Geographical Distribution of Magnetotactic Bacteria
趋磁细菌的地域分布特征

Magnetotactic bacteria(MTB) are widely distributed in aquatic environments.To assess the correlation between their evolutionary relatedness and geographic distribution,we analyzed 239 16S rDNA sequences available in the Genbank,and constructed phylogenetic trees based on the sequences.After elimination of redundant sequences by grouping those with identity >97% into a single one,we analyzed in detail total 139 16S rDNA sequences,including 55 from marine MTB and 82 from freshwater sequences,and belonging to ...