Does sex-biased dispersal account for the lack of geographic and host-associated differentiation in introduced populations of an aphid parasitoid? - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Ecology and Evolution Année : 2015

Does sex-biased dispersal account for the lack of geographic and host-associated differentiation in introduced populations of an aphid parasitoid?

Résumé

Host recognition and use in female parasitoids strongly relies on host fidelity, a plastic behavior which can significantly restrict the host preferences of parasitoids, thus reducing the gene flow between parasitoid populations attacking different insect hosts. However, the effect of migrant males on the genetic differentiation of populations has been frequently ignored in parasitoids, despite its known impact on gene flow between populations. Hence, we studied the extent of gene flow mediated by female and male parasitoids by assessing sibship relationships among parasitoids within and between populations, and its impact on geographic and host-associated differentiation in the aphid parasitoid Aphidius ervi. We report evidences of a high gene flow among parasitoid populations on different aphid hosts and geographic locations. The high gene flow among parasitoid populations was found to be largely male mediated, suggested by significant differences in the distribution of full-sib and paternal half-sib dyads of parasitoid populations.
Fichier principal
Vignette du fichier
2015_Zepeda-Paulo_Ecology_and_Evolution_1.pdf (2.75 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01254188 , version 1 (28-05-2020)

Licence

Paternité

Identifiants

Citer

Francisca Zepeda-Paulo, Blas Lavandero, Frédérique Maheo, Emilie Dion, Yannick Outreman, et al.. Does sex-biased dispersal account for the lack of geographic and host-associated differentiation in introduced populations of an aphid parasitoid?. Ecology and Evolution, 2015, 5 (11), pp.2149-2161. ⟨10.1002/ece3.1504⟩. ⟨hal-01254188⟩
172 Consultations
17 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More