Nagoshi Rodney N., Silvie Pierre, Meagher Robert L.. 2007. Comparison of haplotype frequencies differentiate fall armyworm (Lepidoptera: Noctuidae) corn-strain populations from Florida and Brazil. Journal of Economic Entomology, 100 (3) : 954-961.
Version publiée
- Anglais
Accès réservé aux personnels Cirad Utilisation soumise à autorisation de l'auteur ou du Cirad. 539579.pdf Télécharger (324kB) | Demander une copie |
Résumé : Fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is a major economic pest throughout the Western Hemisphere. Populations can be subdivided into two morphologically identical but genetically distinct strains (corn-strain and rice-strain) that differ in their host plant preferences. These strains can be distinguished by using polymorphisms in the mitochondria] cytoclvrome oxidase I gene. Additional sequence analysis of this locus identified two sites that were highly polymorphic in the corn-strain population and that produced four different haplotype subgroups. Comparisons of the frequency distribution of these haplotypes found no seasonal or plant host specificities, but they did demonstrate that the Brazil corn-strain population is different from corn-strain fall armyworm found in Florida. The development of a rapid means of distinguishing fall armyworm populations originating from Brazil versus Florida provides an opportunity for investigating and comparing the genetic complexity and long-range movements of this important agricultural pest.
Classification Agris : H10 - Ravageurs des plantes
Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique
Auteurs et affiliations
- Nagoshi Rodney N., USDA (USA)
- Silvie Pierre, CIRAD-PERSYST-UPR Systèmes cotonniers (BRA) ORCID: 0000-0002-3406-6230
- Meagher Robert L., USDA (USA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/539579/)
[ Page générée et mise en cache le 2024-12-20 ]