating-type genes have lost function in three Microbotryum species, with PR genes controlling mating compatibility, and reports evolutionary strata from recombination suppression.

This study identifies pleiotropic QTLs for key cheese-making traits in Penicillium roqueforti by analyzing F1 hybrids from cheese and non-cheese populations.

The paper uses genome sequencing to delimit 18 species within the Schizothecium tetrasporum morpho-species, identifying three complexes based on genetic and breeding system differences.

The paper examines how speciation completion rates affect macroevolutionary diversification by comparing standard birth-death models with a protracted birth-death model.

This study sequences the giant Y chromosome of Silene latifolia and reveals its structure, function, and evolutionary history.

The paper identifies a non-recombining genomic region in the invasive fungus Cryphonectria parasitica linked to the mating-type locus, showing balanced haplotype segregation and potential adaptation through mobile elements.

The paper tests if genetic divergence in the MAT-proximal region of Podospora anserina suppresses recombination, finding that sequence divergence alone is insufficient.

This study identifies horizontal gene transfers from Fusarium oxysporum to Fusarium xylarioides as a mechanism driving the repeated outbreaks of coffee wilt disease.

The paper compares metabolite profiles across Penicillium roqueforti populations to identify differences linked to ecological niche specialization and domestication.

This study supports the theory that recombination suppression on sex chromosomes evolves due to lower-load advantages and sheltering effects from recessive deleterious mutations.

The paper provides chromosome-level genome assemblies for four species in the Podospora anserina complex, along with a dataset of 28 annotated genomes, revealing genomic similarities and phylogenetic conflicts.

This study analyzes whole-genome data from 98 Geotrichum candidum strains to show domestication led to genetic and phenotypic differentiation in cheese-making strains.