title: [Molecular genetic analysis of DNA structure of pFra plasmids in plague pathogen of varying biovar].
abstract: Data on comparative molecular genetic analysis of pFra plasmids from plague bacillus belonging to either two biovars (antiqua and orientalis) are presented. It was established that during evolution these replicons were rearranged, which resulted in the differences between pFra plasmids of plague bacillus of antiqua biovar (Yersinia pestis 231 and Y. pestis 358/12) and that of orientalis biovar (Y. pestis A1122 and Y. pestis EV). These included inversions of two plasmid DNA regions and size differences of 3 kb.
authors.affiliation: Mikrob Russian Research Antiplague Institute, Saratov, Russia.
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Popov
authors.forename: Iu I
authors.initials: IuI
authors.lastname: Iashechkin
authors.forename: I G
authors.initials: IG
authors.lastname: Drozdov
mesh_terms: D019143:Evolution, Molecular; D009693:Nucleic Acid Hybridization; D010957:Plasmids / Q000235:genetics*; D015183:Restriction Mapping; D013045:Species Specificity; D015010:Yersinia pestis / Q000235:genetics*
vernacular_title: Molekuliarno-geneticheskiĭ analiz struktury DNK plazmid pFra shtammov vozbuditelia chumy razlichnykh biovarov.