A5007009086- Plant and animal studies
- Insect-Plant Interactions and Control
- Lepidoptera: Biology and Taxonomy
- Insect symbiosis and bacterial influences
- Insect Resistance and Genetics
- Ecology and Vegetation Dynamics Studies
- Hymenoptera taxonomy and phylogeny
- Plant Diversity and Evolution
- Genetic diversity and population structure
- Insect and Arachnid Ecology and Behavior
- Plant and Fungal Species Descriptions
- Cocoa and Sweet Potato Agronomy
- Species Distribution and Climate Change
- Forest Insect Ecology and Management
- Entomopathogenic Microorganisms in Pest Control
- Coleoptera Taxonomy and Distribution
- Fossil Insects in Amber
- Genomics and Phylogenetic Studies
- Evolution and Genetic Dynamics
- Coleoptera: Cerambycidae studies
- Biological Control of Invasive Species
- CRISPR and Genetic Engineering
- Scarabaeidae Beetle Taxonomy and Biogeography
- Environmental DNA in Biodiversity Studies
- Evolution and Paleontology Studies
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2015-2025
Institut Agro Montpellier
2015-2025
Université de Montpellier
2018-2025
Institut de Recherche pour le Développement
2015-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2025
L'Institut Agro
2020-2025
Centre de Biologie et de Gestion des Populations
2012-2024
Agropolis International
2015-2024
University of Alberta
2017-2019
The moth Spodoptera frugiperda is a well-known pest of crops throughout the Americas, which consists two strains adapted to different host-plants: first feeds preferentially on corn, cotton and sorghum whereas second more associated with rice several pasture grasses. Though morphologically indistinguishable, they exhibit differences in their mating behavior, pheromone compositions, show development variability according host-plant. latter suggest that both are species, this issue still...
Abstract Many insects depend on obligate mutualistic bacteria to provide essential nutrients lacking from their diet. Most aphids, whose diet consists of phloem, rely the bacterial endosymbiont Buchnera aphidicola supply amino acids and B vitamins. However, in some aphid species, provision these is partitioned between a younger partner, identity varies across lineages. Little known about origin evolutionary stability di-symbiotic systems. It also unclear whether novel symbionts merely...
Abstract Evolutionary relationships have remained unresolved in many well-studied groups, even though advances next-generation sequencing and analysis, using approaches such as transcriptomics, anchored hybrid enrichment, or ultraconserved elements, brought systematics to the brink of whole genome phylogenomics. Recently, it has become possible sequence entire genomes numerous nonbiological models parallel at reasonable cost, particularly with shotgun sequencing. Here, we identify...
Abstract The mega-diversity of herbivorous insects is attributed to their co-evolutionary associations with plants. Despite abundant studies on insect-plant interactions, we do not know whether host-plant shifts have impacted both genomic adaptation and species diversification over geological times. We show that the antagonistic interaction between swallowtail butterflies highly toxic birthworts began 55 million years ago in Beringia, followed by several major ancient shifts. This...
Abstract Insect diversity represents about 60% of the estimated million‐and‐a‐half described eukaryotic species worldwide, yet comprehensive and well‐resolved intra‐ordinal phylogenies are still lacking for majority insect groups. This is case especially most species‐rich group, beetles ( C oleoptera), a group which less than 4% known have had their DNA sequenced. In this study, we reconstruct first higher level phylogeny based on sequence data darkling beetles, family comprising at least 20...
Nowadays molecular species delimitation methods promote the identification of boundaries within complex taxonomic groups by adopting innovative concepts and theories (e.g. branching patterns, coalescence). As some them can efficiently deal with large single-locus datasets, they could speed up process discovery compared to more time consuming methods, benefit from existence public datasets; these also particularly favour scientific research actions dealing threatened or economically important...
Aphids are a large family of phloem-sap feeders. They typically rely on single bacterial endosymbiont, Buchnera aphidicola, to supply them with essential nutrients lacking in their diet. This association was described model aphid species from the Aphidinae subfamily and has been assumed be representative most aphids. However, two lineages, lost some symbiotic functions is now complemented by additional symbionts. Though these cases break our view aphids harbouring obligate we know little...
Abstract One hundred and fifty years after Alfred Wallace studied the geographical variation species diversity of butterflies in Indomalayan-Australasian Archipelago, processes responsible for their biogeographical pattern remain equivocal. We analysed macroevolutionary mechanisms accounting temporal diversification charismatic birdwing (Papilionidae), a major focus Wallace’s pioneering work. Bayesian phylogenetics dating analyses birdwings were conducted using mitochondrial nuclear genes....
Abstract Swallowtail butterflies (Lepidoptera: Papilionidae) have been instrumental in understanding many foundational concepts biology; despite this, a resolved and robust phylogeny of the group has major impediment to elucidating patterns processes their ecological evolutionary history. This study presents mitogenomic, time‐calibrated for all swallowtail genera. A shotgun sequencing approach was performed obtain 32 complete mitogenomes that were added available butterfly mitogenomes,...
Abstract The fall armyworm (FAW; S podoptera frugiperda ) is one of the major agricultural pest insects. FAW native to Americas, and its invasion was first reported in West Africa 2016. Then it quickly spread through Africa, Asia, Oceania, becoming main threats corn production. We analyzed whole genome sequences 177 individuals from 12 locations on four continents infer evolutionary processes invasion. Principal component analysis TPI gene shows that invasive populations originated strain....
