[DNA polymorphism in the genomes of different Escherichia coli strains].


Bacteria have been traditionally classified on the basis of their morphology, biochemical reaction, serology and etc. However, in some case these methods could not authenticate the closely related bacteria strains. In this study, we cloned two repetitive DNA sequences with 0.9 and 0.6 kb in length from Escherichia coli K12 strain JM109 and designated as ECR… (More)