A5021070336- Genetic diversity and population structure
- Fish Ecology and Management Studies
- Plant and animal studies
- Genetic and phenotypic traits in livestock
- Marine and fisheries research
- Genomics and Phylogenetic Studies
- Forest Insect Ecology and Management
- Fish Biology and Ecology Studies
- Identification and Quantification in Food
- Plant Pathogens and Fungal Diseases
- Marine animal studies overview
- Molecular Biology Techniques and Applications
- Animal Behavior and Reproduction
- Arctic and Antarctic ice dynamics
- Insect and Pesticide Research
- Aerospace Engineering and Energy Systems
- Wildlife Ecology and Conservation
- Botany and Plant Ecology Studies
- Genetics, Bioinformatics, and Biomedical Research
- Insect and Arachnid Ecology and Behavior
- Environmental DNA in Biodiversity Studies
- Yeasts and Rust Fungi Studies
- Forest ecology and management
- Aquaculture Nutrition and Growth
- Horticultural and Viticultural Research
UMR BIOdiversity, GEnes & Communities
2009-2024
Université de Bordeaux
2009-2024
Centre d'Études Scientifiques et Techniques d'Aquitaine
2009-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
Ecologie Comportementale et Biologie des Populations de Poissons
2012-2020
Ecosystèmes, Biodiversité, Evolution
2012-2020
Nutrition Metabolism Aquaculture
2012-2020
Université de Pau et des Pays de l'Adour
2012-2017
Institut National de la Recherche Agronomique
2008-2015
University of Stirling
2009-2013
Abstract Successful hybridisation and subsequent introgression lead to the transfer of genetic material across species boundaries. In this process, relative abundance can play a significant role. If one is less abundant than other, its females will receive many heterospecific gametes, increasing mate‐recognition errors thus rate. Moreover, first‐generation hybrids also more likely mate with species, leading asymmetric introgression. These predictions have important fundamental consequences,...
Summary 1. We have little idea how landscape‐scale factors influence the success of wild bumblebee nests over time. Here for first time we use molecular markers to estimate within‐season changes in numbers nests. 2. Workers two species were sampled an arable landscape late May–June and July–August, represented each sample estimated. compare methods available nest number from such samples conclude that which allow heterogeneity probability capture provide best fit our data. Changes at points...
Dispersal ability is a key determinant of the propensity an organism to cope with habitat fragmentation and climate change. Here we quantify queen dispersal in two common bumblebee species arable landscape. was measured by taking DNA samples from workers spring summer, queens following spring, at 14 sites across The captured must be full sisters that were foraging previous year. A range sibship reconstruction methods compared using simulated data sets including or no genotyping errors....
Application of high-throughput sequencing platforms in the field ecology and evolutionary biology is developing quickly with introduction efficient methods to reduce genome complexity. Numerous approaches for complexity reduction have been developed using different combinations restriction enzymes, library construction strategies fragment size selection. As a result, choice which techniques use may become cumbersome, because it difficult anticipate number loci resulting from each method. We...
Somatic mutations potentially play a role in plant evolution, but common expectations pertaining to somatic remain insufficiently tested. Unlike most animals, the germline is assumed be set aside late development, leading expectation that plants accumulate along growth. Therefore, several predictions were made on fate of mutations: have generally low frequency tissues; at high higher chance intergenerational transmission; branching topology tree dictates mutation distribution; and exposure...
Abstract In this study, leaf morphology was assessed in a mixed oak stand (western France) using two geometric morphometric (landmark and outline) datasets one dataset of 19 measures. Adult oaks (817 oaks), comprising four white species (Quercus petraea, Q. robur, pubescens pyrenaica), were sampled for DNA extraction genetic analysis (nuclear microsatellites). Leaf on 336 oaks, pure hybrids as determined by assignment. This comparative study morphology, based the use free size methods set...
The reproductive system of hybrids is an important factor shaping introgression dynamics within species complexes. We combined paternity and parentage analyses with previous characterization by genetic assignment, to directly identify events that occurred a stand comprising four European white oak species. Comparing status parent pairs provided precise quantification hybridization rate, backcrosses, intraspecific matings in two life stages. detailed mating analysis revealed new findings on...
The worldwide increase of hybridization in different groups is thought to have become more important with the loss isolating barriers and introduction invasive species. This phenomenon could result extinction endemic study aims at investigating dynamics between threatened Lesser Antillean iguana (Iguana delicatissima) common green iguana) Antilles, as well assessing impact interspecific on decline I. delicatissima. 59 delicatissima (5 localities), 47 (12 localities) 27 hybrids who were all...
Abstract To assess the effects of altitude on level and structure genetic diversity, a survey was conducted in 12 populations sessile oak ( Quercus petraea ) located between 130 1660 m two parallel valleys northern side Pyrenees Mountains. Genetic diversity monitored at 16 nuclear microsatellite loci 5 chloroplast DNA (cpDNA) markers. The cpDNA suggested that extant both shared same source from plain. There no visible trend along altitude, even if indirect estimates effective population...
