Differences in defensive behaviour between host-adapted races of the pea aphid
| Autor: | Grit Kunert, Yannick Outreman, Wolfgang W. Weisser, Jean-Christophe Simon, Elodie Belz |
|---|---|
| Přispěvatelé: | Biologie des organismes et des populations appliquées à la protection des plantes (BIO3P), Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST |
| Rok vydání: | 2010 |
| Předmět: |
alarm pheromone
0106 biological sciences foraging predators Vicia reproductive isolation sympatric speciation Biology 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Race (biology) Sativum host races Botany Medicago [SDV.BV]Life Sciences [q-bio]/Vegetal Biology apple maggot fly Medicago sativa (e)-beta-farnesene 030304 developmental biology rhagoletis-pomonella 0303 health sciences Aphid Ecology Host (biology) Acyrthosiphon pisum defensive responses food and beverages escape behavior biochemical phenomena metabolism and nutrition biology.organism_classification phytophagous insects Vicia faba aphids ecological specialization Insect Science ecological specialisation Trifolium genetic differentiation acyrthosiphon-pisum harris |
| Zdroj: | Ecological Entomology Ecological Entomology, Wiley, 2010, 35, pp.147-154. ⟨10.1111/j.1365-2311.2009.01146.x⟩ Ecological Entomology, Wiley, 2010, 35 (s1), pp.147-154. ⟨10.1111/j.1365-2311.2009.01146.x⟩ Ecological Entomology, 2010, 35 (s1), pp.147-154. ⟨10.1111/j.1365-2311.2009.01146.x⟩ |
| ISSN: | 1365-2311 0307-6946 |
| DOI: | 10.1111/j.1365-2311.2009.01146.x |
| Popis: | 1. Host races, i.e. host-adapted populations in partial reproductive isolation, have been reported in a growing number of insect herbivores including aphids. The pea aphid Acyrthosiphon pisum encompasses distinct races highly specialised on various Fabaceae plants. Races have been well documented at both the ecological and genetic level. However, little is known about possible behavioural differences between host races other than those involved in plant choice. 2. The aim of this study was to determine whether pea aphid host races differ in the behavioural response to the aphid alarm pheromone that was used to simulate immediate predation risk. The behaviour of aphids towards a synthetic alarm pheromone applied in their vicinity was measured in several pea aphid clones originating from various legumes including Medicago sativa, Pisum sativum, Trifolium pratense, and Vicia faba. To control for the influence of plant traits, experiments were conducted on the preferred host plant and on the universal host plant Vicia faba. 3. Host races differed in their defensive responses, with stronger behavioural responses in host races originating from M. sativa and T. pratense compared with those coming from P. sativum and V. faba. These differences in behaviour are inherent to the pea aphid host race but not dependent on the test plant. 4. Our work shows that host-plant specialisation may involve behavioural traits in addition to host choice. Possible mechanisms of how different defensive behaviours might have evolved are discussed. |
| Databáze: | OpenAIRE |
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