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M Feldman, M Harbeck, M Keller, MA Spyrou, A Rott, B Trautmann, HC Scholz, B Päffgen, J Peters, M McCormick, K Bos, A Herbig and J Krause
The Justinianic Plague, which started in the 6(th) century and lasted to the mid-8(th) century, is thought to be the first of three historically documented plague pandemics causing massive casualties. Historical accounts and molecular data suggest the bacterium Yersinia pestis as its etiological agent. Here we present a new high-coverage (17.9 fold) Y. pestis genome obtained from a 6(th)-century skeleton recovered from a southern German burial site close to Munich. The reconstructed genome enabled the detection of 30 unique substitutions as well as structural differences that have not been previously described. We report indels affecting a lacl family transcription regulator gene as well as non-synonymous substitutions in the nrdE, fadJ and pcp genes, that have been suggested as plague virulence determinants or have been shown to be up-regulated in different models of plague infection. In addition, we identify 19 false positive substitutions in a previously published lower coverage Y. pestis genome from another archaeological site of the same time period and geographical region that is otherwise genetically identical to the high coverage genome sequence reported here, suggesting low genetic diversity of the plague during the 6th century in rural southern Germany.
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Bacteria, Genome, DNA, Virus, Genetics, Gene, Black Death, Yersinia pestis
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