Differential plague-transmission dynamics determine Yersinia pestis population genetic structure on local, regional, and global scales

Jessica M. Girard, David M Wagner, Amy J. Vogler, Christine Keys, Christopher J. Allender, Lee C. Drickamer, Paul S Keim

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

Plague, the disease caused by the bacterium Yersinia pestis, has greatly impacted human civilization. Y. pestis is a successful global pathogen, with active foci on all continents except Australia and Antarctica. Because the Y. pestis genome is highly monomorphic, previous attempts to characterize the population genetic structure within a single focus have been largely unsuccessful. Here we report that highly mutable marker loci allow determination of Y. pestis population genetic structure and tracking of transmission patterns at two spatial scales within a single focus. In addition, we found that in vitro mutation rates for these loci are similar to those observed in vivo, which allowed us to develop a mutation-rate-based model to examine transmission mechanisms. Our model suggests there are two primary components of plague ecology: a rapid expansion phase for population growth and dispersal followed by a slower persistence phase. This pattern seems consistent across local, regional, and even global scales.

Original languageEnglish (US)
Pages (from-to)8408-8413
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume101
Issue number22
DOIs
StatePublished - Jun 1 2004

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Yersinia pestis
Plague
Genetic Structures
Population Genetics
Mutation Rate
Civilization
Population Growth
Ecology
Genome
Bacteria

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

Differential plague-transmission dynamics determine Yersinia pestis population genetic structure on local, regional, and global scales. / Girard, Jessica M.; Wagner, David M; Vogler, Amy J.; Keys, Christine; Allender, Christopher J.; Drickamer, Lee C.; Keim, Paul S.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 101, No. 22, 01.06.2004, p. 8408-8413.

Research output: Contribution to journalArticle

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