Haplotype diversity in "source-sink" dynamics of Escherichia coli urovirulence.

Abstract excerpt

FimH, the mannose-specific, type 1 fimbrial adhesin of Escherichia coli, acquires amino acid replacements adaptive in extraintestinal niches (the genitourinary tract) but detrimental in the main habitat (the large intestine). This microevolutionary dynamics is reminiscent of an ecological "source-sink" model of continuous species spread from a stable primary habitat (source) into transient secondary niches...

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