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Host-adapted aphid populations differ in their migratory patterns and capacity to colonize crops [Journal of Applied Ecology]

Keywords : agricultural ecology, biotypes, host adaptation, host races, migration, pea aphid Acyrthosiphon pisum, pea Pisum sativum, population genetics, regional movement

par Frédéric Magné - publié le

1. Although phytophagous insects can vary genetically in host use and exhibit long-range movements, the combined implications of these phenomena for pest management have received limited attention.
2. To address this, we surveyed the genetic diversity of pea aphid Acyrthosiphon pisum using twelve microsatellite loci and assessed host association patterns and annual movement from a putative source region (Columbia River Basin) to the Palouse region of northern Idaho and western Washington, where the aphid is a pest of pea Pisum sativum.(...)

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