Studies over the past 20 years on natural populations indicated that sympatric speciation may be far more common and widespread among plants and animals than previously thought. By using molecular phylogenetics (on a combined data set of two genes), the relationships between Caryedon serratus native forms and forms feeding on groundnut was investig...
Published in Pest management science
This is the first report of strobilurin resistance in Microdochium. Several resistance mechanisms have evolved independently in populations and may have different impacts on field efficacy. This makes the accurate detection and quantification of QoI resistance difficult. The management of field resistance and efficacy must be adapted to take these ...
1. Molecular identification of animal or plant species in fresh and degraded products (e.g. food, faeces, hair and other organic remains) has become a very important issue in both conservation biology and food science. 2. In this proof-of-concept study, we developed a microarray-based method using cytochrome b-derived probes to identify the main co...
The cyst nematode Globodera pallida is a major pest of potato in South America where this specialist parasite is native. To investigate its phylogeography, we have genotyped individuals from 42 Peruvian populations using mitochondrial and nuclear molecular markers. A clear south-to-north phylogeographical pattern was revealed with five well-support...
La lutte contre le mildiou de la vigne à l’aide des fongicides QoIs a rapidement conduit à des pertes d’efficacité dans les vignobles mondiaux. Grâce au séquençage complet du gène codant pour le cytochrome b (cible des QoIs) et de marqueurs neutres (microsatellites), la présence d’une mutation ponctuelle ou SNP (G143A) dans le gène du Cyt b a été d...
