title: Homology analysis of pathogenic Yersinia species Yersinia enterocolitica, Yersinia pseudotuberculosis, and Yersinia pestis based on multilocus sequence typing.
abstract: We developed a multilocus sequence typing (MLST) scheme and used it to study the population structure and evolutionary relationships of three pathogenic Yersinia species. MLST of these three Yersinia species showed a complex of two clusters, one composed of Yersinia pseudotuberculosis and Yersinia pestis and the other composed of Yersinia enterocolitica. Within the first cluster, the predominant Y. pestis sequence type 90 (ST90) was linked to Y. pseudotuberculosis ST43 by one locus difference, and 81.25% of the ST43 strains were from serotype O:1b, supporting the hypothesis that Y. pestis descended from the O:1b serotype of Y. pseudotuberculosis. We also found that the worldwide-prevalent serotypes O:1a, O:1b, and O:3 were predominated by specific STs. The second cluster consisted of pathogenic and nonpathogenic Y. enterocolitica strains, two of which may not have identical STs. The pathogenic Y. enterocolitica strains formed a relatively conserved group; most strains clustered within ST186 and ST187. Serotypes O:3, O:8, and O:9 were separated into three distinct blocks. Nonpathogenic Y. enterocolitica STs were more heterogeneous, reflecting genetic diversity through evolution. By providing a better and effective MLST procedure for use with the Yersinia community, valuable information and insights into the genetic evolutionary differences of these pathogens were obtained.
authors.affiliation: National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing, China.
authors.forename: Ran
authors.initials: R
authors.lastname: Duan
authors.forename: Junrong
authors.initials: J
authors.lastname: Liang
authors.forename: Guoxiang
authors.initials: G
authors.lastname: Shi
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Cui
authors.forename: Rong
authors.initials: R
authors.lastname: Hai
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Yuchun
authors.initials: Y
authors.lastname: Xiao
authors.forename: Kewei
authors.initials: K
authors.lastname: Li
authors.forename: Haiyan
authors.initials: H
authors.lastname: Qiu
authors.forename: Wenpeng
authors.initials: W
authors.lastname: Gu
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Du
authors.forename: Huaiqi
authors.initials: H
authors.lastname: Jing
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
mesh_terms: D000818:Animals; D016000:Cluster Analysis; D014644:Genetic Variation; D005838:Genotype; D006801:Humans; D058885:Multilocus Sequence Typing / Q000379:methods*; D017385:Sequence Homology; D015008:Yersinia enterocolitica / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D015010:Yersinia pestis / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D015011:Yersinia pseudotuberculosis / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification