T. Giraud

An old inversion polymorphism involving giant mobile elements in an invasive fungal pathogen

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.

Repeated loss of function at HD mating-type genes and of recombination suppression without mating-type locus linkage in anther-smut fungi

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.

Generation of diversity in the blue cheese mold Penicillium roqueforti and identification of pleiotropic QTL for key cheese-making phenotypes

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

Different metabolite profiles across Penicillium roqueforti populations associated with ecological niche specialisation and domestication

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

Horizontal transfers between fungal Fusarium species contributed to successive outbreaks of coffee wilt disease

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

Sequential colonization events with restricted gene flow in a widespread European carnation species

This study investigates the colonization history of Dianthus carthusianorum using genome-wide SNPs and ABC-RF to reveal sequential East-West colonization events with restricted gene flow.

A new cheese population in Penicillium roqueforti and adaptation of the five populations to their ecological niche

The paper identifies a new population of Penicillium roqueforti specific to French Termignon cheese and examines adaptation of five populations to their ecological niches.

The fate of recessive deleterious or overdominant mutations near mating-type loci under partial selfing

This study examines how recessive deleterious or overdominant mutations near mating-type loci are maintained under partial selfing, finding that fungal-like mating-type loci reduce purging probability and increase purging time.

Dynamics of transposable element accumulation in the non-recombining regions of mating-type chromosomes in anther-smut fungi

This study examines TE accumulation dynamics in non-recombining regions of mating-type chromosomes in Microbotryum fungi, showing rapid TE expansion followed by a plateau and repeated expansion of specific TE superfamilies.

Stepwise recombination suppression around the mating-type locus in the fungus Schizothecium tetrasporum (Ascomycota, Sordariales)

This paper shows that recombination is suppressed around the mating-type locus in Schizothecium tetrasporum, a fungus in the Sordariales order, leading to self-fertile dikaryotic spores through stepwise recombination suppression.

Domestication in dry-cured meat Penicillium fungi: convergent specific phenotypes and horizontal gene transfers without strong genetic subdivision

Onset and stepwise extensions of recombination suppression are common in mating-type chromosomes of Microbotryum anther-smut fungi

This study identifies multiple independent events of recombination suppression and chromosomal rearrangements linking mating-type loci in Microbotryum fungi.

Tempo of degeneration across independently evolved non-recombining regions

The paper quantifies the tempo of degeneration in non-recombining regions by analyzing codon usage and synonymous substitutions in mating-type chromosomes of fungi.

Modeling the stepwise extension of recombination suppression on sex chromosomes and other supergenes through deleterious mutation sheltering

This paper models how recombination suppression on sex chromosomes and supergenes expands stepwise by sheltering recessive deleterious mutations, without requiring sexually antagonistic selection.

Evidence of an additional wild contributor, Malus orientalis Uglitzk., to the genome of cultivated apple varieties in the Caucasus and Iran

The paper identifies Malus orientalis as an additional contributor to cultivated apple genomes in the Caucasus and Iran, revealing multiple domestication origins and gene flow between wild and cultivated populations.

Large-scale geographic survey provides insights into the colonization history of a major aphid pest on its cultivated apple host in Europe, North America and North Africa

The paper investigates the colonization history of the rosy apple aphid across Europe, North America, and North Africa using genetic and microbiota data, finding weak genetic differentiation and limited role of secondary endosymbionts in its spread.

Europe as a bridgehead in the worldwide invasion history of grapevine downy mildew, Plasmopara viticola

The paper traces the invasion history of Plasmopara viticola, showing it originated from North America and spread globally through Europe as a secondary source.

Genetic diversity and population structure analyses in the Alpine plum (Prunus brigantina Vill.) confirm its affiliation to the Armeniaca section

This study analyzes the genetic diversity and population structure of Alpine plum to confirm its classification within the Armeniaca section and inform conservation strategies.

Population genomics reveals molecular determinants of specialization to tomato in the polyphagous fungal pathogen Botrytis cinerea

The paper identifies genomic features underlying host specialization in Botrytis cinerea populations adapted to tomato and grapevine.

Asian wild apples threatened by gene flow from domesticated apples and by their pestified pathogen

The paper examines gene flow from domesticated apples to wild apples and the spread of a pestified pathogen, revealing hybridization and virulence changes in fungal populations.

Strong effect of Penicillium roqueforti populations on volatile and metabolic compounds responsible for aromas, flavor and texture in blue cheeses

This study shows that P. roqueforti strains from different populations affect blue cheese characteristics like blue color, volatile compounds, and water activity, with Roquefort strains producing more aromatic compounds and lower water availability.

Identification of the first oomycete mating-type locus sequence in the grapevine downy mildew pathogen, Plasmopara viticola

The paper identifies the mating-type locus in Plasmopara viticola, revealing a unique heterozygosity asymmetry and implications for pathogen evolution and management.

Domestication of the emblematic white cheese-making fungus Penicillium camemberti and its diversification into two varieties

This study identifies domestication footprints in Penicillium camemberti and its relatives, revealing genetic and phenotypic changes associated with cheese-making adaptation.

Congruent population genetic structures and divergence histories in anther-smut fungi and their host plants Silene italica and the S. nutans species complex

The paper examines the population genetic structure of anther-smut fungi and their host plants, finding congruent divergence histories and no recent gene flow between fungal lineages parasitizing different host plant species.

Independent domestication events in the blue-cheese fungus Penicillium roqueforti

This study identifies two independent domestication events in Penicillium roqueforti, revealing distinct genetic and phenotypic adaptations for cheese production.

Differential gene expression is associated with degeneration of mating-type chromosomes in the absence of sexual antagonism

The paper shows that differential gene expression between mating types in the fungus Microbotryum lychnidis-dioicae is linked to sequence degeneration rather than sexual antagonism.