In:
PLOS Pathogens, Public Library of Science (PLoS), Vol. 17, No. 9 ( 2021-9-21), p. e1009886-
Abstract:
Salmonella enterica ( S . enterica ) has infected humans for a long time, but its evolutionary history and geographic spread across Eurasia is still poorly understood. Here, we screened for pathogen DNA in 14 ancient individuals from the Bronze Age Quanergou cemetery (XBQ), Xinjiang, China. In 6 individuals we detected S . enterica . We reconstructed S . enterica genomes from those individuals, which form a previously undetected phylogenetic branch basal to Paratyphi C, Typhisuis and Choleraesuis–the so-called Para C lineage. Based on pseudogene frequency, our analysis suggests that the ancient S . enterica strains were not host adapted. One genome, however, harbors the Salmonella pathogenicity island 7 (SPI-7), which is thought to be involved in (para)typhoid disease in humans. This offers first evidence that SPI-7 was acquired prior to the emergence of human-adapted Paratyphi C around 1,000 years ago. Altogether, our results show that Salmonella enterica infected humans in Eastern Eurasia at least 3,000 years ago, and provide the first ancient DNA evidence for the spread of a pathogen along the Proto-Silk Road.
Type of Medium:
Online Resource
ISSN:
1553-7374
DOI:
10.1371/journal.ppat.1009886
DOI:
10.1371/journal.ppat.1009886.g001
DOI:
10.1371/journal.ppat.1009886.g002
DOI:
10.1371/journal.ppat.1009886.g003
DOI:
10.1371/journal.ppat.1009886.g004
DOI:
10.1371/journal.ppat.1009886.g005
DOI:
10.1371/journal.ppat.1009886.t001
DOI:
10.1371/journal.ppat.1009886.s001
DOI:
10.1371/journal.ppat.1009886.s002
DOI:
10.1371/journal.ppat.1009886.s003
DOI:
10.1371/journal.ppat.1009886.s004
DOI:
10.1371/journal.ppat.1009886.s005
DOI:
10.1371/journal.ppat.1009886.s006
DOI:
10.1371/journal.ppat.1009886.s007
DOI:
10.1371/journal.ppat.1009886.s008
DOI:
10.1371/journal.ppat.1009886.s009
DOI:
10.1371/journal.ppat.1009886.s010
DOI:
10.1371/journal.ppat.1009886.s011
DOI:
10.1371/journal.ppat.1009886.s012
DOI:
10.1371/journal.ppat.1009886.s013
DOI:
10.1371/journal.ppat.1009886.s014
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2021
detail.hit.zdb_id:
2205412-1
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