A5009443147- Genetic diversity and population structure
- Insect behavior and control techniques
- Genetic and phenotypic traits in livestock
- Genetic Mapping and Diversity in Plants and Animals
- Animal Behavior and Reproduction
- Evolution and Genetic Dynamics
- Forest Insect Ecology and Management
- Insect-Plant Interactions and Control
- Insect and Arachnid Ecology and Behavior
- Plant and animal studies
- Insect symbiosis and bacterial influences
- Insect Pest Control Strategies
- Insect and Pesticide Research
- Animal Nutrition and Physiology
- Insect Utilization and Effects
- Genomics and Phylogenetic Studies
- Morphological variations and asymmetry
- Molecular Biology Techniques and Applications
- Ultrasonics and Acoustic Wave Propagation
- Fish Ecology and Management Studies
- Animal Genetics and Reproduction
- Entomopathogenic Microorganisms in Pest Control
- Gene expression and cancer classification
- Neurobiology and Insect Physiology Research
- Non-Destructive Testing Techniques
University of Helsinki
2019-2024
Université des Antilles
2024
Sorbonne Université
2016-2024
Centre National de la Recherche Scientifique
2013-2024
Institut de Systématique, Évolution, Biodiversité
2016-2024
University of Hong Kong
2022-2023
Institut Agro Montpellier
2017-2020
Agropolis International
2020
Centre de Biologie et de Gestion des Populations
2017-2020
Université de Montpellier
2019-2020
Significance Divergent selection can lead to the evolution of distinct species, a process known as ecological speciation. Evidence for speciation in marine environment is scarce, and few examples have happened within time frame hundreds thousands millions years. We present evidence that European flounders Baltic Sea exhibiting different breeding behaviors are species pair arising from recent event The two lineages diverged less than 3,000 generations. This fastest ever reported any...
Deciphering invasion routes from molecular data is crucial to understanding biological invasions, including identifying bottlenecks in population size and admixture among distinct populations. Here, we unravel the of invasive pest Drosophila suzukii using a multi-locus microsatellite dataset (25 loci on 23 worldwide sampling locations). To do this, use approximate Bayesian computation (ABC), which has improved reconstruction routes, but can be computationally expensive. We our study...
The ancient fungus-growing termite (Mactrotermitinae) symbiosis involves the obligate association between a lineage of higher termites and basidiomycete Termitomyces cultivar fungi. Our investigation Macrotermes natalensis shows that Bacillus strains from M. colonies produce single major antibiotic, bacillaene A (1), which selectively inhibits known putatively antagonistic fungi Termitomyces. Comparative analyses genomes symbiotic revealed they are phylogenetically closely related to...
Abstract Evidence is accumulating that evolutionary changes are not only common during biological invasions but may also contribute directly to invasion success. The genomic basis of such still largely unexplored. Yet, understanding the response help predict conditions under which invasiveness can be enhanced or suppressed. Here, we characterized genome spotted wing drosophila Drosophila suzukii worldwide this pest insect species, by conducting a genome-wide association study identify genes...
ABSTRACT Phenotypic plasticity has been proposed as a mechanism that facilitates the success of biological invasions. In order to test hypothesis an adaptive role for in invasions, particular attention should be paid relationship between focal plastic trait, environmental stimulus and functional importance trait. The Drosophila wing is particularly amenable experimental studies phenotypic plasticity. Wing morphology known its variation under different temperatures, but this rarely...
The invasive pest Drosophila suzukii is characterized by a specific fresh-fruit targeting behavior and has quickly become menace for the fruit economy of newly infested North American European regions. D. carries strain endosymbiotic bacterium Wolbachia, named wSuz, which low infection frequency no reproductive manipulation capabilities in populations suzukii. To further understand nature wSuz biology assess its utility as tool controlling this pest's populations, we investigated prevalence...
Inbreeding depression refers to the reduced fitness of offspring produced by genetically-related individuals and is expected be rare in large, outbred populations. When it occurs, marked loss possible as large populations can carry a substantial load recessive harmful mutations which are normally sheltered at heterozygous state. Using experimental cross data genome-wide identity-by-descent (IBD) relationships from an marine nine-spined stickleback (Pungitius pungitius) population, we...
Comparative studies of quantitative and neutral genetic differentiation ( Q ST - F tests) provide means to detect adaptive population differentiation. However, tests can be overly liberal if the markers used deflate below its expectation, or conservative methodological biases lead inflated estimates. We investigated how marker type filtering criteria for selection influence comparisons through their effects on using simulations empirical data over 18 000 in silico genotyped microsatellites...
Mutation rate is a fundamental parameter in population genetics. Apart from being an important scaling for demographic and phylogenetic inference, it allows one to understand at what new genetic diversity generated the expected level of equilibrium. However, except well-established model organisms, accurate estimates de novo mutation rates are available very limited number organisms wild. We estimated (µ) two marine populations nine-spined stickleback (Pungitius pungitius) with aid several...
