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Mycobacterium tuberculosis lineage 4 comprises globally distributed and geographically restricted sublineages

  • David Stucki
  • , Daniela Brites
  • , Leila Jeljeli
  • , Mireia Coscolla
  • , Qingyun Liu
  • , Andrej Trauner
  • , Lukas Fenner
  • , Liliana Rutaihwa
  • , Sonia Borrell
  • , Tao Luo
  • , Qian Gao
  • , Midori Kato-Maeda
  • , Marie Ballif
  • , Matthias Egger
  • , Rita Macedo
  • , Helmi Mardassi
  • , Milagros Moreno
  • , Griselda Tudo Vilanova
  • , Janet Fyfe
  • , Maria Globan
  • Jackson Thomas, Frances Jamieson, Jennifer L. Guthrie, Adwoa Asante-Poku, Dorothy Yeboah-Manu, Eddie Wampande, Willy Ssengooba, Moses Joloba, W. Henry Boom, Indira Basu, James Bower, Margarida Saraiva, Sidra E. G. Vasconcellos, Philip Suffys, Anastasia Koch, Robert Wilkinson, Linda Gail-Bekker, Bijaya Malla, Serej D. Ley, Hans-Peter Beck, Bouke C. de Jong, Kadri Toit, Elisabeth Sanchez-Padilla, Maryline Bonnet, Ana Gil-Brusola, Matthias Frank, Veronique N. Penlap Beng, Kathleen Eisenach, Florian Gehre, Francesca Barletta

Research output: Contribution to journalA1: Peer-reviewed journal articlespeer-review

Abstract

Generalist and specialist species differ in the breadth of their ecological niches. Little is known about the niche width of obligate human pathogens. Here we analyzed a global collection of Mycobacterium tuberculosis lineage 4 clinical isolates, the most geographically widespread cause of human tuberculosis. We show that lineage 4 comprises globally distributed and geographically restricted sublineages, suggesting a distinction between generalists and specialists. Population genomic analyses showed that, whereas the majority of human T cell epitopes were conserved in all sublineages, the proportion of variable epitopes was higher in generalists. Our data further support a European origin for the most common generalist sublineage. Hence, the global success of lineage 4 reflects distinct strategies adopted by different sublineages and the influence of human migration.

Original languageEnglish
JournalNature Genetics
Volume48
Issue number12
Pages (from-to)1535-1543
Number of pages9
ISSN1061-4036
DOIs
Publication statusPublished - 2016

Keywords

  • PAPUA-NEW-GUINEA
  • GENETIC DIVERSITY
  • RESISTANT TUBERCULOSIS
  • ANTIGENIC VARIATION
  • GENOMIC DIVERSITY
  • HIV-INFECTION
  • SOUTH-AFRICA
  • POPULATION
  • PATHOGENS
  • EVOLUTION

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