Within-species variability of the response to 20-hydroxyecdysone in peach-potato aphid (Myzus persicae Sulzer)
| Autor: | Thomas Guillemaud, Laurent Lapchin, Salah Alla, Valérie Marquet, Thibaut Malausa, Frédéric Marion-Poll, Michèle Salles |
|---|---|
| Přispěvatelé: | Réponse des Organismes aux Stress Environnementaux (ROSE), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA), Physiologie de l'Insecte : Signalisation et Communication (PISC), Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National Agronomique Paris-Grignon (INA P-G), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS) |
| Rok vydání: | 2005 |
| Předmět: |
0106 biological sciences
GENETIC VARIABILITY Genotype Physiology PEST SPECIES MANAGEMENT [SDV]Life Sciences [q-bio] 20-Hydroxyecdysone 01 natural sciences Crop 03 medical and health sciences chemistry.chemical_compound Botany Animals Genetic variability Nymph 030304 developmental biology 0303 health sciences Aphid biology Resistance (ecology) Genetic Variation Feeding Behavior biology.organism_classification 010602 entomology Horticulture Ecdysterone Fertility chemistry Insect Science HYDROXYECDYSONE Aphids PEACH POTATO APHID MYZUS PERSICAE SULZER Female PEST analysis Prunus Myzus persicae RESISTANCE |
| Zdroj: | Journal of Insect Physiology Journal of Insect Physiology, Elsevier, 2006, 52 (5), pp.480-486. ⟨10.1016/j.jinsphys.2006.01.007⟩ Journal of Insect Physiology, 2006, 52 (5), pp.480-486. ⟨10.1016/j.jinsphys.2006.01.007⟩ |
| ISSN: | 0022-1910 |
| DOI: | 10.1016/j.jinsphys.2006.01.007⟩ |
| Popis: | International audience; Phytoecdysteroids have been proposed as new tools for controlling crop pests because of their endocrine disruption and deterrent effects on insects and nematodes. There is increasing evidence of variability between taxa in sensitivity to phytoecdysteroids, but the genetic variability of this sensitivity within species is unknown. However, knowledge about this intraspecies variability is required for predicting evolution of the pest's response to new control methods. We assessed the variability of the response of the aphid Myzus persicae Sulzer, a major agricultural pest, to 20-hydroxyecdysone (20E). We determined the number of nymphs produced by six clones of M. persicae exposed to various concentrations of 20E and the capacity of these clones to detect 20E in choice experiments. High concentrations of 20E significantly decreased the number of nymphs produced for two clones and both increases and decreases in the number of offspring were detected at low concentrations. Two clones significantly avoided food with 20E, while one significantly preferred it, suggesting that 20E does not always act as a deterrent in this species. We conclude that genetic variability in the response to 20E exists in natural populations of M. persicae. The consequences of this finding on the sustainability of control methods using 20E are discussed. (c) 2006 Elsevier Ltd. All rights reserved |
| Databáze: | OpenAIRE |
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