The effect of pathogens on selection against deleterious mutations in Drosophila melanogaster.

Abstract excerpt

In natural populations, fitness is reduced by both deleterious mutations and parasites. Few studies have examined interactions between these two factors, particularly at the level of individual genes. We examined how the presence of a bacterial pathogen, Pseudomonas aeruginosa, affected the selection against each of eight deleterious mutations in Drosophila melanogaster. We found that mutations tended to become...

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