Species and endosymbiont diversity of Bemisia tabaci (Homoptera: Aleyrodidae) on vegetable crops in Senegal

Delatte Hélène, Baudin Rémy, Becker Nathalie, Girard Anne-Laure, Ramatoulaye Sidebe Traoré, Lett Jean-Michel, Reynaud Bernard. 2015. Species and endosymbiont diversity of Bemisia tabaci (Homoptera: Aleyrodidae) on vegetable crops in Senegal. Insect Science, 22 (3) : 386-398.

https://doi.org/10.1111/1744-7917.12134

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Url - jeu de données - Entrepôt autre : http://www.ncbi.nlm.nih.gov/nuccore/JN119573

Quartile : Q1, Sujet : ENTOMOLOGY

Note générale : Jeux de données enregistrés sur la base GenBank sous les numéros d'accès présents dans la table 1 du document.

Résumé : Bemisia tabaci-transmitted geminiviruses are one of the major threats on cassava and vegetable crops in Africa. However, to date, few studies are available on the diversity of B. tabaci and their associated endosymbionts in Africa. More than 28 species have been described in the complex of B. tabaci cryptic species; among them, 2 are invasive pests worldwide: MED and MEAM1. In order to assess the species diversity of B. tabaci in vegetable crops in Senegal, several samplings in different localities, hosts and seasons were collected and analyzed with nuclear (microsatellite) and mitochondrial (COI) markers. The bacterial endosymbiont community was also studied for each sample. Two species were detected: MED Q1 and MEAM1 B. Patterns of MED Q1 (dominance on most of the samples and sites, highest nuclear and mitochondrial diversity and broader secondary endosymbiont community: Hamiltonella, Cardinium, Wolbachia and Rickettsia), point toward a predominant resident begomovirus vector group for MED Q1 on market gardening crops. Furthermore, the lower prevalence of the second species MEAM1 B, its lower nuclear and mitochondrial diversity and a narrower secondary endosymbiont community (Hamiltonella/Rickettsia), indicate that this genetic group is exotic and results from a recent invasion in this area.

Mots-clés Agrovoc : Bemisia tabaci, vecteur de maladie, Geminiviridae, symbiote, phylogénie, microsatellite, marqueur génétique, interactions biologiques, symbiose, plante de culture, plante hôte, génotype