Phylogeography of the second plague pandemic revealed through analysis of historical Yersinia pestis genomes.
Nat Commun
; 10(1): 4470, 2019 10 02.
Article
em En
| MEDLINE
| ID: mdl-31578321
ABSTRACT
The second plague pandemic, caused by Yersinia pestis, devastated Europe and the nearby regions between the 14th and 18th centuries AD. Here we analyse human remains from ten European archaeological sites spanning this period and reconstruct 34 ancient Y. pestis genomes. Our data support an initial entry of the bacterium through eastern Europe, the absence of genetic diversity during the Black Death, and low within-outbreak diversity thereafter. Analysis of post-Black Death genomes shows the diversification of a Y. pestis lineage into multiple genetically distinct clades that may have given rise to more than one disease reservoir in, or close to, Europe. In addition, we show the loss of a genomic region that includes virulence-related genes in strains associated with late stages of the pandemic. The deletion was also identified in genomes connected with the first plague pandemic (541-750 AD), suggesting a comparable evolutionary trajectory of Y. pestis during both events.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Peste
/
Yersinia pestis
/
DNA Bacteriano
/
Genoma Bacteriano
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Sequenciamento de Nucleotídeos em Larga Escala
/
Pandemias
Tipo de estudo:
Prognostic_studies
Limite:
Humans
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article