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Spread of resistance genes in aphid populations—a simulation study
Author(s) -
Schönfisch B.,
Tomiuk J.,
Wöhrmann K.
Publication year - 1997
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.1997.tb01396.x
Subject(s) - biology , aphid , host (biology) , gene , locus (genetics) , allele , resistance (ecology) , genetics , selection (genetic algorithm) , genotype , host resistance , ecology , botany , artificial intelligence , computer science , immunology
The model considers the spread of resistance genes in aphid populations. Two modes of aphid life cycles, a holocyclic and an anholocyclic, are simulated. Aphids are assumed to migrate from their primary host plants to two secondary host plants and vice versa causing several bottlenecks. The model studied is an one locus‐two allele model: first, it is assumed that negative selection acts against one homozygous genotype parasiting on the primary as well as secondary host. Secondly, the genotypes are assumed to be differently selected on the two secondary host plants while no selection takes place on the primary host. The model predicts a rapid spread of resistance genes in populations under conditions met in agricultural areas.