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Genetic Diversity in Natural Populations of a Soil Bacterium Across a Landscape Gradient

Overview
Journal Proc Natl Acad Sci U S A
Specialty Science
Date 1988 Dec 1
PMID 16594009
Citations 39
Authors
J V McArthur
D A Kovacic
M H Smith
Affiliations
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Abstract

Genetic diversity in natural populations of the bacterium Pseudomonas cepacia was surveyed in 10 enzymes from 70 clones isolated along a landscape gradient. Estimates of genetic diversity, ranging from 0.54 to 0.70, were higher than any previously reported values of which we are aware and were positively correlated with habitat variability. Patterns of bacterial genetic diversity were correlated with habitat variability. Findings indicate that the source of strains used in genetic engineering will greatly affect the outcome of planned releases in variable environments. Selection of generalist strains may confer a large advantage to engineered populations, while selection of laboratory strains may result in quick elimination of the engineered strains.

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