In a context of unprecedented insect decline, it is critical to have reliable monitoring tools measure species diversity and their dynamic at large‐scales. High‐throughput DNA‐based identification methods, particularly metabarcoding, were proposed as an effective way reach this aim. However, these methods are subject multiple technical limitations, resulting in unavoidable false‐positive false‐negative detection. Moreover, metabarcoding does not allow estimation abundance given sample, which...
The cotton leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae), is a major agricultural pest affecting crops like cotton, maize, tomatoes, and wheat across southern Europe, Africa, the Middle East, western Asia. Whole genome analyses have revealed adaptive evolution in chemosensation detoxification genes S. littoralis. However, extent of intraspecific diversity influenced by recent evolutionary forces remains unclear. In this study, we conducted population genomics analysis using 31...
The rise of Neogene C4 grasslands is one the most drastic changes recently experienced by biosphere. A central - and widely debated hypothesis posits that acted as a major adaptive zone for herbivore lineages. We test this with novel model system, Sesamiina stemborer moths their associated host-grasses. Using comparative phylogenetic framework integrating paleoenvironmental proxies we recover negative correlation between evolutionary trajectories insects plants. Our results show generated...
Species in the stem borer noctuid subtribe Sesamiina are notoriously difficult to distinguish because most related species have homogeneous wing patterns and almost indistinguishable genitalia. The latter is potentially problematic this group includes several important pest that usually baregly distinguishable from non-pest species. In study we focus on Mediterranean corn stalk Sesamia nonagrioides (Lefèbvre), an of maize with a wide area distribution covers Africa extends south Europe...
Genome reduction is pervasive among maternally inherited bacterial endosymbionts. This genome can eventually lead to serious deterioration of essential metabolic pathways, thus rendering an obligate endosymbiont unable provide nutrients its host. loss pathways either symbiont complementation (sharing the nutrient production with a novel co-obligate symbiont) or replacement (complete takeover by symbiont). However, process which these two evolutionary events happen remains somewhat enigmatic...
Abstract Aim The aim was to determine processes driving the latitudinal diversity gradient (LDG) in New World swallowtail butterfly diversity. We tested three mechanisms commonly invoked explain LDG: ecological opportunity, evolutionary rates and biogeographical history. Location Eurasia. Time period Oligocene–Present. Major taxa studied clade ( Papilio : Agehana , Alexanoria Chilasa Heraclides Pterourus ). Methods integrated data from most complete current phylogeny of this with...
Abstract Aim The Mediterranean Basin ( MB ) is a species‐rich biogeographical region with many endemic taxa. We analysed the historical patterns of temporal and geographical diversification B laps T enebrionidae), diverse group flightless beetles, estimated their date origin colonization , tracked changes in rates. Location M editerranean asin. Methods reconstructed phylogenetic relationships Blaps using four mitochondrial genes 47 morphological characters. Divergence‐time estimates were...
Abstract Aphids (Aphididae) are intensively studied due to their significance as pests and captivating biological traits. Despite this interest, the evolutionary history of insect family is poorly understood. Recent phylogenomic analyses have produced conflicting topologies, complicating our understanding aphid trait evolution. In work, we aimed unravel backbone phylogeny aphids. We sequenced partial whole mitochondrial genomes from 87 species. additionally 42 nuclear loci across 95 species...
Piffaretti, J., Vanlerberghe‐Masutti, F., Tayeh, A., Clamens, A.‐L., Cœur d’Acier, A. & Jousselin E. (2012). Molecular phylogeny reveals the existence of two sibling species in aphid pest Brachycaudus helichrysi (Hemiptera: Aphididae). — Zoologica Scripta , 41 266–280. is a worldwide polyphagous that seriously damages its primary hosts ( Prunus spp.) and various cultivated plants among secondary (e.g. sunflower). A recent study genus suggested this might encompass differentiated...
Abstract This article documents the addition of 473 microsatellite marker loci and 71 pairs single‐nucleotide polymorphism (SNP) sequencing primers to Molecular Ecology Resources Database. Loci were developed for following species: Barteria fistulosa, Bombus morio, Galaxias platei, Hematodinium perezi, Macrocentrus cingulum Brischke (a.k.a. M. abdominalis Fab., grandii Goidanich or gifuensis Ashmead) , Micropogonias furnieri, Nerita melanotragus, Nilaparvata lugens Stål Sciaenops ocellatus,...
Abstract Palparine and palparidiine antlions constitute an emblematic clade of large occasionally colourful insects that are only distributed in the western portion Eastern hemisphere, with about half known species diversity occurring exclusively Southern Africa. Little is their evolutionary history, boundaries relationships most genera still unresolved. In this study, we analyse a molecular dataset consisting seven loci (five mitochondrial two nuclear genes) for 144 antlion provide first...
With about 250 species, the genus Blaps Fabricius, 1775 is one of most diverse genera darkling beetles (Coleoptera: Tenebrionidae: Tenebrioninae: Blaptini: Blaptina). In this study, we provide new insights on evolutionary relationships species using a combined molecular and morphological dataset encompassing 69 distinct subspecies (105 specimens in total, all belonging to subgenus Blaps), four other representatives tribe Blaptini (from subtribes Gnaptorina, Gnaptorinina Prosodina) 12...