A5079579349- Vector-Borne Animal Diseases
- Animal Disease Management and Epidemiology
- Agriculture and Farm Safety
- Viral Infections and Vectors
- Mosquito-borne diseases and control
- Bioenergy crop production and management
- Genetic Mapping and Diversity in Plants and Animals
- Banana Cultivation and Research
- Trypanosoma species research and implications
- Vector-borne infectious diseases
- Forensic Entomology and Diptera Studies
- Parasitic Diseases Research and Treatment
- Insect Resistance and Genetics
- Insect symbiosis and bacterial influences
- Legume Nitrogen Fixing Symbiosis
- Insect and Pesticide Research
- Plant Virus Research Studies
- Parasites and Host Interactions
- Yersinia bacterium, plague, ectoparasites research
- Environmental DNA in Biodiversity Studies
- Genetics and Plant Breeding
- Plant and Fungal Interactions Research
- Bacteriophages and microbial interactions
- Genetic diversity and population structure
- Virology and Viral Diseases
Animal, Santé, Territoires, Risques et Ecosystèmes
2014-2023
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2012-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2023
Université de Montpellier
2018-2020
Institut Agro Montpellier
2013-2016
Agropolis International
2010-2013
Institut National de la Recherche Agronomique
2013
Genetic Improvement and Adaptation of Mediterranean and Tropical Plants
2012-2013
Centre de Recherche et de Veille sur les Maladies Emergentes dans l’Océan Indien
2011-2012
Institut de Recherche pour le Développement
2009-2010
Large ex situ collections require approaches for sampling manageable amounts of germplasm in-depth characterization and use. We present here a large diversity survey in sorghum with 3367 accessions 41 reference nuclear SSR markers. Of 19 alleles on average per locus, the largest numbers were concentrated central eastern Africa. Cultivated appeared structured according to geographic regions race within region. A total 13 groups variable size distinguished. The peripheral western Africa,...
The emergence and massive spread of bluetongue in Western Europe during 2006-2008 had disastrous consequences for sheep cattle production confirmed the ability Palaearctic Culicoides (Diptera: Ceratopogonidae) to transmit virus. Some aspects ecology, especially host-seeking feeding behaviors, remain insufficiently described due difficulty collecting them directly on a bait animal, most reliable method evaluate biting rates.Our aim was compare typical animal-baited traps (drop trap direct...
Population structure, extent of linkage disequilibrium (LD) as well signatures selection were investigated in sorghum using a core sample representative worldwide diversity. A total 177 accessions genotyped with 1122 informative physically anchored DArT markers. The properties DArTs to describe genetic structure compared those SSRs and previously published RFLP Model-based (STRUCTURE software) Neighbor-Joining diversity analyses led the identification 6 groups confirmed previous evolutionary...
The genus Musa is a large species complex which includes cultivars at diploid and triploid levels. These sterile vegetatively propagated are based on the A genome from acuminata, exclusively for sweet bananas such as Cavendish, or associated with B (Musa balbisiana) in cooking Plantain varieties. In M. acuminata cultivars, structural heterozygosity thought to be one of main causes sterility, essential obtaining seedless fruits but hampers breeding. Only partial genetic maps presently...
The production of triploid banana and plantain (Musa spp.) cultivars with improved characteristics (e.g. greater disease resistance or higher yield), while still preserving the main features current popular taste cooking quality), remains a major challenge for Musa breeders. In this regard, breeders require sound knowledge lineage sterile cultivars, to select diploid parents that are able transmit desirable traits, together breeding strategy ensuring final triploidization sterility. Highly...
Background The Government of Senegal has initiated the "Projet de lutte contre les glossines dans Niayes" to remove trypanosomosis problem from this area in a sustainable way. Due past failures sustainably eradicate Glossina palpalis gambiensis Niayes area, controversies remain as best strategy implement, i.e. "eradication" versus "suppression." To inform debate, we used population genetics measure genetic differentiation between G. and those southern tsetse belt (Missira)....
Feeding success depends on host availability, defensive reactions and preferences. Host choice is a critical determinant of the intensity at which pathogens are transmitted. The aim current study was to describe preferences Palaearctic Culicoides species (Diptera: Ceratopogonidae) Latreille using traps baited with five different poultry, horse, cattle, sheep goat. Collections were carried out nightly in July August 2009 western France three replicates 5 × randomized Latin square (five sites,...
Background We undertook a population genetics analysis of the tsetse fly Glossina palpalis gambiensis, major vector sleeping sickness in West Africa, using microsatellite and mitochondrial DNA markers. Our aims were to estimate effective size degree isolation between coastal sites on mainland Guinea Loos Islands. The sampling locations encompassed Dubréka, area with highest Human African Trypanosomosis (HAT) prevalence mangrove savannah mainland, two islands, Fotoba Kassa, within...
Feeding success of free-living hematophagous insects depends on their ability to be active when hosts are available and reach places where accessible. When the insect is a vector pathogens, determining components host-seeking behavior primary interest for assessment transmission risk. Our aim was describe endo/exophagy circadian activity Palaearctic Culicoides species, which major biting pests arbovirus vectors, using drop traps suction baited with four sheep, as bluetongue virus hosts....
