Weak spatial and temporal population genetic structure in the rosy apple aphid, Dysaphis plantaginea, in french apple orchards - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue PLoS ONE Année : 2011

Weak spatial and temporal population genetic structure in the rosy apple aphid, Dysaphis plantaginea, in french apple orchards

Résumé

We used eight microsatellite loci and a set of 20 aphid samples to investigate the spatial and temporal genetic structure of rosy apple aphid populations from 13 apple orchards situated in four different regions in France. Genetic variability was very similar between orchard populations and between winged populations collected before sexual reproduction in the fall and populations collected from colonies in the spring. A very small proportion of individuals (similar to 2%) had identical multilocus genotypes. Genetic differentiation between orchards was low (F(ST)<0.026), with significant differentiation observed only between orchards from different regions, but no isolation by distance was detected. These results are consistent with high levels of genetic mixing in holocyclic Dysaphis plantaginae populations (host alternation through migration and sexual reproduction). These findings concerning the adaptation of the rosy apple aphid have potential consequences for pest management.
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hal-02642609 , version 1 (28-05-2020)

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Thomas Guillemaud, Aurelie Blin, Sylvaine S. Simon, Karine Morel, Pierre Franck. Weak spatial and temporal population genetic structure in the rosy apple aphid, Dysaphis plantaginea, in french apple orchards. PLoS ONE, 2011, 6 (6), ⟨10.1371/journal.pone.0021263⟩. ⟨hal-02642609⟩
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