Evolution of transcription regulatory genes is linked to niche specialization in the bacterial pathogen Streptococcus pyogenes.

Abstract excerpt

Streptococcus pyogenes is a highly prevalent bacterial pathogen, most often giving rise to superficial infections at the throat or skin of its human host. Three genotype-defined subpopulations of strains exhibiting strong tropisms for either the throat or skin (specialists) or having no obvious tissue site preference (generalists) are recognized. Since the microenvironments at the throat and skin are distinct,...

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