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Southern East Asian origin and coexpansion of Mycobacterium tuberculosis Beijing family with Han Chinese

Luo, Tao and Comas, Iñaki and Luo, Dan and Lu, Bing and Wu, Jie and Wei, Lanhai and Yang, Chongguang and Liu, Qingyun and Gan, Mingyu and Sun, Gang and Shen, Xin and Liu, Feiying and Gagneux, Sebastien and Mei, Jian and Lan, Rushu and Wan, Kanglin and Gao, Qian. (2015) Southern East Asian origin and coexpansion of Mycobacterium tuberculosis Beijing family with Han Chinese. Proceedings of the National Academy of Sciences of the United States of America, Vol. 112, no. 26. pp. 8136-8141.

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Official URL: http://edoc.unibas.ch/dok/A6438858

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Abstract

The Beijing family is the most successful genotype of Mycobacterium tuberculosis and responsible for more than a quarter of the global tuberculosis epidemic. As the predominant genotype in East Asia, the Beijing family has been emerging in various areas of the world and is often associated with disease outbreaks and antibiotic resistance. Revealing the origin and historical dissemination of this strain family is important for understanding its current global success. Here we characterized the global diversity of this family based on whole-genome sequences of 358 Beijing strains. We show that the Beijing strains endemic in East Asia are genetically diverse, whereas the globally emerging strains mostly belong to a more homogenous subtype known as "modern" Beijing. Phylogeographic and coalescent analyses indicate that the Beijing family most likely emerged around 30,000 y ago in southern East Asia, and accompanied the early colonization by modern humans in this area. By combining the genomic data and genotyping result of 1,793 strains from across China, we found the "modern" Beijing sublineage experienced massive expansions in northern China during the Neolithic era and subsequently spread to other regions following the migration of Han Chinese. Our results support a parallel evolution of the Beijing family and modern humans in East Asia. The dominance of the "modern" Beijing sublineage in East Asia and its recent global emergence are most likely driven by its hypervirulence, which might reflect adaption to increased human population densities linked to the agricultural transition in northern China.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Medical Parasitology and Infection Biology > Tuberculosis Research (Gagneux)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
UniBasel Contributors:Gagneux, Sebastien
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:National Academy of Sciences
ISSN:0027-8424
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:06 Nov 2015 10:21
Deposited On:06 Nov 2015 10:21

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