Habitat loss has led to fragmentation of populations many invertebrates, but social hymenopterans may be particularly sensitive habitat due their low effective population sizes. The impacts depend strongly on dispersal abilities, these are difficult quantify. Here, we quantify and compare abilities two bumblebee species, Bombus muscorum jonellus, in a model island system. We use microsatellites investigate genetic structuring, spatial patterns diversity. Populations both species showed...
Populations located at the rear-edge of a species' distribution may have disproportionate ecological and evolutionary importance for biodiversity conservation in changing global environment. Yet genetic studies such populations remain rare. This study investigates history North-African low latitude marginal Alnus glutinosa Gaertn., European tree species that plays significant role as keystone riparian ecosystems. We genotyped 551 adults from 19 across North Africa 12 microsatellite loci...
Abstract The rainbow trout, a carnivorous fish, displays ‘glucose-intolerant’ phenotype revealed by persistent hyperglycaemia when fed high carbohydrate diet (HighCHO). Epigenetics refers to heritable changes in gene activity and is closely related environmental thus metabolism adjustments governed nutrition. In this study we first assessed the trout liver whether how nutritional status affects global epigenome modifications targeting DNA methylation histone marks previously reported be...
Application of high-throughput sequencing technologies to microsatellite genotyping (SSRseq) has been shown remove many the limitations electrophoresis-based methods and refine inference population genetic diversity structure. We present here a streamlined SSRseq development workflow that includes development, multiplexed marker amplification sequencing, automated bioinformatics data analysis. illustrate its application five groups species across phyla (fungi, plant, insect fish) with...
Abstract Imperfect historical records and complex demographic histories present challenges for reconstructing the history of biological invasions. Here, we combine records, extensive worldwide genome-wide sampling, analyses to investigate global invasion Mimulus guttatus from North America Europe Southwest Pacific. By sampling 521 plants 158 native introduced populations genotyped at >44,000 loci, determined that invasive M. was first likely British Isles Aleutian Islands (Alaska),...
Environmental changes of biotic or abiotic nature during critical periods early development may exert a profound influence on physiological functions later in life. This process, named developmental programming can also be driven through parental nutrition. At molecular level, epigenetic modifications are the most likely candidate for persistent modulation genes expression In order to investigate induced by rainbow trout, we focused bnip3 and bnip3l paralogous known sensitive environmental...
Background and aims – Anadenanthera colubrina is a Neotropical native forest tree species with significant ecological importance in Seasonally Dry Tropical Forests. Developing genetic markers for this relevant conservation, breeding, evolutionary studies. Previously available A. consisted of few microsatellites. Next-generation sequencing (NGS) strategies allow simple cost-effective development new SSR loci from low-coverage whole genome shotgun sequencing. The main aim was to develop...
Streamlining the development and genotyping of microsatellites in species for which no genetic information is available represents an important technical challenge to overcome order enable mainstream application state-of-the-art population analysis techniques nonmodel organisms. Using example Acacia harpophylla, acacia tree endemic north-eastern Australia, we show that high-throughput shotgun pyrosequencing technology, so-called second-generation sequencing, reduces time cost microsatellite...
Abstract Four British bumblebee species ( Bombus terrestris , hortorum ruderatus and subterraneus ) became established in New Zealand following their introduction at the turn of last century. Of these, two remain common United Kingdom B. ), whilst have undergone marked declines, latter being declared extinct 2000. The presence these bumblebees provides an unique system which four related been isolated from source population for over 100 years, providing a rare opportunity to examine impacts...
A combined genetic and morphometric approach was used to study leaf shape size variability among three sympatric interfertile white oak species (Quercus frainetto, Quercus petraea, pubescens) sampled in a mixed forest central Italy. Leaf were analyzed separately discriminate species, identify unique traits, analyze the relationships between hybrid phenotypes their parental species. In addition, covariation of (i.e., allometry) tested at intraspecific level, differences allometric...
Abstract Alternative mating tactics have important ecological and evolutionary implications are determined by complex interactions between environmental genetic factors. Here, we study the effect architecture of variability in reproductive among Atlantic salmon males which can either mature sexually early life freshwater or more commonly only after completing a migration at sea. We applied latent threshold model (LETM), provides conceptual framework linking individual status to controlling...
In the Mediterranean basin, a large number of olive varieties are present. This poses series problems concerning germplasm characterization and management. addition, there is problem arising from existence homonyms synonyms. makes cultivar identification very difficult complex. Microsatellites or simple sequence repeat (SSR) locus-specific codominant markers showing high degree polymorphism multiple alleles per locus. Their informativeness them choice in genetic diversity studies. work...