Genetic diversity in natural populations of a soil bacterium across a landscape gradient

AUTOR(ES)

McArthur, J. Vaun

RESUMO

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.

Documentos Relacionados

• Soil Microbial Biomass Across a Gradient of Preserved Native Cerrado
• Genetic structure of natural populations of the nitrogen-fixing bacterium Rhizobium meliloti.
• Soil microbial C:N:P ratio across physiognomies of Brazilian Cerrado Soil microbial biomass across a gradient of preserved native Cerrado
• Genetic diversity in natural populations of Jacaranda decurrens Cham. determined using RAPD and AFLP markers
• Genetic diversity in populations of Brazil nut