Abstract Aim To determine whether a contemporary population of the moose ( Alces alces ), large northern ungulate, retains genetic signatures post‐glacial recolonization and/or effects anthropogenic factors. We focused on investigating spatial structure and distribution diversity this species to clarify its still obscure history. Location Eastern Fennoscandia, Northern Europe. Methods In total, 574 Finnish Russian Karelian were genotyped at 16 microsatellite loci, mitochondrial control...
Heritable variation in traits under natural selection is a prerequisite for evolutionary response. While it recognized that trait heritability may vary spatially and temporally depending on which environmental conditions are expressed under, less known about the possibility genetic variance contributing to expected response given at different stages of ontogeny. Specifically, whether loci underlie expression throughout development thus providing an additional source act wild, unclear. Here...
Abstract Phenotypic plasticity is an important mechanism allowing adaptation to new environments and as such it has been suggested facilitate biological invasions. Under this assumption, invasive populations are predicted exhibit stronger plastic responses than native populations. Drosophila suzukii species whose males harbor a spot on the wing tip. In study, by manipulating developmental temperature, we compare phenotypic of size two with that population. We then results data obtained from...
The occurrence of similar phenotypes in multiple independent populations derived from common ancestral conditions (viz. parallel evolution) is a testimony evolution by natural selection. Parallel implies that share phenotypic response to selection pressure associated with habitat similarity. Examples at genetic and levels are fairly common, but the driving selective agents often remain elusive. Similarly, role plasticity facilitating early stages unclear. We investigated whether relaxation...
Phenotypic plasticity has been repeatedly suggested to facilitate adaptation new environmental conditions, as in invasions. Here, we investigate this possibility by focusing on the worldwide invasion of Drosophila suzukii: an invasive species that rapidly colonized all continents over last decade. This is characterized a highly developed ovipositor, allowing females lay eggs through skin ripe fruits. Using novel approach based combined use scanning electron microscopy and photogrammetry,...
Abstract Biological invasions offer particularly convenient situations to study phenotypic evolution in natural populations. In particular, the comparison of derived, invasive populations with ancestral extant allows investigate relative impact neutral demographic events, genetic constraints and selection on phenotypes. this paper, focusing worldwide invasion Drosophila suzukii (Matsumara, 1931), we how divergence among is constrained by correlations summarized covariance matrix G itself...
Additive and dominance genetic variances underlying the expression of quantitative traits are important quantities for predicting short-term responses to selection, but they notoriously challenging estimate in most non-model wild populations. Specifically, large-sized or panmictic populations may be characterized by low variance relatedness among individuals which, turn, can prevent accurate estimation parameters. We used estimates genome-wide identity-by-descent (IBD) sharing from autosomal...
Abstract Whether populations adapt to similar selection pressures using the same underlying genetic variants depends on population history and distribution of standing variation at metapopulation level. Studies sticklebacks provide a case in point: when colonizing adapting freshwater habitats, three-spined (Gasterosteus aculeatus) with high gene flow tend fix adaptive alleles major loci, whereas nine-spined (Pungitius pungitius) limited utilize more heterogeneous set loci. In accordance...
Abstract Crossovers in meiosis have an important role sexual reproduction ensuring the segregation of chromosomes and shuffling genetic material. Despite their profound importance, little is known about heritability repeatability crossover rate wild. We studied variation outbred nine- (Pungitius pungitius) three-spined (Gasterosteus aculeatus) stickleback populations to estimate its (h2) (R). Based on interpreted from parent–F1-offspring linkage maps created single nucleotide polymorphism...
Abstract Mutation rate is a fundamental parameter in population genetics. Apart from being an important scaling for demographic and phylogenetic inference, it allows one to understand at what new genetic diversity generated the expected level of equilibrium. However, except well-established model organisms, accurate estimates de novo mutation rates are available very limited number organisms wild. We estimated ( µ ) two marine populations nine-spined stickleback Pungitius pungitius with aid...
Abstract Whether populations adapt to similar selection pressures using the same underlying genetic variants depends on population history and distribution of standing variation at metapopulation level. Studies sticklebacks provide a case in point: when colonising adapting freshwater habitats, three-spined ( Gasterosteus aculeatus ; TSSs) with high gene flow tend fix adaptive alleles major loci, whereas nine-spined Pungitius pungitius NPSs) limited utilize more heterogeneous set loci. In...
Abstract Additive and dominance genetic variances underlying the expression of quantitative traits are important quantities for predicting short-term responses to selection, but they notoriously challenging estimate in most non-model wild populations. Specifically, large-sized or panmictic populations may be characterized by low variance relatedness among individuals which turn, can prevent accurate estimation parameters. We used estimates genome-wide identity-by-descent (IBD) sharing from...
Abstract Phenotypic plasticity has been repeatedly suggested to facilitate adaptation new environmental conditions, as in invasions. Here we investigate this possibility by focusing on the worldwide invasion of Drosophila suzukii : an invasive species that rapidly colonized all continents over last decade. This is characterized a highly developed ovipositor, allowing females lay eggs through skin ripe fruits. Using novel approach based combined use SEM and photogrammetry, quantified...