Conserved symbiotic plasmid DNA sequences in the multireplicon pangenomic structure of Rhizobium etli.

ABSTRACT: Strains of the same bacterial species often show considerable genomic variation. To examine the extent of such variation in Rhizobium etli, the complete genome sequence of R. etli CIAT652 and the partial genomic sequences of six additional R. etli strains having different geographical origins were determined. The sequences were compared with each other and with the previously reported genome sequence of R. etli CFN42. DNA sequences common to all strains constituted the greater part of these genomes and were localized in both the chromosome and large plasmids. About 700 to 1,000 kb of DNA that did not match sequences of the complete genomes of strains CIAT652 and CFN42 was unique to each R. etli strain. These sequences were distributed throughout the chromosome as individual genes or chromo

SUBMITTER: Gonzalez V 

PROVIDER: S-EPMC2832352 | biostudies-literature | 2010 Mar

REPOSITORIES: biostudies-literature