The Schultzei group of Culicoides Latreille (Diptera: Ceratopogonidae) is distributed throughout Africa to northern Asia and Australasia includes several potential vector species livestock pathogens. taxonomy the belonging this confounded by wide geographical distribution morphological variation exhibited many species. In work, molecular approaches were combined assess taxonomic validity variants found in Senegal comparing their genetic diversity with that specimens from other regions. list...
Understanding the demographic history and genetic make-up of colonizing species is critical for inferring population sources colonization routes. This main interest designing accurate control measures in areas newly colonized by vector economically important pathogens. The biting midge Culicoides imicola a major orbiviruses to livestock. Historically, distribution this was limited Afrotropical region. Entomological surveys first revealed presence C. south Mediterranean basin 1970s. Following...
Abstract Background In the last two decades, recurrent epizootics of bluetongue virus and Schmallenberg have been reported in western Palearctic region. These viruses affect domestic cattle, sheep, goats wild ruminants are transmitted by native hematophagous midges genus Culicoides (Diptera: Ceratopogonidae). dispersal is known to be stratified, i.e. due a combination processes occurring actively at short distances passively or semi-actively long distances, allowing individuals jump hundreds...
Sleeping sickness, transmitted by G. p. palpalis, is known to be present in the Ivory Coast. palpalis has recently been reported occur several places within town of Abidjan, including: (i) Banco forest, (ii) Abobo Adjamé University campus and (iii) zoological park. Could these three treated sequentially, as separate tsetse populations, or should they taken one area comprising a single, panmictic population?The amount gene flow between provides strategic information for vector control. It was...
The identification of blood meal source arthropod vector species contributes to the understanding host-vector-pathogen interactions. aim current work was identify in Culicoides biting midge species, biological vectors internationally important arboviruses livestock and equids, using a new ecological approach. We examined correlation between identified engorged females collected suction light trap available vertebrate hosts along four rings (200, 500, 1000 2000 m) centered at site described...
Following the emergence of Schmallenberg virus (SBV) in 2011 Germany and its rapid spread Europe, Culicoides (Diptera: Ceratopogonidae) collected through French surveillance network were analysed order to record presence genome into species diversity collected, assess minimum infectious rates (MIR) circulation dynamics populations. Two vector activity periods selected (2011, August October, 53 sites 2012, June 35 sites) corresponding 704 night collections. A total 29,285 individual midges...
Abstract. The A sian tiger mosquito S tegomyia albopicta (= edes albopictus ) ( D iptera: C ulicidae), native to forests, is a nuisance and responsible for the transmission of arboviruses public health importance, such as dengue, chikungunya Z ika viruses. It has colonized parts all continents, except ntarctica, over past 30–40 years. However, date, only records . in N orth frica refer occasional collections 2010 2014 lgeria. In early eptember 2015, larvae adults were collected district R...
Biting midge species of the genus Culicoides Latreille (Diptera: Ceratopogonidae) comprise more than 1300 distributed worldwide. Several are vectors various viruses that can affect animals, like African horse sickness virus (AHSV), known to be endemic in sub-Saharan Africa. The ecological and veterinary interest emphasizes need for rapid reliable identification vector species. However, morphology-based has limitations warrants integration molecular data. DNA barcoding based on mitochondrial...
Abstract Background Culicoides obsoletus is an abundant and widely distributed Holarctic biting midge species, involved in the transmission of bluetongue virus (BTV) Schmallenberg (SBV) to wild domestic ruminants. Females this vector species are often reported jointly with two morphologically very close C. scoticus montanus , forming Obsoletus/Scoticus Complex. Recently, cryptic diversity within was geographically distant sites. Clear delineation characterization genetic variability...
Biting midges of the genus Culicoides (Diptera: Ceratopogonidae) are biological vectors internationally important arboviruses. To understand role in transmission these viruses, it is essential to correctly identify species involved. Within western Palaearctic region, main suspected vector species, C. obsoletus, scoticus, dewulfi and chiopterus, have similar wing patterns, which makes difficult separate them correctly. In this study, designed as an inter-laboratory ring trial with twelve...
African horse sickness (AHS) is a vectorborne disease spread by Culicoides biting midges. The UK's Department for Environment, Food and Rural Affairs currently suggests using topical deltamethrin AHS control; however, no data are available regarding its efficacy in the horse. aims of this study were to investigate effect on blood feeding horses which species fed horses. Three pairs placed partially enclosed cages that allowed samples representing interacting with individual be sampled. Four...
Abstract Background Investigations of Culicoides fauna, including inventories, were carried out in Morocco at different periods after the country had faced major bluetongue and African horse sickness outbreaks. However, no comprehensive reference publication has provided a clear overview species diversity. This study reviewed available data on biting midge from 1968 to 2015 (published grey literature French English) order revise current checklist, light state art taxonomic systematic...
There are concerns that outbreaks of exotic or novel vector-borne viral diseases will increasingly occur within northern Europe and the UK in future. African horse sickness (AHS) is a disease equids transmitted by Culicoides associated with up to 95 per cent mortality. AHS has never occurred UK; however, it been suggested appropriate species climatic conditions present support an outbreak. No data currently available regarding on equine properties. This study demonstrates presence potential...