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Combined elevated temperature and CO2 alter Wolbachia abundance and host fitness but not cytoplasmic incompatibility in a stored-product pest

Coinfecting endosymbiont strains may respond differently to environmental change, with consequences for host performance and reproductive incompatibility. We investigated an isofemale line of Callosobruchus chinensis coinfected with the cytoplasmic incompatibility (CI)-inducing Wolbachia strains wBruCon (Con) and wBruOri (Ori), together with derived Con-only and uninfected sublines. Beetles were…

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