ArticleNeotropical entomology2026
Wolbachia in Tephritid Populations from Argentina: New Hosts and First Report of Multiple Infections in Rhagoletotrypeta pastranai.
Article in Neotropical entomology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The Tephritidae family comprises agriculturally important insect pests that cause significant economic losses worldwide. Interest in eco-friendly pest control methods is growing, and novel strategies involving symbiotic microorganisms are under investigation. Strategies involving the bacterium Wolbachia have been proposed for managing pest insects and disease vectors. However, they have not yet been used for tephritid pest control. The aim of this study was to detect and characterize Wolbachia strains in tephritid flies from Argentina that could be proposed for use in area-wide programs applying the incompatible insect technique. We also aimed to identify and analyze Wolbachia strains in little-studied species of no economic importance. Infested fruits were collected from different localities in two provinces of Argentina. Adults were identified and the presence of Wolbachia strains was evaluated using the wsp surface protein primer. Genotyping was performed through multilocus sequence typing (MLST). When multiple infections were suspected, the obtained amplification products were cloned into P-GEN. Two new Wolbachia hosts were identified, Rhagoletis blanchardi Aczél and Rhagoletotrypeta pastranai Aczél from Tucumán. Interestingly, we found a multiple infection by Wolbachia in R. pastranai, detecting three different strains. The Anastrepha fraterculus (Wiedemann) strains were similar to haplotypes previously described in Argentina. Our results provide the first records of Wolbachia strains in new tephritid hosts from Argentina. The phenotypic effects of these strains on their hosts should be further investigated to evaluate their potential for Wolbachia-based control strategies.
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