Alexandre Fournier results 12
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Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, we now provide an R packag...
Evolution of the rice blast pathogen on spatially structured rice landraces maintains multiple generalist fungal lineagesNARA Subscribed
Traditional agrosystems, where humans, crops and microbes have coevolved over long periods, can serve as models to understand the ecoevolutionary determinants of disease dynamics and help the engineering of durably resistant agrosystems. Here, we investigated the genetic and phenotypic relationship between rice ( Oryza sativa ) landraces and their rice blast pathogen ( Pyricularia oryzae ) in the traditional Yuanyang terraces...
Sexual reproduction in Ascomycetes is well described in several model organisms such as Neurospora crassa or Podospora anserina . Deciphering the biological process of sexual reproduction (from the recognition between compatible partners to the formation of zygote) can be a major advantage to better control sexually reproducing pathogenic fungi. In Pyricularia oryzae , the fungal pathogen causing blast diseases on several Poac...
Ecological and genomic vulnerability to climate change across native populations of Robusta coffee ( Coffea canephora )NARA Subscribed
The assessment of population vulnerability under climate change is crucial for planning conservation as well as for ensuring food security. Coffea canephora is, in its native habitat, an understorey tree that is mainly distributed in the lowland rainforests of tropical Africa. Also known as Robusta, its commercial value constitutes a significant revenue for many human populations in tropical countries. Comparing ecological and...
Summary Understanding the causes of population subdivision is of fundamental importance, as studying barriers to gene flow between populations may reveal key aspects of the process of adaptive divergence and, for pathogens, may help forecasting disease emergence and implementing sound management strategies. Here, we investigated population subdivision in the multihost fungus B otrytis cinerea based on comprehensive multiyear s...
Paths to selection on life history loci in different natural environments across the native range of A rabidopsis thalianaNARA Subscribed
Selection on quantitative trait loci ( QTL ) may vary among natural environments due to differences in the genetic architecture of traits, environment‐specific allelic effects or changes in the direction and magnitude of selection on specific traits. To dissect the environmental differences in selection on life history QTL across climatic regions, we grew a panel of interconnected recombinant inbred lines ( RIL s) of Arabidops...
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