Ecological and Evolutionary Science
Research Article | Ecological and Evolutionary ScienceFitness Cost Evolution of Natural Plasmids of Staphylococcus aureusPlasmids are major agents in the spread of antibiotic resistance genes among bacteria. How plasmids and their hosts coevolve to reduce the fitness cost associated with plasmid carriage when bacteria grow in an antibiotic-free environment is not well understood.
Research Article | Ecological and Evolutionary ScienceConvergent Adaptation to Quantitative Host Resistance in a Major Plant PathogenUnderstanding the genetic basis of pathogen adaptation to quantitative resistance in plants has a key role to play in establishing durable strategies for resistance deployment. In this context, a population genomic approach was developed for a major plant pathogen (the fungus Pseudocercospora fijiensis causing black leaf streak disease of banana) whereby samples from new resistant banana hybrids were compared with samples from...
Research Article | Ecological and Evolutionary ScienceMultiple Pathways to Homothallism in Closely Related Yeast Lineages in the BasidiomycotaSexual reproduction is important for the biology of eukaryotes because it strongly impacts the dynamics of genetic variation. In fungi, although sexual reproduction is usually associated with the fusion between cells belonging to different individuals (heterothallism), sometimes a single individual is capable of completing the sexual cycle alone (homothallism).
Research Article | Ecological and Evolutionary ScienceCompetition Sensing Changes Antibiotic Production in StreptomycesBacteria secrete antibiotics to inhibit their competitors, but the presence of competitors can determine whether these toxins are produced. Here, we study the role of the competitive and resource environment on antibiotic production in Streptomyces, bacteria renowned for their production of antibiotics.
Research Article | Ecological and Evolutionary ScienceCytoplasmic Incompatibility Variations in Relation with Wolbachia cid Genes Divergence in Culex pipiensCulex pipiens mosquitoes are infected with wPip. These endosymbionts induce a conditional sterility called CI resulting from embryonic deaths, which constitutes a cornerstone for Wolbachia antivectorial methods.
Research Article | Ecological and Evolutionary ScienceEvolutionary Trajectory of the Replication Mode of Bacterial RepliconsChromosome replication is an essential process for cell division. The mode of chromosome replication has important impacts on the structure of the chromosome and replication speed.
Research Article | Ecological and Evolutionary ScienceEvolution in Long-Term Stationary-Phase Batch Culture: Emergence of Divergent Escherichia coli Lineages over 1,200 DaysBacteria have remarkable metabolic capabilities and adaptive plasticity, enabling them to survive in changing environments. In nature, bacteria spend a majority of their time in a state of slow growth or maintenance, scavenging nutrients for survival.
Research Article | Ecological and Evolutionary ScienceAt Least Seven Distinct Rotavirus Genotype Constellations in Bats with Evidence of Reassortment and Zoonotic TransmissionsThe increased research on bat coronaviruses after severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV) allowed the very rapid identification of SARS-CoV-2. This is an excellent example of the importance of knowing viruses harbored by wildlife in general, and bats in particular, for global preparedness against emerging viral pathogens.
Research Article | Ecological and Evolutionary ScienceCompetitive Exclusion and Metabolic Dependency among Microorganisms Structure the Cellulose Economy of an Agricultural SoilOur study reveals the ecogenomic traits of microorganisms participating in the cellulose economy of soil. We identified three major categories of participants in this economy: (i) independent primary degraders, (ii) interdependent primary degraders, and (iii) secondary consumers (mutualists, opportunists, and parasites).
Research Article | Ecological and Evolutionary ScienceParacoccidioides Genomes Reflect High Levels of Species Divergence and Little Interspecific Gene FlowParacoccidioides is the causal agent of a systemic mycosis in Latin America. Most of the inference of the evolutionary history of Paracoccidioides has used only a few molecular markers.