Bacterial genotype and infection host shape the potential for cheating and evolution of virulence during passage in Bacillus thuringiensis.

Abstract excerpt

Understanding the evolution of pathogen host range is a challenging problem but one that is important for emerging infections and for biocontrol. Theory predicts that sequential selection in multiple host species should select for broad host range. Using two genotypes of B. thuringiensis we tested whether selection in alternating host environments would produce bacteria with increased virulence in both hosts,...

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