By the same authors

From the same journal

From the same journal

Resistance to a fungal pathogen and host plant specialization in the pea aphid

Research output: Contribution to journalArticle



Publication details

JournalEcology Letters
DatePublished - Feb 2003
Issue number2
Number of pages8
Pages (from-to)111-118
Original languageEnglish


Herbivores that show host race formation on different plant species have proven to be valuable model systems for studying the evolution of specialization and speciation. Here, we use the pea aphid, Acyrthosiphon pisum , to investigate a possible link between specialization on two host plant species, Lotus uliginosus and Trifolium pratense , and resistance to a natural enemy, the fungal pathogen Erynia neoaphidis . Pea aphids collected on either plant species in the field showed in most cases poor survival on the alternate host plant. Furthermore, pea aphids specialized on T. pratense were very resistant to E. neoaphidis , whereas aphids specialized on L. uliginosus were susceptible. This susceptibility was not influenced by the actual food plant on which the assays were conducted. We discuss how selection from natural enemies may influence the process of specialization and race formation, and how specialization can affect the evolution of resistance.

    Research areas

  • Acyrthosiphon pisum, entomopathogen, enemy-free space, Erynia (= Pandora ) neoaphidis, evolution of resistance, evolution of specialization, pea aphid, tritrophic interaction, ENEMY-FREE SPACE, ACYRTHOSIPHON-PISUM, ERYNIA-NEOAPHIDIS, REPRODUCTIVE ISOLATION, RHAGOLETIS-POMONELLA, ARTHROPODS, SELECTION, RACES, PARASITOIDS, PERFORMANCE

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations